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WO2014148165A1 - Procédé et dispositif de commande de fonctionnement de réseau d'énergie - Google Patents

Procédé et dispositif de commande de fonctionnement de réseau d'énergie Download PDF

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Publication number
WO2014148165A1
WO2014148165A1 PCT/JP2014/053452 JP2014053452W WO2014148165A1 WO 2014148165 A1 WO2014148165 A1 WO 2014148165A1 JP 2014053452 W JP2014053452 W JP 2014053452W WO 2014148165 A1 WO2014148165 A1 WO 2014148165A1
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WIPO (PCT)
Prior art keywords
heat
heat source
temperature
operation control
air conditioning
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/JP2014/053452
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English (en)
Japanese (ja)
Inventor
亮介 中村
勉 河村
白石　朋史
良和 石井
和信 森田
秀世 河野
寿一郎 渥美
隆 森知
雅史 坂齊
真紀子 市ヶ谷
理 國友
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Hitachi Ltd
Original Assignee
Hitachi Ltd
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Publication date
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Priority to MYPI2015702650A priority Critical patent/MY173213A/en
Publication of WO2014148165A1 publication Critical patent/WO2014148165A1/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
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states

Definitions

  • the present invention relates to a method and apparatus for performing optimum operation of heat source equipment in an energy network composed of a heat supply plant and a heat consumer such as a building.
  • FIG. 5 shows an example of a conventional general energy network configuration.
  • the energy network comprises a heat supply plant 1 and a plurality of heat consumers 15 such as buildings.
  • the heat supply plant may be any type of cooling and heating, but here a case of using water as a heat medium and supplying cold water will be described.
  • heat source equipment such as a plurality of refrigerators 2 and a water pump 3 are installed in the heat supply plant 1 on the side of supplying heat, and a plurality of heat demands of the chilled water 10 cooled by the respective refrigerators 2 Supply to the house 15 side.
  • the heat source equipment operation control device 13 is installed, and the heat source equipment operation control device 13 takes in the cold water water supply temperature, the cold water return temperature, etc. from the temperature detectors 6, 7
  • the operation control of the number of heat source devices such as the refrigerator 2 and the water pump 3 is performed.
  • the heat demander 15 is a building or the like, and heat is generally supplied from a heat supply plant to a plurality of buildings to constitute a district cooling and heating system or the like.
  • the customer 15 is provided with a heat exchanger 4 for receiving cold heat from the cold water 10 supplied from the heat supply plant 1, and the cold water 11 is supplied from the heat exchanger 4 to each air conditioner 5 via the water pump 8.
  • Each customer 15 arbitrarily sets the air conditioning set temperature 9 of each room, and supplies the air 12 heat-exchanged by the air conditioning equipment 5 to each room to perform cooling.
  • the customer 15 is provided with an air conditioning control device 14 for temperature control.
  • the air conditioning control device 14 generally has a portion for controlling the air conditioning of the entire building (or each floor of the building) and a portion for controlling the air conditioning of each room, and in FIG. The part of the apparatus which sets temperature 9 arbitrarily is shown.
  • the air conditioning of each room is performed by an indoor temperature control circuit provided on a wall or the like, and the temperature setting by the occupant is generally performed manually.
  • the cold water 10 warmed by the heat exchanger 4 at the customer 15 is returned to the heat supply plant 1, cooled again, and circulated and used between the customer 15 and the heat supply plant 1.
  • the system of the reception facility of the customer 15 who receives the thermal energy supplied from the heat supply plant 1 is an indirect connection system via the heat exchanger 4.
  • there are two types of direct connection methods as another method one is a direct connection method in which the heat medium (cold water, hot water, steam) to be supplied is used as it is in the air conditioner 5, and the other is supply It is a bleed-in system in which the forward heat transfer medium (cold water, hot water) and the return heat transfer medium from the air conditioner 5 are mixed.
