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WO2013065667A1 - Procédé de commande d'héliostat, dispositif de commande d'héliostat, installation de collecte de chaleur, procédé pour faire fonctionner un dispositif de collecte de chaleur solaire et dispositif de collecte de chaleur solaire - Google Patents

Procédé de commande d'héliostat, dispositif de commande d'héliostat, installation de collecte de chaleur, procédé pour faire fonctionner un dispositif de collecte de chaleur solaire et dispositif de collecte de chaleur solaire Download PDF

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Publication number
WO2013065667A1
WO2013065667A1 PCT/JP2012/077982 JP2012077982W WO2013065667A1 WO 2013065667 A1 WO2013065667 A1 WO 2013065667A1 JP 2012077982 W JP2012077982 W JP 2012077982W WO 2013065667 A1 WO2013065667 A1 WO 2013065667A1
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WO
WIPO (PCT)
Prior art keywords
heliostat
heat
selection pattern
casing
state
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/077982
Other languages
English (en)
Japanese (ja)
Inventor
瞬 亀井
修平 佐々木
稔康 平岡
志郎 杉本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2011239073A external-priority patent/JP2013096626A/ja
Priority claimed from JP2011239724A external-priority patent/JP2013096636A/ja
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of WO2013065667A1 publication Critical patent/WO2013065667A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

Definitions

  • the present invention relates to a heliostat control method, a heliostat control device, and a heat collection facility.
  • the present invention also relates to a method for operating a solar heat collector that is applied to solar thermal power plants and chemical plants and collects and uses solar heat energy, and a solar heat collector.
  • the heat collection equipment that selects and uses the necessary mirrors includes a process temperature and pressure and solar radiation intensity measurement unit, and a part to select (calculate) the necessary mirrors based on the measurement results of these measurement units.
  • the light is incident while sequentially changing the mirrors.
  • a solar heat collecting apparatus described in Patent Document 1 includes a casing having an opening through which sunlight reflected by a heliostat is incident, and a plurality of heat media that are arranged in the casing circumferential direction and in which a heat medium flows. Heat receiving pipe.
  • Patent Document 1 describes that the operation control system of a solar heat receiver reflects the detection result of the outlet side gas temperature and the solar radiation intensity of the heat receiving pipe in the correction of the angle of the heliostat, the quantity used, and the like.
  • the solar heat collecting apparatus described in Patent Document 1 creates temperature monitoring means for monitoring the temperature inside the casing, temperature data acquired by the temperature monitoring means, and a temperature distribution associating the temperature distribution with the temperature abnormal portion. Temperature processing means for performing analysis for extraction.
  • the solar heat collecting apparatus described in Patent Document 1 includes a heliostat control unit that corrects an angle of an arbitrary heliostat based on the temperature abnormal portion obtained by the temperature processing unit.
  • such a solar heat collecting apparatus 350 is provided with a heat receiving opening 352 in a casing 351 that houses a heat receiver (not shown), and light from a plurality of heliostats (not shown) receives heat. The light is incident from the opening 352 for use and used for power generation.
  • the plurality of heliostats retreat from the condensing position where the plurality of heliostats are condensed in the heat receiving opening 352 to the retreat position, so that the reflected light R is irradiated with the reflected light R.
  • Move to A51 At this time, the trajectory traced when the plurality of heliostats retract from the condensing position to the retracted position is only the pair of lateral directions X51 with respect to the heat receiving opening 352.
  • An object of the present invention is to provide a heliostat control method, a heliostat control device, and a heat collection facility that can appropriately cope with a situation that changes from moment to moment and that can obtain a more appropriate amount of heat input and distribution of heat input. It is in.
  • Another object of the present invention is to provide a solar heat collecting apparatus operating method and a solar heat collecting apparatus capable of preventing the partial increase in temperature of the heat receiver when the heliostat is replaced and improving the quality. It is in.
  • a heliostat control method includes a heat receiver and a plurality of heliostats capable of switching ON / OFF of sunlight irradiation with respect to the heat receiver.
  • a method for controlling a heliostat of a heat collecting facility that collects sunlight by receiving sunlight, and obtains a selection pattern that is a combination of ON / OFF of the plurality of heliostats based on at least weather information
  • a heliostat control step for performing ON / OFF control of the plurality of heliostats according to the obtained selection pattern, and periodically executing the heliostat control step, and further determining the amount of heat received by the heat receiver.
  • a form determining step for determining an execution form of the heliostat control step based on related information is provided.
  • the execution period of the heliostat control step is determined as an execution form of the heliostat control step.
  • the process of obtaining the selection pattern in the heliostat control step is executed. It is determined whether or not to end the process of obtaining the selection pattern by discarding the data in the process during the middle.
  • a process for obtaining the selection pattern performed in the heliostat control step is performed. Decide whether to simplify.
  • the heliostat control method is based on at least one of weather information, status information of the heat receiver, or information indicating the amount of heat to be supplied by the heat receiver. , Comprising a state determination step for determining whether the heat collection state of the heat collection facility is in a normal state or a processing required state, and in the form determination step, based on the determination result in the state determination step, An execution form of the heliostat control step is determined.
  • the heliostat control device is a heliostat control device that controls a plurality of heliostats capable of switching ON / OFF of sunlight irradiation with respect to the heat receiver, and includes at least weather information.
  • a heliostat control that obtains a selection pattern which is a combination of ON / OFF of the plurality of heliostats based on the obtained selection pattern and periodically repeats a process of performing ON / OFF control of the plurality of heliostats according to the obtained selection pattern
  • a form determining unit for determining an execution form of the heliostat control unit.
  • the morphological determination unit determines an execution cycle of the heliostat control unit as an execution mode of the heliostat control unit.
  • the form determining unit may, as the execution form of the heliostat control unit, obtain data in the process when the heliostat control unit is executing a process for obtaining the selection pattern. It is determined whether or not to end the process of discarding and obtaining the selection pattern.
  • the form determining unit determines whether or not to simplify the process for obtaining the selection pattern performed by the heliostat control unit as the execution form of the heliostat control unit. .
  • the heliostat control device is based on at least one of weather information, state information of the heat receiver, or information indicating the amount of heat to be supplied by the heat receiver.
  • a state determination unit that determines whether the heat collection state of the heat collection facility is in a normal state or a processing-necessary state, and the form determination unit determines whether the helio is based on a determination result of the state determination unit.
  • the execution mode of the stat control unit is determined.
  • the heat collecting facility includes any one of the above-described heliostat control devices.
  • a method for operating a solar heat collecting apparatus includes a casing having an opening for entering light and housing a heat receiver therein, a tower in which the casing is disposed at the top, A plurality of heliostats that are arranged around the tower and reflect sunlight, and are switched to a condensing position where the reflected light of the heliostat is collected in the opening and a retreating position that escapes from the casing.
  • a driving method of a solar heat collecting apparatus including a drive control unit that drives and controls a heliostat, based on the heat resistance strength of the casing and the power consumption required to drive the heliostat,
  • the heliostat is driven and controlled so that the path followed by the reflected light of the heliostat is dispersed in a plurality of directions.
  • the method for operating a solar heat collector is a path along the longitudinal direction on the casing under a constant attitude change speed when driving and controlling each heliostat.
  • the heliostat that is a long distance from the casing is used, and for the reflected light that follows a path along the short direction on the casing, the heliostat that is a short distance from the casing is used.
  • the path followed by the reflected light of the heliostat is up, down, left and right.
  • a solar heat collecting apparatus includes a casing having an opening for entering light and housing a heat receiver therein, a tower in which the casing is disposed at the top, and a periphery of the tower A plurality of heliostats that reflect sunlight, and a heliostat that is switched between a condensing position where the reflected light of the heliostat is condensed in the opening and a retracting position for escaping out of the casing.
  • the drive control unit for driving control Based on the drive control unit for driving control, the heat resistance strength of the casing, and the power consumption required to drive the heliostat, the path followed by the reflected light of the heliostat at the time of switching is distributed in a plurality of directions. And a control unit for driving and controlling the heliostat.
  • control unit is configured to control the reflected light that follows a path along the longitudinal direction on the casing under a constant posture change speed when driving and controlling each heliostat.
  • the path followed by the reflected light of the heliostat has two axes, upper, lower, left and right.
  • the heliostat control method, the heliostat control device, and the heat collection facility of the present invention in the heat collection facility that selects and uses a necessary mirror, it is possible to appropriately cope with a situation that changes from moment to moment, and more appropriately.
  • the amount of heat input and heat input distribution can be obtained.
  • the effect of improving the quality by preventing the partial increase in temperature of the heat receiver when the heliostat is replaced can be achieved. Play.
  • FIG. 1 is a schematic configuration diagram showing a configuration of a heat collecting facility in the first embodiment of the present invention.
  • the heat collection facility of the present embodiment reflects sunlight with a heat receiver 20 irradiated with sunlight, a tower 60 on which the heat receiver 20 is fixed, and a reflecting mirror 11.
  • a plurality of heliostats 10 that irradiate sunlight to the heat receiver 20, a direct solar radiation meter 40 that detects the amount of direct solar radiation, and a heliostat control device 100 that controls the plurality of heliostats 10.
  • the heliostat control device 100 receives a command related to the amount of heat received by the heat receiver 20 (for example, a command value for the amount of heat received by the heat receiver 20 or a command value for the amount of power generated by the solar thermal power generation facility 1) from the host device 150. .
  • the heat collection facility of this embodiment includes a compressor (not shown) that supplies air to the heat receiver 20, a gas turbine 50 that is driven by the air heated by the heat receiver 20, and power generation by driving the gas turbine 50.
  • a solar thermal power generation facility 1 (not shown).
  • the heat energy from the heat receiver 20 is used for generating electric energy, but the present embodiment is not limited to this, and this heat energy may be used for generating steam. In addition, it may be used as a heating source such as a reactor in a chemical plant.
  • the heliostat 10 includes a reflecting mirror 11 that reflects sunlight, a support leg 12 that supports the reflecting mirror 11, and a drive controller 13 that directs the reflecting mirror 11 in a target direction.
  • the plurality of heliostats 10 are scattered on the heliostat region F.
  • the heliostat area F has a fan shape and is set so that the main part of the fan faces the south side. Further, the above-described tower 60 is built at the main position of the fan, and the heat receiver 20 is fixed on the north side of the upper portion of the tower 60.
  • FIG. 2 is an explanatory diagram showing the outer shape of the heat receiver 20 when viewed from the side, together with the positional relationship with the piping inside the heat receiver 20.
  • FIG. 3 is an explanatory diagram showing the outer shape of the heat receiver 20 as viewed from the front, together with the positional relationship with the piping inside the heat receiver 20.
  • FIG. 4 is an explanatory diagram showing the outer shape of the heat receiver 20 as viewed from above, together with the positional relationship with the internal piping (header) and the opening of the case.
  • the heat receiver 20 includes a heat receiving portion 21 that is irradiated with sunlight, and a casing 31 that covers the heat receiving portion 21.
  • the heat receiving portion 21 includes an arc-shaped lower header 22, an arc-shaped upper header 23 disposed above the lower header 22, and a plurality of heat receiving tubes that extend in the vertical direction and connect the lower header 22 and the upper header 23. 24.
  • the plurality of heat receiving tubes 24 are arranged in the circumferential direction in which the arc-shaped lower header 22 and the upper header 23 extend.
  • the lower header 22 is connected to an inlet pipe 25 that sends the compressed air from the compressor described above to the lower header 22.
  • the outlet pipe 26 that sends the heated air collected in the upper header 23 from the plurality of heat receiving pipes 24 to, for example, the above-described gas turbine is connected to the upper header 23.
  • the heat receiving portion 21 is supported by the casing 31 or the tower 60 by a support tool 29.
  • the casing 31 has a sector shape in accordance with the shapes of the lower header 22 and the upper header 23 whose arc shape is viewed from above.
  • a top plate 32 that covers the upper side of the heat receiving unit 21, a side plate 33 that covers the side periphery of the heat receiving unit 21, an inclined plate 34 that is the main side of the fan-shaped casing 31 and covers the lower side of the heat receiving unit 21, and a fan-shaped casing 31 and a bottom plate 36 that covers the lower side of the heat receiving portion 21.
  • the inclined plate 34 is inclined so as to be directed upward from the arc side of the fan-shaped casing 31 toward the main side.
  • a circular opening 35 for guiding sunlight from the heliostat 10 is formed in the inclined plate 34 in the casing 31. For this reason, the penetrating direction of the opening 35 formed in the inclined plate 34 is obliquely upward.
  • This casing 31 has an arc-side portion 33 s of the fan-shaped casing 31 facing the south side in the side plate 33, and this portion 33 s is fixed to the north side of the upper portion of the tower 60. Therefore, the main part of the fan-shaped casing 31 faces the north side, that is, the side on which the plurality of heliostats 10 are arranged. Moreover, the penetration direction of the opening 35 formed in the inclined plate 34 of the casing 31 is obliquely upward toward the upper side from the north side toward the south side.
  • the fan-shaped heliostat region F is set on the north side which is the diagonally lower side opposite to the penetration direction with respect to the heat receiver 20, and a plurality of heliostats 10 are arranged in the heliostat region F. is doing.
  • this embodiment is applicable to various heat collection facilities using a heliostat.
  • the present embodiment can be applied to a heat collection facility installed in the Southern Hemisphere.
  • the penetration direction of the opening 35 of the casing 31 may be obliquely upward toward the upper side from the south side toward the north side, and the diagonally lower side opposite to the penetration direction with respect to the heat receiver 20.
  • a fan-shaped heliostat region F may be set on the south side, and a plurality of heliostats 10 may be arranged in the heliostat region F.
  • a plurality of heliostats 10 may be arranged in a ring-shaped heliostat region centered on the heat receiver.
  • FIG. 5 is a schematic block diagram showing a functional configuration of the heliostat control device 100.
  • the heliostat control device 100 includes a weather information acquisition unit 111, a state information acquisition unit 112, a host device communication unit 113, a state determination unit 121, a cycle determination unit 122, and a heliostat control.
  • the heliostat control device 100 performs ON / OFF control of each heliostat 10. More specifically, the heliostat control device 100 determines ON / OFF of each heliostat 10 based on various information such as the amount of direct solar radiation detected by the direct solar radiation meter 40. Then, the heliostat control device 100 focuses the sunlight on the heat receiver 20 (that is, reflects the sunlight into the opening 35 of the heat receiver 20) (reflection) on the heliostat 10 determined to be ON. A control signal for controlling to be a condensing position that is the inclination of the mirror 11 is transmitted.
  • the heliostat control device 100 has a retracted position that is a position where the heliostat 10 determined to be OFF does not concentrate sunlight on the heat receiver 20 (that is, sunlight reflection does not hit the heat receiver 20).
  • a control signal for controlling to be transmitted is transmitted.
  • the weather information acquisition unit 111 acquires information indicating the amount of direct solar radiation detected by the direct solar radiation meter 40 (hereinafter referred to as “direct solar radiation amount information”) as weather information.
  • the weather information acquired by the weather information acquisition unit 111 is not limited to the direct solar radiation amount information.
  • the weather information acquisition unit 111 may acquire information indicating the atmospheric temperature around the heat receiver 20 as weather information in addition to the direct solar radiation amount information.
  • the heliostat control unit 130 predicts changes in the temperature and pressure of the gas in the heat receiving pipe 24 based on the amount of direct solar radiation and the atmospheric temperature, and controls the heliostat 10 based on the prediction result. I can do it.
  • the weather information acquisition unit 111 outputs the acquired weather information to the state determination unit 121, the cycle determination unit 122, and the heliostat control unit 130.
  • the state information acquisition unit 112 as the state information of the heat receiver 20, for example, information indicating the surface temperature of the heat receiving tube 24 (hereinafter referred to as “surface temperature information” of the heat receiving tube 24), or the air in the heat receiving tube 24 Information indicating pressure (hereinafter referred to as “air pressure information” in the heat receiving pipe 24) is acquired from a sensor installed in the heat receiving pipe 24.
  • the state information acquisition unit 112 outputs the acquired state information of the heat receiver 20 to the state determination unit 121, the cycle determination unit 122, and the heliostat control unit 130.
  • the host device communication unit 113 communicates with the host device 150.
  • the higher-level device communication unit 113 acquires information indicating the amount of heat that the heat receiver 20 should supply from the higher-level device 150.
  • the information indicating the amount of heat to be supplied by the heat receiver 20 acquired by the higher-level device communication unit 113 may be information directly indicating the amount of heat to be supplied by the heat receiver 20 or indirectly. It may be information.
  • the host device communication unit 113 acquires the power generation amount (supply power) target value of the solar thermal power generation facility 1 from the host device 150, and the heliostat control unit 130 generates the power generation amount target value according to a predetermined conversion method stored in advance. Therefore, the amount of heat to be supplied from the heat receiver 20 may be obtained.