  • FIG. 5 shows an example of the indirect connection method, it may be a direct connection method.
  • a plurality of heat source equipment are operated according to the heat demand on the demand side. It is carried out. Specifically, the number operation of the heat source equipment is determined from the heat quantity based on the water supply temperature, the return temperature and the water supply flow rate of the heat medium of the heat source equipment.
  • the necessary heat supply amount Q (W) is the water temperature Ts (° C.) of the cold water 10 sent from the heat supply plant 1, the return temperature Tr (° C.), the water flow rate W (m 3 / s) from the total refrigerator 2
  • the density w w (kg / m 3 ) of the cold water 10 and the specific heat C Pw (J / kg / ° C.) are used to calculate the equation (1).
  • Q w w C Pw W (TsTr) (1)
  • the amount of cold heat is represented by ( ⁇ Q).
  • the refrigerator is controlled so that the water supply temperature Ts becomes constant.
  • the return temperature Tr changes in the heat exchanger 4 according to the air-conditioning cold heat amount.
  • the flow rate is controlled by the flow control valve of the heat exchanger 4, and the water flow rate W changes. Therefore, the amount of cold heat (-Q) supplied from the refrigerator is automatically controlled to match the amount of cold air required by the customer.
  • FIG. 6 shows from the top the air conditioning set temperature Td of the customer, the air conditioning cold energy (-Q), the overall coefficient of performance (total COP: coefficient of performance) of the heat source device (refrigerator), the energy consumption of the heat source device (refrigerator) Is shown.
  • the horizontal axis shows the time of day. Further, the outside air temperature rises to a peak at, for example, noon (time T6 in FIG. 6), and thereafter decreases.
  • the room temperature Td of the topmost customer is generally constant (for example, 26 degrees).
  • the cold water water supply temperature Ts is assumed to be operated to maintain, for example, 7 degrees.
  • the solid line is the air conditioning cold heat amount at the reference temperature, which fluctuates due to the increase or decrease of the outside air temperature change.
  • the dimmed portion indicates the supplyable cold energy of the refrigerator.
  • the air conditioning cold heat amount increases due to the rise of the outside air temperature from time T1, the air conditioning cold heat amount coincides with the maximum heat supply amount of one refrigerator at time T2, and the outside air temperature rises thereafter.
  • cooling is insufficient in one refrigerator, and rising of cold water supply temperature or return temperature is detected, or air conditioning cold heat is compared with the maximum amount of heat supplied from the operating refrigerator.
  • the first refrigerator is activated.
  • a similar under-cooling condition also occurs at time T5, and the third refrigerator is activated.
  • the air-conditioning cold heat amount decreases.
  • the third refrigerator is stopped.
  • the second refrigerator is stopped.
  • the refrigerator is almost in the rated operation state, but in other time periods it is the partial load operation .
  • FIG. 4 shows an example of the energy consumption characteristic of the heat source equipment whose abscissa represents the load factor and the ordinate represents the coefficient of performance COP of one turbo refrigerator. According to this, assuming that the COP when the load factor is 100% is 6, when the load factor is 66.7%, the COP is about 5.4, and when the load factor is 50%, the COP is about 4.7 Show a tendency to
  • the overall COP shown in the third stage of FIG. 6 shows the result when the above operation control is carried out, and immediately after the stage increase of the refrigerator at time T2 and immediately before the stage decrease of the refrigerator at time T10, the refrigerator The load factor for one unit will be 50%, and the total COP will be about 4.7. Further, immediately after the stage increase of the refrigerator at time T5 and immediately before the stage reduction of the refrigerator at time T7, the load factor of one refrigerator is 66.7%, and the total COP is approximately 5.4.
  • turbo refrigerator is shown in FIG. 4 and FIG. 6, the same tendency is shown also in the case of other heat source devices such as an absorption type refrigerator and a heat pump.