  • the host device communication unit 113 outputs the acquired information indicating the amount of heat to be supplied by the heat receiver 20 to the state determination unit 121, the cycle determination unit 122, and the heliostat control unit 130.
  • the state determination unit 121 is based on at least one of weather information, state information of the heat receiver 20, or information indicating the amount of heat to be supplied by the heat receiver 20 as information related to the amount of heat received by the heat receiver 20. Then, it is determined whether the heat collection state of the solar thermal power generation facility 1 is in the normal state or in the processing required state. Then, the state determination unit 121 outputs the obtained determination result to the cycle determination unit 122 and the heliostat control unit 130.
  • the required processing state here is a state in which the state of the heliostat 10 needs to be changed relatively abruptly (in comparison with the normal state). For example, when the surface temperature of the heat receiving tube 24, which is a metal tube, is increased, there may be a problem in strength or the metal surface may be oxidized. Therefore, when the state determination unit 121 detects that the surface temperature of the heat receiving pipe 24 is equal to or higher than a predetermined threshold temperature based on the surface temperature information of the heat receiving pipe 24 acquired by the state information acquisition unit 112, the solar thermal power generation facility It is determined that the heat collection state of 1 is in a state requiring processing. Here, the state determination unit 121 sets a temperature lower than the temperature at which the strength problem may occur in the heat receiving pipe 24 or the metal surface of the heat receiving pipe 24 may be oxidized by a predetermined threshold. The temperature is stored in advance.
  • the state determination unit 121 detects that the pressure of the air in the heat receiving pipe 24 is equal to or higher than a predetermined threshold pressure based on the air pressure information in the heat receiving pipe 24 acquired by the state information acquisition unit 112, the solar heat It is determined that the heat collection state of the power generation facility 1 is in a state requiring processing.
  • the state determination unit 121 stores in advance, as a predetermined threshold pressure, a pressure that is reduced by a margin from a pressure that may cause a problem in strength in the heat receiving pipe 24.
  • the state determination unit 121 is based on information indicating the amount of heat to be supplied from the heat receiver 20 acquired by the higher-level device communication unit 113, and a predetermined threshold value that stores an increase in the amount of heat to be supplied by the heat receiver 20 in advance. If it detects that it became more than the amount of change, it will determine with the heat collection state of the solar thermal power generation equipment 1 being in a process required state.
  • the normal state referred to here is a state that is not a state requiring processing.
  • the information related to the amount of heat received by the heat receiver 20 here is information that may affect the amount of heat received by the heat receiver 20 or the amount of heat received by the heat receiver 20.
  • meteorological information such as direct solar radiation information
  • state information of the heat receiver 20 such as surface temperature information of the heat receiving pipe 24, a heat collection target value set in the heat receiver 20, and the like are related to the heat received by the heat receiver 20. It corresponds to the information to be.
  • the cycle determination unit 122 determines an execution cycle (hereinafter, simply referred to as an execution cycle of the heliostat control unit 130) in which the heliostat control unit 130 performs processing based on information related to the amount of heat received by the heat receiver 20. To do. Specifically, in the cycle determination unit 122, the state determination unit 121 collects heat from the solar thermal power generation facility 1 based on information related to the amount of heat received by the heat receiver 20 (the state of the solar thermal power generation facility 1 related to heat collection). Is determined to be a process-necessary state, the execution cycle of the heliostat control unit 130 is made shorter than the cycle in the normal state. The cycle determination unit 122 outputs information indicating the determined execution cycle to the heliostat control unit 130.
  • an execution cycle hereinafter, simply referred to as an execution cycle of the heliostat control unit 130.
  • the heliostat control unit 130 obtains a selection pattern that is a combination of ON / OFF of the heliostat 10 based on at least weather information, and performs a process of performing ON / OFF control of each heliostat 10 according to the obtained selection pattern. Execute periodically and repeatedly.
  • the selection pattern acquisition unit 131 obtains a selection pattern (a combination of ON / OFF of the heliostat 10 selected by the selection pattern acquisition unit 131) based on at least weather information.
  • the selection pattern acquisition unit 131 is the weather information acquired by the weather information acquisition unit 111, the state information of the heat receiver 20 acquired by the state information acquisition unit 112, and the heat receiver acquired by the host device communication unit 113. Based on the information indicating the amount of heat to be supplied, simulations are performed for some ON / OFF combinations of each heliostat 10.
  • the selection pattern acquisition unit 131 converts each simulation result into several evaluation criteria such as the degree of conformity to the amount of heat to be supplied by the heat receiver 20, the surface temperature of the heat receiving pipe 24, and the pressure of air in the heat receiving pipe 24. The combination that is evaluated based on the above and obtains the highest evaluation result is taken as the selection pattern. Then, the selection pattern acquisition unit 131 outputs the obtained selection pattern to the control signal generation unit 132.
  • the control signal generation unit 132 generates a control signal for each heliostat 10 according to the selection pattern acquired by the selection pattern acquisition unit 131 and outputs the control signal to the control signal transmission unit 133.
  • the control signal transmission unit 133 transmits the control signal generated by the control signal generation unit 132 to each heliostat 10. Accordingly, the heliostat control unit 130 (the control signal generation unit 132 and the control signal transmission unit 133) performs ON / OFF control of each heliostat 10 according to the selection pattern acquired by the selection pattern acquisition unit 131.
  • the heliostat control device 100 includes, for example, a computer. More specifically, the weather information acquisition unit 111, the state information acquisition unit 112, the higher-level device communication unit 113, and the control signal transmission unit 133 are realized by a communication unit included in the computer. In addition, the cycle determination unit 122, the state determination unit 121, the selection pattern acquisition unit 131, and the control signal generation unit 132 are included in a central processing unit (CPU) included in the computer. This is realized by reading the program from the memory to be executed and executing it.
  • CPU central processing unit
  • the host device 150 is, for example, a control device for the solar thermal power generation facility 1, and transmits information indicating the amount of heat to be supplied by the heat receiver 20 to the heliostat control device 100.
  • the cycle determination unit 122 and the selection pattern acquisition unit 131 are examples of a form determination unit in the present embodiment. That is, as described above, the cycle determination unit 122 determines the execution cycle of the heliostat control unit 130 based on the determination result of the state determination unit 121. In addition, as will be described later, the selection pattern acquisition unit 131 determines whether to discard the data in the currently executed heliostat selection calculation and end the heliostat selection calculation based on the determination result of the state determination unit 121. To do. As will be described later, the selection pattern acquisition unit 131 determines whether to simplify the heliostat selection calculation based on the determination result of the state determination unit 121.
  • the cycle determination unit 122 determines the execution cycle of the heliostat control unit 130 and the selection pattern acquisition unit 131 determines the data in the currently executed heliostat selection calculation and terminates the heliostat selection calculation.
  • the selection pattern acquisition unit 131 determines the execution mode of the heliostat control unit in this embodiment (execution mode in which the heliostat control unit performs processing). It is an example.
  • FIG. 6 is an explanatory diagram of the relationship between the execution cycle and the operation timing of the solar thermal power generation facility 1 when the execution cycle is relatively long.
  • the cycle determination unit 122 determines the execution cycle as a relatively long time p111, and the selection pattern acquisition unit 131 obtains a selection pattern of the heliostat 10 for each time p111 ( Hereinafter, this is referred to as “heliostat selection calculation”.
  • the selection pattern acquisition unit 131 ends the heliostat selection calculation after time p112 from the start of the heliostat selection calculation, and acquires the selection pattern.
  • the control signal generation unit 132 When the selection pattern acquisition unit 131 acquires the selection pattern, the control signal generation unit 132 generates a control signal for each heliostat 10 according to the selection pattern, and the control signal transmission unit 133 sends the control signal to each heliostat 10. Send. And in each heliostat 10, the drive controller 13 starts the operation
  • Each heliostat 10 is in a stationary state for a period of time p114 from the end of the operation until the operation is started again in accordance with the control signal transmitted from the control signal transmission unit 133 next time. During this time, each heliostat 10 stably radiates sunlight to the heat receiver 20. That is, during the time p114, the heat receiver 20 stably collects heat.
  • FIG. 7 is an explanatory diagram of the relationship between the execution cycle and the operation timing of the solar thermal power generation facility 1 when the execution cycle is relatively short.
  • the cycle determination unit 122 determines the execution cycle as a relatively short time p121, and the selection pattern acquisition unit 131 performs a heliostat selection calculation for each time p121.
  • the selection pattern acquisition part 131 complete
  • each heliostat 10 starts an operation of changing the angle of the reflecting mirror 11 in accordance with the control signal.
  • the execution cycle is shorter than in the case of FIG. 6, each heliostat 10 receives the control signal with a shorter cycle than in the case of FIG. 6.
  • the time for which each heliostat 10 stably irradiates sunlight to the heat receiver 20 is shorter than the time p114 in the case of FIG.
  • the time during which the heliostat 10 stops and stably radiates sunlight to the heat receiver 20. Will disappear. That is, there is no time for the heat receiver 20 to collect heat stably.
  • the execution period is long from the viewpoint of the heat receiver 20 stably collecting heat.
  • FIG. 8 is an explanatory diagram of the relationship between the execution cycle and the operation timing of the solar thermal power generation facility 1 when the heat collection state of the solar thermal power generation facility 1 is in the required processing state.
  • the cycle determination unit 122 determines the execution cycle as the time p ⁇ b> 111, and the selection pattern acquisition unit 131 performs the heliostat selection calculation for each time p ⁇ b> 111.
  • the execution cycle is long as shown in FIG. 8 (time p111 in FIG. 8).
  • the time from the occurrence of an event to the calculation of the heliostat selection corresponding to the event also becomes longer, and accordingly, the time until each heliostat 10 is operated in response to the event becomes longer.
  • the execution cycle is short in order to appropriately correspond to the processing required state (that is, to quickly operate each heliostat 10 in response to the event).
  • the surface temperature of the heat receiving pipe 24 exceeds the threshold temperature, or the inside of the heat receiving pipe 24 That the air pressure of the solar power generator 20 exceeds the threshold pressure, that the amount of heat received by the heat receiver 20 changes abruptly (particularly decreases), or that the power generation target value of the solar thermal power generation facility 1 changes abruptly (particularly increases).
  • the cycle determination unit 122 sets the execution cycle to a relatively long time in the normal state, and sets the execution cycle to a relatively short time in the processing required state.
  • FIG. 9 is an explanatory diagram illustrating an example of operation timing of the solar thermal power generation facility 1.
  • the cycle determination unit 122 determines the execution cycle as a relatively long time p111, and the selection pattern acquisition unit 131 performs a heliostat selection calculation for each time p111.
  • the control signal generation unit 132 generates a control signal for each heliostat 10 according to the selection pattern, and the control signal transmission unit 133 A control signal is transmitted to each heliostat 10.
  • each heliostat 10 the drive controller 13 starts the operation
  • the operation is completed.
  • Each heliostat 10 is in a stationary state for a period of time p114 from the end of the operation until the operation is started again according to the control signal transmitted from the control signal transmission unit 133 next time.
  • the period determining unit 122 determines the execution period to be a relatively long time, so that each heliostat 10 stably radiates sunlight to the heat receiver 20, that is, The time for the heat receiver 20 to stably collect heat can be extended.
  • the cycle determination unit 122 determines the execution cycle at a relatively short time p121, and the selection pattern acquisition unit 131 calculates the next heliostat selection calculation after the time p121. It is carried out. Thereby, the selection pattern acquisition unit 131 starts the heliostat selection calculation corresponding to the event after a time p141 that is relatively short (particularly, shorter than the time p131 in FIG. 8) from the occurrence of the event. In this way, in the required processing state, the cycle determining unit 122 determines the execution cycle to be a relatively short time, so that each heliostat 10 can be operated quickly in response to the event and appropriately respond to the required processing state. Can do.
  • FIG. 10 is a timing chart showing an example of operation timing of the solar thermal power generation facility 1 in the example of FIG.
  • the cycle determination unit 122 determines the execution cycle as a relatively long time p111, and the selection pattern acquisition unit 131 performs a heliostat selection calculation for each time p111.
  • the selection pattern acquisition unit 131 first starts heliostat selection calculation at time t111.
  • the selection pattern acquisition unit 131 ends the heliostat selection calculation and acquires the selection pattern.
  • the control signal generation unit 132 generates a control signal for each heliostat 10 according to the selection pattern, and the control signal transmission unit 133 transmits the control signal to each heliostat 10.
  • the drive controller 13 starts an operation of changing the angle of the reflecting mirror 11 according to the control signal, and at time t113 after time p113 from the start of the operation, the angle of the reflecting mirror 11 is determined according to the control signal. The operation is completed as an angle.
  • each heliostat 10 is in a stationary state.
  • the period determining unit 122 determines the execution period to be a relatively long time, so that each heliostat 10 stably radiates sunlight to the heat receiver 20, and the heat receiver 20. Stably collects heat.
  • the cycle determination unit 122 determines the execution cycle to be a relatively short time p121, and the selection pattern acquisition unit 131 starts the time p121 from the time t121 when the previous heliostat selection calculation was started. At a later time t131, heliostat selection calculation corresponding to the event is started. When the time p112 elapses from the start of the heliostat selection calculation, the selection pattern acquisition unit 131 ends the heliostat selection calculation and acquires the selection pattern. Then, the control signal generation unit 132 generates a control signal for each heliostat 10 according to the selection pattern, and the control signal transmission unit 133 transmits the control signal to each heliostat 10.
  • the drive controller 13 starts an operation of changing the angle of the reflecting mirror 11 according to the current control signal, and at time t133 after time p113 from the start of the operation, the reflection is reflected.
  • the operation is completed by setting the angle of the mirror 11 to an angle corresponding to the control signal.
  • the cycle determining unit 122 determines the execution cycle to be a relatively short time, so that each heliostat 10 can be operated quickly in response to the event and appropriately respond to the required processing state. Can do.
  • the heat collection state of the heat receiver 20 is again in the normal state (that is, no new event has occurred after starting the heliostat selection calculation at time t132), and between time t133 and time p114.
  • Each heliostat 10 is in a stationary state and stably radiates sunlight to the heat receiver 20. Thereby, the heat receiver 20 collects heat stably.
  • FIG. 11 is a flowchart showing a processing procedure by which the heliostat control device 100 acquires a selection pattern.
  • the heliostat control device 100 starts the processing of FIG. 11 when the power supply is connected (ON) and becomes an operating state.
  • the weather information acquisition unit 111 acquires the direct solar radiation amount information detected by the direct solar radiation meter 40
  • the state information acquisition unit 112 acquires the state information of the heat receiver 20, and the upper level
  • the apparatus communication unit 113 acquires information indicating the amount of heat that the heat receiver 20 should supply (step S101).
  • the state determination part 121 determines the heat collection state of the heat receiver 20 based on each information which the weather information acquisition part 111, the state information acquisition part 112, and the high-order apparatus communication part 113 acquired in step S101 (step). S102). For example, the state determination unit 121 determines that the surface temperature of the heat receiving pipe 24 (FIG. 2) is equal to or higher than the threshold temperature, the air pressure in the heat receiving pipe 24 is equal to or higher than the threshold pressure, and the amount of decrease in the amount of direct solar radiation. When any one or more of the amount of change or the increase in the amount of heat to be supplied by the heat receiver 20 exceeds the threshold change amount is detected, the heat collection state of the heat receiver 20 is required. The processing state is determined. On the other hand, when none of the above is detected, the state determination unit 121 determines that the heat collection state of the heat receiver 20 is the normal state.
  • the cycle determination unit 122 When the state determination unit 121 determines that the heat collection state of the heat receiver 20 is the normal state (step S102: YES), the cycle determination unit 122 has a relatively long execution cycle based on the determination result of the state determination unit 121. Time is determined (for example, time p111 in FIG. 9), and the determined execution cycle is output to the heliostat control unit 130 (step S111).
  • the selection pattern acquisition unit 131 determines whether or not the start time of the heliostat selection calculation has arrived based on the execution cycle determined by the cycle determination unit 122 (that is, the execution cycle after starting the previous heliostat selection calculation). Whether or not has elapsed (step S131).
  • the selection pattern acquisition unit 131 performs the heliostat selection calculation to acquire the selection pattern, and generates the control signal for the obtained selection pattern.
  • the data is output to the unit 132 (step S141).
  • the selection pattern acquisition unit 131 performs simulation on 100 patterns among various ON / OFF patterns of the heliostat 10, selects the highest evaluation ON / OFF pattern as the selection pattern, and selects the control signal generation unit 132. Output to.