  • the energy consumption efficiency of the heat source equipment changes with the load factor. Therefore, in the conventional heat source equipment operation, the heat source equipment operating according to the heat demand is shared with the heat demand and supplied, so that each heat source equipment is not operated at the highest efficiency condition, especially low In the case of operating at a load factor, the operating efficiency is lowered, so there is a problem that the energy saving and CO 2 emission reduction effects are smaller than in the case of operating at a high efficiency.
  • the present invention has been made in view of the problems of the prior art as described above, and in order to further reduce the energy consumption of the heat source equipment, while reducing the air conditioning heat demand of the customer within the set air conditioning temperature range, Provided is an operation control method and apparatus for an energy network that changes the air conditioning temperature of a customer so as to reduce the number of operating heat source devices or improve the operation efficiency.
  • the present invention is a method for controlling the operation of an energy network comprising a heat supply plant having a plurality of heat source devices and a plurality of heat consumers having a plurality of air conditioning facilities, the plurality of heat consumers
  • the set temperature of the air conditioner is variably set from the viewpoint of reducing the energy consumption of the heat source equipment of the heat supply plant, and on the heat supply plant side, the number of operating heat source equipment is controlled.
  • the present invention is an operation control apparatus of an energy network comprising a heat supply plant including a plurality of heat source devices, and a plurality of heat consumers including a plurality of air conditioners, Air conditioning measurement data input unit, room temperature upper limit / lower limit decision unit, air conditioning operation control plan unit and air conditioning operation command unit for control of heat consumers on multiple heat consumers
  • the temperature is set variably in terms of reducing the energy consumption of the heat source equipment of the heat supply plant, Heat source equipment measurement data input unit of heat supply plant, supplied heat quantity calculation unit, number-of-operations determination unit, heat source equipment operation control plan unit, and heat source equipment operation command unit for control on the heat supply plant side Control of the number of operating units
  • the figure which shows the structure of the energy network which concerns on a present Example The figure which shows the concrete apparatus structure of the control apparatus in a present Example.
  • the figure which shows an example of the energy consumption characteristic of a heat-source apparatus The figure which shows an example of a general energy network structure.
  • FIG. 1 shows the configuration of an energy network according to an embodiment of the present invention. Comparing FIG. 1 with the conventional energy network of FIG. 5, the configuration of the heat supply system 1 and the customer 15 remains unchanged.
  • a plurality of refrigerators 2 are installed in the heat supply plant 1, and the cold water 10 generated by each refrigerator is sent to each customer 15 by each water pump 3.
  • the customer 15 is provided with a heat exchanger 4 for receiving cold heat from the cold water 10 supplied from the heat supply plant, and the cold water 11 is sent from the heat exchanger 4 to each air conditioner 5.
  • the air 12 thus supplied is supplied to each room to perform cooling.
  • the system of the reception facility of the customer 15 who receives the heat energy supplied from the heat supply plant 1 is an indirect connection system via the heat exchanger 4.
  • direct connection methods there are two types of direct connection methods as another method, one is a direct connection method in which the heat medium (cold water, hot water, steam) to be supplied is used as it is in the air conditioner 5, and the other is supply It is a bleed-in system in which the forward heat transfer medium (cold water, hot water) and the return heat transfer medium from the air conditioner 5 are mixed.
  • FIG. 1 shows an example of the indirect connection method, it may be a direct connection method.
  • control device configurations for controlling the heat supply system 1 and the customer 15 are different.
  • a heat source equipment operation control device 13 for controlling the heat supply system 1 and an air conditioning-heat source equipment cooperation control device 20 for controlling the air conditioning control device 14 for controlling the customer 15 in association with each other are provided.
  • the heat source equipment operation control device 13, the air conditioning control device 14, and the air conditioning-heat source device cooperation control device 20 are connected by the information network 16 and share information.