  • control signal generation unit 132 generates a control signal for each heliostat 10 based on the selection pattern acquired by the selection pattern acquisition unit 131 and outputs the control signal to the control signal transmission unit 133 (step S142). Then, the control signal transmission unit 133 transmits the control signal output from the control signal generation unit 132 to each heliostat 10 (step S143). Each heliostat 10 operates according to the control signal output from the control signal generator 132 (changes the angle of the reflecting mirror 11). Then, it returns to step S101.
  • step S102 determines in step S102 that the heat collection state of the heat receiver 20 is not a normal state (that is, a state requiring processing) (step S102: NO)
  • step S102: NO the cycle determination unit 122 Based on the determination result of the determination unit 121, the execution cycle is determined to be a relatively short time (for example, the time p121 in FIG. 9), and the determined execution cycle is output to the heliostat control unit 130 (step S121). Thereafter, the process proceeds to step S131.
  • the selection pattern acquisition part 131 determines that the start time of heliostat selection calculation has not come in step S131 (step S131: NO)
  • the cycle determination unit 122 changes the execution cycle according to the situation, so that the heliostat control unit 130 can perform ON / OFF control of each heliostat 10 at a cycle according to the situation. .
  • the solar thermal power generation equipment 1 can respond appropriately to the situation that changes from moment to moment, and can obtain a more appropriate amount of heat input and heat input distribution.
  • the period determining unit 122 determines the execution period to be a relatively long period, so that each heliostat 10 stably irradiates the heat receiver 20 with sunlight, That is, the time for the heat receiver 20 to stably collect heat can be extended.
  • the cycle determination unit 122 can determine the execution cycle to be a relatively short time, and can promptly operate each heliostat 10 in response to the event and appropriately respond to the processing required state. .
  • the cycle determining unit 122 determines the execution cycle to be a relatively short time, and therefore it is possible to appropriately cope with a situation that changes from moment to moment.
  • the period determination part 122 determines an execution period to comparatively long time, and each heliostat 10 irradiates sunlight stably with respect to the heat receiver 20, and more suitable heat input. And heat input distribution can be obtained.
  • the cycle determination unit 122 determines the execution cycle to be a relatively short time, and each heliostat 10 quickly changes the angle of the reflecting mirror 11 to an angle corresponding to the event. Appropriate heat input and heat input distribution can be obtained.
  • the cycle determination unit 122 may determine the execution cycle based on information other than the determination result of the state determination unit 121. For example, the period determining unit 122 sets the execution period to be relatively short in the morning and evening time periods when the change in the amount of sunlight irradiation is relatively large based on the time period, and the amount of sunlight irradiation is relatively stable. The execution period may be set relatively long during the daytime period. Thereby, the heliostat control part 130 can control a heliostat appropriately according to the change of sunlight irradiation amount.
  • the state determination unit 121 determines that the heat collection state of the solar thermal power generation facility 1 is a processing required state
  • the heliostat control unit 130 when the heliostat control unit 130 is executing a process for obtaining a selection pattern (ie, heliostat selection calculation), The heliostat control unit 130 may discard the data in the process and re-execute the process for obtaining the selection pattern. This point will be described with reference to FIGS.
  • FIG. 12 is an explanatory diagram illustrating an example of operation timing of the solar thermal power generation facility 1 when the heliostat control unit 130 re-executes the heliostat selection calculation in the processing required state.
  • the cycle determination unit 122 determines the execution cycle as the time p111, and the selection pattern acquisition unit 131 performs the heliostat selection calculation for each time p111.
  • the control signal generation unit 132 generates a control signal for each heliostat 10 according to the selection pattern, and the control signal transmission unit 133 transmits the control signal to each heliostat 10.
  • Each heliostat 10 changes the angle of the reflecting mirror 11 in accordance with the control signal.
  • the selection pattern acquisition unit 131 discards the data in the current heliostat selection calculation and responds to the event. Re-run the heliostat selection calculation.
  • the heliostat selection calculation started by the selection pattern acquisition unit 131 before the event occurs is not appropriate for the event. For example, when the state determination unit 121 detects that the surface temperature of the heat receiving tube 24 is equal to or higher than the threshold temperature and determines that the processing is required, the selection pattern acquisition unit 131 receives the determination result when the determination result is obtained.
  • a simulation is performed under the condition that the surface temperature of the heat pipe 24 is lower than the threshold temperature, and an evaluation value based on an evaluation standard that does not consider the surface temperature of the heat receiving pipe 24 for some of the ON / OFF patterns of the heliostat 10. It is possible that When the selection pattern acquisition unit 131 selects the ON / OFF pattern with the highest evaluation as the selection pattern based on the evaluation value, there is a possibility that the ON / OFF pattern that further increases the surface temperature of the heat receiving tube 24 is selected. high. Therefore, the selection pattern acquisition unit 131 discards the already obtained simulation evaluation result and newly performs simulation and evaluation under an evaluation criterion for reducing the surface temperature of the heat receiving tube 24. Thereby, the selection pattern acquisition part 131 can select the appropriate ON / OFF pattern according to the event as a selection pattern.
  • the control signal generation unit 132 When the selection pattern acquisition unit 131 acquires a selection pattern corresponding to an event, the control signal generation unit 132 generates a control signal for each heliostat 10 according to the selection pattern, and the control signal transmission unit 133 transmits the control signal to each heliostat. Send to Stat 10 Each heliostat 10 operates according to the control signal (adjusts the angle of the reflecting mirror 11).
  • FIG. 13 is a timing chart showing an example of operation timing of the solar thermal power generation facility 1 in the example of FIG.
  • the selection pattern acquisition unit 131 performs the heliostat selection calculation for each relatively long time (execution cycle) p111 as in the case of FIG. Then, the selection pattern acquisition unit 131 first starts the heliostat selection calculation at time t211 and ends the heliostat selection calculation and acquires the selection pattern when the time p112 elapses. Then, the control signal generation unit 132 generates a control signal for each heliostat 10 according to the selection pattern, and the control signal transmission unit 133 transmits the control signal to each heliostat 10.
  • the drive controller 13 starts an operation of changing the angle of the reflecting mirror 11 according to the control signal, and at time t213 after time p113 from the start of the operation, the angle of the reflecting mirror 11 is set according to the control signal. The operation is completed as an angle.
  • the selection pattern acquisition unit 131 discards the data of heliostat selection calculation started at time t221 and performs heliostat selection calculation according to the event, unlike the case of FIG. .
  • the selection pattern acquisition part 131 completes a heliostat selection calculation after the time p112, and acquires a selection pattern, and the control signal generation part 132 produces
  • the control signal transmission unit 133 transmits the control signal to each heliostat 10.
  • Each heliostat 10 starts operating at time t232 in accordance with the control signal and completes operation at time t233 when time p113 has elapsed.
  • each heliostat 10 is in a stationary state at time p114 until the drive controller 13 again operates based on the next control signal. In this state, each heliostat 10 stably irradiates sunlight to the heat receiver 20, and the heat receiver 20 stably collects heat.
  • FIG. 14 is a flowchart showing a processing procedure in which the heliostat control device 100 acquires the selection pattern when the heliostat control unit 130 re-executes the processing for obtaining the selection pattern in the processing required state.
  • the heliostat control device 100 starts the process of FIG. 14 when the power supply is connected and enters the operating state.
  • steps S201 to S202 are the same as steps S101 to S102 of FIG.
  • step S202 when the state determination unit 121 determines that the heat collection state of the heat receiver 20 is the normal state (step S202: YES), the selection pattern acquisition unit 131 performs a predetermined execution cycle (for example, in step S111 of FIG. 11). Based on the same time p111) as the period determined by the period determining unit 122, whether or not at least one of the start time of the heliostat selection calculation has arrived or the heliostat selection calculation is in progress is established. Determination is made (step S211).
  • the selection pattern acquisition unit 131 When it is determined that the start time of the heliostat selection calculation has arrived or is in the middle of the heliostat selection calculation (step S211: YES), the selection pattern acquisition unit 131 performs part of the heliostat selection calculation (step S21). S221). For example, when the selection pattern acquisition unit 131 performs simulation for 100 ON / OFF patterns in the heliostat selection calculation, the selection pattern acquisition unit 131 performs processing for one pattern in step S221 for 10 patterns of the 100 patterns. Perform a simulation. Here, when the simulation has already been executed for several ON / OFF patterns, the selection pattern acquisition unit 131 continues the simulation for 10 patterns among the remaining ON / OFF patterns.
  • the selection pattern acquisition unit 131 determines whether or not heliostat selection calculation has been completed (for example, whether or not simulation has been completed for all 100 ON / OFF patterns) (step S222). When it is determined that the heliostat selection calculation has been completed (step S222: YES), the process proceeds to step S241. Steps S241 and S242 are the same as steps S142 and S143 in FIG. After step S242, the process returns to step S201.
  • step S202 determines in step S202 that the heat collection state of the heat receiver 20 is not a normal state (that is, a processing-necessary state) (step S202: NO)
  • the selection pattern acquisition unit 131 A selection pattern is obtained by performing a heliostat selection calculation according to the event, and the obtained selection pattern is output to the control signal generation unit 132 (step S231).
  • the selection pattern acquisition unit 131 discards data such as a simulation evaluation value in the heliostat selection calculation when the heliostat selection calculation is already being executed.
  • the heliostat selection calculation is newly performed based on the latest weather information and state information obtained in step S201, information such as the target heat amount of the heat receiver 20, and the like.
  • step S241 the process proceeds to step S241.
  • step S211 when it is determined in step S211 that the start time of the heliostat selection calculation has not arrived and is not in the middle of the heliostat selection calculation (step S211: NO), the process returns to step S201. Moreover, also when it determines with not having completed heliostat selection calculation in step S222 (step S222: NO), it returns to step S201.
  • the heliostat control unit 130 (selection pattern acquisition unit 131) is executing a process for obtaining a selection pattern. If so, the data in the process is discarded and the process for obtaining the selection pattern is terminated (stopped). Thereby, the selection pattern acquisition part 131 can complete
  • the selection pattern acquisition part 131 newly performs the process which calculates
  • the selection pattern acquisition unit 131 starts the heliostat selection calculation at the time t131 when the time p141 has elapsed from the event occurrence time t19, and completes the heliostat selection calculation after the time p112 from the time t131. Rather than acquiring the pattern, the process from the event occurrence to the selection pattern acquisition is quicker. Since the selection pattern acquisition unit 131 acquires the selection pattern corresponding to the event more quickly, each heliostat 10 can quickly adjust the reflecting mirror 11 according to the angle corresponding to the event. Therefore, the solar thermal power generation facility 1 can respond to the event more quickly.
  • FIG. 15 is a timing chart showing an example of the operation timing of the solar thermal power generation facility 1 when the heliostat control unit 130 simplifies the heliostat selection calculation in the processing required state.
  • the cycle determination unit 122 determines the execution cycle as a relatively long time.
  • the simplification of the process for obtaining the selection pattern can be expected to have a greater effect when the time for which the selection pattern acquisition unit 131 performs the heliostat selection calculation (time p312 in the example of FIG. 15) is long. Therefore, in FIG. 15, the execution cycle of a relatively long time is a time p311 longer than the time p111 of FIG.
  • the selection pattern acquisition unit 131 performs a heliostat selection calculation every time p311 determined by the cycle determination unit 122.
  • the selection pattern acquisition unit 131 first starts the heliostat selection calculation at time t311, and ends the heliostat selection calculation when the time p312 elapses to acquire the selection pattern.
  • the control signal generation unit 132 generates a control signal for each heliostat 10 according to the selection pattern, and the control signal transmission unit 133 transmits the control signal to each heliostat 10.
  • the drive controller 13 starts an operation of changing the angle of the reflecting mirror 11 according to the control signal, and at time t313 after time p313 from the start of the operation, the angle of the reflecting mirror 11 is set according to the control signal. The operation is completed as an angle.
  • the cycle determination unit 122 determines the execution cycle to be a relatively short time p321, and the selection pattern acquisition unit 131 starts the time p321 from the time t321 when the previous heliostat selection calculation was started. At a later time t331, heliostat selection calculation corresponding to the event is started.
  • the selection pattern acquisition unit 131 ends the heliostat selection calculation and acquires the selection pattern. For example, at the time p312 in the normal state, the selection pattern acquisition unit 131 performs simulation on 150 ON / OFF patterns in the heliostat selection calculation, whereas at the time p342 in the processing required state, the selection pattern acquisition unit 131 In the heliostat selection calculation, 50 ON / OFF patterns are simulated. Then, according to the selection pattern acquired by the selection pattern acquisition unit 131, the control signal generation unit 132 generates a control signal for each heliostat 10, and the control signal transmission unit 133 transmits the control signal to each heliostat 10.
  • the selection pattern acquisition unit 131 acquires the selection pattern more quickly, and each heliostat 10 adjusts the angle of the reflecting mirror 11 according to the selection pattern, so that an accident can be prevented more reliably.
  • the selection pattern acquisition unit 131 quickly acquires a selection pattern that reduces the heat collection amount of the heat receiver 20, and each heliostat 10 responds to the selection pattern.
  • FIG. 16 is a flowchart showing a processing procedure in which the heliostat control device 100 acquires the selection pattern when the heliostat control unit 130 simplifies the heliostat selection calculation in the processing required state.
  • the heliostat control device 100 starts the processing of FIG. 16 when the power supply is connected and enters the operating state.
  • steps S301 to S311 are the same as steps S101 to S111 of FIG.
  • the selection pattern acquisition unit 131 determines the number of ON / OFF patterns (hereinafter referred to as “determination pattern”) to be simulated by heliostat selection calculation based on the state determination unit 121 determining that the state is the normal state in step S302.
  • a relatively large number is set (step S312).
  • the selection pattern acquisition unit 131 sets the number of determination patterns to 150 patterns.
  • Step S321 is the same as step S121 of FIG.
  • the selection pattern acquisition unit 131 sets the number of determination patterns to be relatively small based on the determination by the state determination unit 121 that the processing is required in step S302 (step S322). For example, the selection pattern acquisition unit 131 sets the number of determination patterns to 50 patterns. After step S322, the process proceeds to step S331.
  • Steps S331 to S343 are the same as steps S131 to S143 in FIG.
  • the selection pattern acquisition unit 131 performs heliostat selection calculation according to the number of determination patterns set in step S312 or step S322. That is, in the normal state, the selection pattern acquisition unit 131 performs simulation for a relatively large number of determination patterns (for example, 150 patterns), and acquires an ON / OFF pattern having the highest evaluation value as a selection pattern. On the other hand, in the processing required state, the selection pattern acquisition unit 131 performs simulation for a relatively small number of determination patterns (for example, 50 patterns), and acquires the ON / OFF pattern with the highest evaluation value as the selection pattern.
  • the selection pattern acquisition unit 131 sets the number of determination patterns to be relatively small and acquires the selection pattern more quickly, thereby preventing an accident more reliably. And if it will be in a normal state by execution of the said selection pattern, the selection pattern acquisition part 131 will set the number of selection patterns comparatively many, and will acquire a more accurate selection pattern.
  • Each heliostat 10 adjusts the angle of the reflecting mirror 11 according to this selection pattern, whereby a more appropriate heat input amount and heat input distribution can be obtained.
  • the method by which the selection pattern acquisition unit 131 switches the required time in the heliostat selection calculation is not limited to the method of switching the number of determination patterns.
  • the selection pattern acquisition unit 131 terminates the heliostat selection calculation when an ON / OFF pattern equal to or higher than a predetermined evaluation is acquired, and the evaluation criterion for ending this heliostat selection calculation is normally set in the processing required state. You may make it set loosely rather than a state.
  • the selection pattern acquisition unit 131 when the evaluation value of the ON / OFF pattern is smaller and the evaluation is higher, in the normal state, if the selection pattern acquisition unit 131 obtains an evaluation value of 100 or less, the evaluation value The heliostat selection calculation is terminated using the ON / OFF pattern as the selection pattern. On the other hand, in the processing-necessary state, if the selection pattern acquisition unit 131 obtains an evaluation value of 200 or less, the heliostat selection calculation is ended using the ON / OFF pattern of the evaluation value as the selection pattern. By setting the evaluation criteria gently in this way, the selection pattern acquisition unit 131 detects an ON / OFF pattern that satisfies the criteria relatively quickly (as compared to the normal state), and ends the heliostat selection calculation. be able to.
  • the selection pattern acquisition unit 131 sets the heliostat selection calculation time to a relatively long time (for example, time p312 in FIG. 15), and various ON / OFF of the heliostat 10 within this time. A simulation is performed on the pattern, and the ON / OFF pattern with the highest evaluation value is acquired as the selected pattern.
  • the selection pattern acquisition unit 131 sets the heliostat selection calculation time to a relatively short time (for example, time p342 in FIG. 15), and various ON / OFF of the heliostat 10 within this time.