  • the air conditioning-heat source equipment cooperation control device 20 includes an air conditioning-heat source equipment cooperation control planning unit 21, a heat source equipment operation control planning unit 221, and an air conditioning operation control planning unit 231. Controls the heat source operation control planning unit 221 and the air conditioning operation control planning unit 231 in cooperation with each other.
  • the heat source device measurement data input unit 222 acquires measurement data regarding the operating state of the heat source device 2 of the heat supply plant 1, the water pump 3 and the like. What is actually acquired is the supply temperature (cold water supply water temperature) Ts of the cold water 10 supplied from the heat supply plant, the return temperature Tr, the water supply flow rate W from all the refrigerators, the start / stop state of the heat source equipment 2 and the like.
  • the heat quantity calculation unit 223 of the heat source equipment operation control planning unit 221 performs the above (1) based on the water supply temperature Ts of the cold water 10 supplied from the heat supply plant 1, the return temperature Tr, and the water supply flow rate W from all the refrigerators.
  • the total cold demand (air conditioning cold heat) (-Q) is calculated by the equation.
  • the operation number determination unit 224 of the heat source device operation control planning unit 221 determines the operation number of heat source devices based on the total cold energy demand ( ⁇ Q).
  • ⁇ Q total cold energy demand
  • the supply and demand balance is determined by the comparison of -Q), and then the heat source equipment to be started or stopped is determined, and the number of units to be operated is set.
  • the heat source equipment operation control planning unit 221 judges from the balance of supply and demand by the change of the water supply temperature Ts or the comparison of the maximum cold heat of the heat source equipment and the total cold demand (-Q). Determine the time of increase of equipment.
  • the time of stage reduction of the heat source equipment is obtained by comparing the total maximum amount of cold heat from the operating heat source equipment when the stage reduction is performed and the predicted total cold energy demand ( ⁇ Q).
  • the heat source device operation command unit 225 instructs the heat source device whose heat source device control plan unit 221 decides to increase or decrease the stage to start and stop. put out.
  • the air conditioning measurement data input unit 232 on the air conditioning operation control planning unit 231 side acquires the operation information and the room temperature data of the air conditioner 5 from all the air conditioners 5 of the customers managed by itself.
  • the reference temperature, the allowable upper limit temperature, and the allowable lower limit temperature determination unit 233 set the reference temperature, the allowable upper limit temperature, and the allowable lower limit temperature based on the specifications and conditions of each room.
  • the air conditioning operation control plan unit 231 acquires operation data of each heat source facility, and controls the room temperature of each room in consideration of the air conditioning measurement data.
  • the air conditioning operation command unit 234 instructs each air conditioning control device 14 the air conditioning operation condition determined by the air conditioning operation control plan unit 231.
  • the heat source equipment operation control planning unit 221 and the air conditioning operation control planning unit 231 perform coordinated operation according to the command signal given by the air conditioning-heat source equipment cooperation control planning unit 21.
  • FIG. 7 shows a heat load model in a customer 15 such as a building.
  • a customer 15 such as a building.
  • many forms of heat are applied to the room 17 of the building.
  • Part of the heat applied to the room 17 of the building is from the outside, for example, ventilation heat of entry q V which enters the building by ventilation, window heat passing through the surface of the window by solar radiation q G , and the like wall throughflow heat q W caused by contact.
  • ventilation heat of entry q V which enters the building by ventilation
  • window heat passing through the surface of the window by solar radiation q G and the like wall throughflow heat q W caused by contact.
  • equipment heat generation q E emitted from equipment such as lighting and personal computer
  • human body heat generation q P emitted from the resident himself are examples of equipment heat generation q E emitted from equipment such as lighting and personal computer.
  • ⁇ C P V (dT / dt) on the left side is the rate of change in heat of the building room 17
  • ⁇ is the air density (kg / m 3 )
  • C P is the specific heat of air (J / kg / C)
  • V is the volume of the room (m 3 )
  • dT / dt represents the temperature change per unit time.
  • q A when the value of q A is positive, it means heating, and when it is negative, it means cooling.