  • a simulation is performed on the pattern, and the ON / OFF pattern with the highest evaluation value is acquired as the selected pattern.
  • the selection pattern acquisition unit 131 switches the required time in the heliostat selection calculation based on a criterion other than the number of determination patterns, an accident can be more reliably prevented as in the above, and the normal state More appropriate heat input and heat input distribution can be obtained.
  • the selection pattern acquisition unit 131 may re-execute the heliostat selection calculation and simplify the heliostat selection calculation in the processing required state. For example, in step S231 of FIG. 14, the selection pattern acquisition unit 131 determines a relatively small number of determination patterns (the number of patterns smaller than the number of patterns for which simulation is performed before step S221 is repeated to complete the heliostat selection calculation). A simulation is performed, and the ON / OFF pattern with the highest evaluation value is acquired as a selection pattern.
  • the selection pattern acquisition unit 131 re-executes the heliostat selection calculation and simplifies the heliostat selection calculation, so that the selection pattern acquisition unit 131 Furthermore, the selection pattern can be acquired quickly, and each heliostat 10 can quickly adjust the reflecting mirror 11 at an angle corresponding to the event according to the selection pattern. Therefore, the solar thermal power generation facility 1 can respond to the event more quickly.
  • the selection pattern is acquired in the required processing state.
  • the unit 131 may simplify the heliostat selection calculation. Also in this case, the selection pattern acquisition part 131 can acquire a selection pattern more rapidly by simplifying a heliostat selection calculation, and can prevent an accident more reliably. In addition, the selection pattern acquisition unit 131 simplifies the heliostat selection calculation, so that the load on the selection pattern acquisition unit 131 can be reduced.
  • the selection pattern acquisition unit 131 may determine whether to simplify the heliostat selection calculation based on information other than the determination result of the state determination unit 121. For example, in the daytime period when the sunlight irradiation amount is relatively stable, the selection pattern acquisition unit 131 turns on the current heliostat selection calculation based on the selection pattern obtained by the previous heliostat selection calculation. It may be determined whether to simplify the heliostat selection calculation based on the time zone, such as simplifying the heliostat selection calculation by narrowing down / OFF pattern candidates. Also in this case, the selection pattern acquisition unit 131 can acquire the selection pattern more quickly by simplifying the heliostat selection calculation, and the solar thermal power generation facility 1 finishes the operation of the heliostat more quickly. And can collect heat stably. In addition, the selection pattern acquisition unit 131 simplifies the heliostat selection calculation, so that the load on the selection pattern acquisition unit 131 can be reduced.
  • the heliostat control device 100 can be configured using a computer. Therefore, a program for realizing all or part of the functions of the heliostat control device 100 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed. You may process each part by.
  • the “computer system” includes an OS and hardware such as peripheral devices. Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
  • the “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM or a CD-ROM, and a hard disk incorporated in a computer system.
  • the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line.
  • a volatile memory in a computer system serving as a server or a client in that case and a program that holds a program for a certain period of time are also included.
  • the program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.
  • the solar heat collector of each embodiment according to the present invention is an example of a solar heat collector that integrally includes a heat receiver and a gas turbine unit that generates power using a working fluid heated by the heat receiver. I will explain.
  • the solar heat collecting apparatus 210 of 2nd embodiment which concerns on this invention is equipped with the casing 211 which accommodated the heat receiving device 213 with the opening part 212 for incident light inside, and the casing 211 in the upper part. And an arranged tower section (tower) 214.
  • the solar heat collecting apparatus 210 includes a plurality of heliostats 215 that are arranged around the tower portion 214 and reflect sunlight (solar solar radiation), and a drive control unit 216 that drives and controls the heliostat 215.
  • the solar heat collecting apparatus 210 includes a control unit 217 that gives a drive signal to the drive control unit 216.
  • the solar thermal collector 210 is a dry area in the subtropical high pressure zone where the direct solar radiation from the sun is strong and close to a good regression line. Therefore, the solar heat collector 210 will be described in particular as a single-sided power generation device that is disposed in a high latitude region in the subtropical high-pressure zone. This embodiment is an example in the northern hemisphere region.
  • the solar heat collector 210 reflects and collects sunlight irradiated to the heliostat field HF provided in the ground G toward the casing 211 by the heliostat 215 and receives heat by the heat receiver 213.
  • the tower portion 214 is disposed on one end side (south end portion in the north-south direction) of the heliostat field HF.
  • a gas turbine unit (GT) 220 is provided on the upper portion of the tower portion 214.
  • the heliostat 215 is the other end side (north side) in the heliostat field HF, and is set in a fan shape in a region of a predetermined angle range centering on the tower portion 214.
  • the plurality of heliostats 215 include a plurality of heliostats 222 that are distant from the casing 211 and a plurality of heliostats 223 that are close to the casing 211. In the southern hemisphere region, the arrangement direction of the tower portion 214 and the heliostat 215 is reversed.
  • the working fluid (for example, air) heated by the heat received by the heat receiver 213 is supplied to the gas turbine unit 220 and used for power generation.
  • the gas turbine unit 220 coaxially connects the compressor (not shown) that compresses the working fluid heated by the heat receiver 213, the turbine (not shown) that receives the working fluid compressed by the compressor, and the compressor and the turbine.
  • a rotor (not shown) and a generator (not shown) connected to the rotor are provided. Then, the solar heat collector 210 generates electric power by rotating the generator by rotating the rotor with the working fluid received by the turbine.
  • the drive control unit 216 moves the heliostats 222 and 223 when the heliostat is periodically replaced.
  • the drive control unit 216 includes a condensing position B1 where the reflected light from the heliostats 222 and 223 is collected in the opening 212, and a retreat position where the reflected light from the heliostats 222 and 223 escapes outside the casing 211.
  • the heliostats 222 and 223 are driven so as to be switched to B2.
  • the control unit 217 Based on the heat resistance strength of the casing 211 and the power consumption required to drive the heliostats 222 and 223, the control unit 217 distributes the paths followed by the reflected light of the heliostats 222 and 223 in a plurality of directions at the time of switching. Thus, the heliostats 222 and 223 are driven and controlled.
  • the heat resistance strength of the casing 211 and the power consumption required to drive the heliostats 222 and 223 are determined in advance and stored in the control unit 217.
  • the speed and moving direction of the heliostat can be determined so that the heat applied to the casing from the reflected light that escapes does not exceed the upper limit of the heat resistance strength. In addition, it is preferable to select one that requires less driving power at that time.
  • the control unit 217 controls the heliostats 222 and 223 under a constant posture change speed when driving and controlling the heliostats 222 and 223. That is, for the reflected light R11 that follows the path X11 along the longitudinal direction on the casing 211, the heliostat 222 that is far from the casing 211 is used. Therefore, the irradiation spot A11 is created by the reflected light R11 from the heliostat 222 that is a long distance from the casing 211. When the reflected light moves on the casing along the longitudinal direction of the casing, the casing receives a lot of reflected light (as an absolute amount), which is not preferable from the viewpoint of heat resistance of the casing. Therefore, it is evacuated promptly.
  • a heliostat 223 that is a short distance from the casing 211 is used for the reflected light R12 that follows the path X12 along the short direction on the casing 211. Therefore, the irradiation spot A12 is created by the reflected light R12 from the heliostat 223 at a short distance from the casing 211.
  • the casing will receive only a small amount of reflected light (as an absolute amount). There is no big problem. Therefore, it is not necessary to evacuate more quickly than necessary.
  • the heliostat 222 which becomes a long distance from the casing 211, or the heliostat 223 which becomes a short distance from the casing 211.
  • the irradiation spot A13 is created by the reflected light R13 from the heliostat 222 which is a long distance from the casing 211 or the heliostat 223 which is a short distance from the casing 211.
  • the spot moving speed is a value obtained by multiplying the distance from the heliostat 222 to the opening 212 by the angular velocity of the heliostat 222, and the distance from the heliostat 223 to the opening 212 is multiplied by the angular speed of the heliostat 223. Value.
  • the opening 212 that is, the heliostat 222 far away from the heat receiver 213 has a higher incidence and retraction speed than the heliostat 223 near the opening 212.
  • the incidence and retraction paths of the heliostats 222 and 223 are dispersed all around. Therefore, it is possible to prevent partial increase in temperature of the internal element of the heat receiver 213 and the casing 211 when the heliostat is replaced.
  • the switching is performed based on the heat resistance strength of the casing 211 and the power consumption required when driving the heliostats 222 and 223.
  • the heliostats 222 and 223 are driven and controlled so that the paths followed by the reflected light of the heliostats 222 and 223 are sometimes dispersed in a plurality of directions. Therefore, according to the operation method of the solar heat collecting apparatus 210, it is possible to prevent the partial increase in the temperature of the heat receiver 213 when the heliostat is replaced and to improve the quality.
  • the heliostat 222 that is a long distance from the casing 211 is used for the reflected light R11 that follows the path X11 along the longitudinal direction on the casing 211.
  • the heliostat 223 which becomes a short distance from the casing 211 is used about the reflected light R12 which follows the path
  • the path followed by the reflected light of the heliostat 222, 223 at the time of switching is based on the heat resistance strength of the casing 211 and the power consumption required to drive the heliostat 222, 223.
  • the heliostats 222 and 223 are controlled to be distributed in a plurality of directions. Therefore, according to the solar heat collecting apparatus 210, it is possible to prevent a partial increase in the temperature of the heat receiver 213 when the heliostat is replaced and to improve the quality.
  • the heliostat 222 that is a long distance from the casing 211 is used for the reflected light R11 that follows the path X11 along the longitudinal direction on the casing 211.
  • the heliostat 223 which becomes a short distance from the casing 211 is used about the reflected light R12 which follows the path
  • FIG. Therefore, according to the solar heat collecting apparatus 210, partial heat-up of the heat receiver 213 at the time of heliostat replacement can be prevented, and quality can be improved.
  • the control unit 217 performs the reflected light R14 of the heliostats 222 and 223 when the heliostat is periodically replaced.
  • the routes X14 and X15 followed by 15 are set on two axes, up, down, left and right.
  • the solar heat collecting apparatus 230 uses a heliostat 222 that is a long distance from the casing 211 for the reflected light R14 that follows the path X14 along the longitudinal direction on the casing 211. Therefore, the irradiation spot A14 is created by the reflected light R14 from the heliostat 222 that is a long distance from the casing 211.
  • the solar heat collector 230 uses a heliostat 223 that is a short distance from the casing 211 for the reflected light R15 that follows the path X15 along the short direction on the casing 211. For this reason, an irradiation spot A15 is created by the reflected light R15 from the heliostat 223 at a short distance from the casing 211.
  • the control unit 217 sets the paths X14 and X15 followed by the reflected lights R14 and 15 of the heliostats 222 and 223 as two axes, up, down, left, and right. . Therefore, according to the operation method of the solar heat collecting apparatus 230, the electric power used by each heliostat 222, 223 can be suppressed.
  • the control unit 217 sets the paths X14 and X15 followed by the reflected lights R14 and 15 of the heliostats 222 and 223 to the two axes, up, down, left, and right. Therefore, according to the solar heat collecting apparatus 230, the electric power used by each heliostat 222,223 can be suppressed.
  • the partial increase in temperature of the heat receiver when the heliostat is replaced is prevented, thereby improving the quality.
  • Can do it is possible to provide beneficial power generation using natural energy in consideration of the prevention of global warming and the suppression of the use of fossil fuel, and it can be said that the industrial applicability of this embodiment is great.
  • the present invention relates to a heliostat control method, a heliostat control device, and a heat collection facility.
  • ADVANTAGE OF THE INVENTION According to this invention, in the heat collecting equipment which selects and uses a required mirror, it can respond appropriately to the condition which changes every moment, and can obtain a more suitable heat input and heat input distribution.
  • TECHNICAL FIELD The present invention relates to a method for operating a solar heat collector that is applied to a solar thermal power plant or chemical plant and collects and uses solar thermal energy, and a solar heat collector.
  • ADVANTAGE OF THE INVENTION According to this invention, the partial high temperature of the heat receiver at the time of heliostat replacement
  • Period determination unit 130 ... Heliostat control unit 131 ... Selection pattern acquisition unit 132 ... Control signal generation unit 133 ... Control signal transmission unit 150 ... Host device 210 ... Solar thermal collector 211 ... casing 212 ... opening 213 ... heat receiver 214 ... tower (tower) 215 ... Heliostat 216 ... Drive controller 217 ... Controller 222 ... Heliostat 223 ... Heliostat 230 ... Solar heat collector

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

L'invention porte sur une unité de commande d'héliostat, laquelle unité obtient un motif de sélection qui est une combinaison de MARCHE/ARRET d'une pluralité d'héliostats sur la base d'au moins une information météorologique, et laquelle exécute périodiquement et de façon répétée un traitement de réalisation de la commande de MARCHE/ARRET de la pluralité d'héliostats en fonction du motif de sélection obtenu. Une unité de détermination de forme (une unité de détermination de période ou une unité d'acquisition de motif de sélection) détermine la forme d'exécution de l'unité de commande d'héliostat. L'unité de commande d'héliostat peut effectuer la commande de MARCHE/ARRET de chacun des héliostats sous la forme d'exécution correspondant à la situation, de façon à être ainsi apte à traiter de façon appropriée la situation qui varie d'heure en heure et à obtenir de façon plus appropriée une quantité d'entrée de chaleur et une distribution d'entrée de chaleur.
PCT/JP2012/077982 2011-10-31 2012-10-30 Procédé de commande d'héliostat, dispositif de commande d'héliostat, installation de collecte de chaleur, procédé pour faire fonctionner un dispositif de collecte de chaleur solaire et dispositif de collecte de chaleur solaire Ceased WO2013065667A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011-239724 2011-10-31
JP2011239073A JP2013096626A (ja) 2011-10-31 2011-10-31 太陽熱集熱装置における運転方法及び太陽熱集熱装置
JP2011-239073 2011-10-31
JP2011239724A JP2013096636A (ja) 2011-10-31 2011-10-31 ヘリオスタット制御方法、ヘリオスタット制御装置および集熱設備

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WO2013065667A1 true WO2013065667A1 (fr) 2013-05-10

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WO2014148259A1 (fr) * 2013-03-18 2014-09-25 バブコック日立株式会社 Système de collecte de chaleur solaire
CN120444762A (zh) * 2025-06-10 2025-08-08 烟台航空液压控制有限责任公司 一种基于温度控制的光热发电系统镜面追光角度控制系统及方法

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JP2003229594A (ja) * 2002-01-31 2003-08-15 Hideo Kawada ソーラーシステム可動架台による太陽電池の発電能力向上に関するカワタ式太陽追尾方法。
WO2010013632A1 (fr) * 2008-07-31 2010-02-04 コスモ石油株式会社 Procédé de collecte de lumière solaire dans un système de collecte de lumière du type à faisceau optique descendant (« beam-down ») à plusieurs tours
US20100139644A1 (en) * 2008-10-29 2010-06-10 Brightsource Industries (Israel), Ltd. Heliostat calibration
JP2011163594A (ja) * 2010-02-05 2011-08-25 Mitsubishi Heavy Ind Ltd 太陽熱受熱器の運転制御システムおよび運転制御方法
JP2011185558A (ja) * 2010-03-10 2011-09-22 Sharp Corp 太陽熱利用装置

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Publication number Priority date Publication date Assignee Title
JP2003229594A (ja) * 2002-01-31 2003-08-15 Hideo Kawada ソーラーシステム可動架台による太陽電池の発電能力向上に関するカワタ式太陽追尾方法。
WO2010013632A1 (fr) * 2008-07-31 2010-02-04 コスモ石油株式会社 Procédé de collecte de lumière solaire dans un système de collecte de lumière du type à faisceau optique descendant (« beam-down ») à plusieurs tours
US20100139644A1 (en) * 2008-10-29 2010-06-10 Brightsource Industries (Israel), Ltd. Heliostat calibration
JP2011163594A (ja) * 2010-02-05 2011-08-25 Mitsubishi Heavy Ind Ltd 太陽熱受熱器の運転制御システムおよび運転制御方法
JP2011185558A (ja) * 2010-03-10 2011-09-22 Sharp Corp 太陽熱利用装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014148259A1 (fr) * 2013-03-18 2014-09-25 バブコック日立株式会社 Système de collecte de chaleur solaire
JP6033405B2 (ja) * 2013-03-18 2016-11-30 三菱日立パワーシステムズ株式会社 太陽熱集熱システム
US9903613B2 (en) 2013-03-18 2018-02-27 Mitsubishi Hitachi Power Systems, Ltd. Solar heat collection system
CN120444762A (zh) * 2025-06-10 2025-08-08 烟台航空液压控制有限责任公司 一种基于温度控制的光热发电系统镜面追光角度控制系统及方法

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