  • Equation (3) is obtained by modifying equation (2).
  • T i T i * + ( ⁇ k q ki * + q Ai * ) ⁇ t / ⁇ C P V i (3)
  • symbol i means any room
  • * means the value before ⁇ t.
  • the heat quantity Q to be supplied by the heat source plant is the sum of the air conditioning heat loads q Ai of all rooms of a plurality of consumers.
  • ⁇ k q ki and q Ai use values before ⁇ t in equation (3), they may be calculated using values after ⁇ t.
  • Q ⁇ i q Ai (4 )
  • the size of q Ai is, for example, distributed in proportion to the volume V of each room or the total ⁇ k q k of the heat load of the room.
  • FIG. 3 shows the state of each part when the operation of the present invention is carried out, the above-mentioned idea is clearly shown.
  • the state of each part in FIG. 3 indicates the air conditioning set temperature Td, the air conditioning cold heat amount (-Q), the overall coefficient of performance COP, and the consumption energy of the heat source equipment in order from the top.
  • Td the air conditioning set temperature
  • -Q the air conditioning cold heat amount
  • COP the overall coefficient of performance COP
  • consumption energy of the heat source equipment in order from the top.
  • the air conditioning equipment and operation method of all rooms are the same.
  • the reference temperature and the allowable lower limit temperature are 26 ° C.
  • the allowable upper limit temperature is 28 ° C.
  • the air conditioning set temperature is controlled within this temperature range so as to reduce the energy consumption of the refrigerator.
  • an air conditioner and one refrigerator in each room are started from time T1, and the air conditioning set temperature is a reference temperature (26 ° C.).
  • the air-conditioning cold energy increases with the rise of the outside air temperature, and at time T2, the air-conditioning cold energy reaches the maximum cold energy of one refrigerator.
  • the number of refrigerators is increased to two at time T2, whereas in method A, which is the present embodiment, the air-conditioning cold heat is maintained at the maximum cold heat of one refrigerator to increase the number of refrigerators
  • the air conditioning set temperature is increased.
  • the air conditioning set temperature reaches the allowable upper limit temperature (28 ° C.) at time T3, the number of refrigerators is increased to two. From time T3 to T4, the air-conditioning set temperature is decreased to the reference temperature by maintaining the air-conditioning cold heat amount as the maximum cold heat amount of the two refrigerators. At time T4 to T5, the air conditioning set temperature is maintained at the reference temperature, and at time T5, the air conditioning cold heat amount reaches the maximum cold heat amount of two refrigerators. From time T5 to T7, the air conditioning set temperature is increased in order to maintain the air conditioning cold heat amount as the maximum cold heat amount of the two refrigerators to suppress an increase in the number of stages of the refrigerator.
  • the outside air temperature decreases at time T6, and the air-conditioning cold heat amount also starts to decrease.
  • the air conditioning cold energy is maintained at the maximum cold energy of the two refrigerators to lower the air conditioning set temperature to the reference temperature.
  • the room temperature is maintained at the reference temperature from time T8.
  • the air conditioning cold heat is maintained at the maximum cold heat of one refrigerator to increase the air conditioning set temperature.
  • the air conditioning cold energy is maintained at the maximum cold energy of one refrigerator to lower the air conditioning set temperature.
  • time T11 to T12 if the air conditioning set temperature is maintained at the reference temperature, the amount of heat generated by the air conditioning decreases with the passage of time, and the operation of the air conditioner and the refrigerator is stopped at time T12.
  • the air conditioning set temperature is the reference temperature in each of the time periods T1 to T2, T4 to T5, T8 to T9, and T11 to T12
  • the air conditioning cold heat is the maximum of the activated refrigerator It is smaller than the amount of cold heat, and the refrigerator is in a state of partial load operation. Therefore, the total COP is smaller than the maximum COP (6).
  • the total COP becomes maximum COP (6).
  • the energy consumption of the refrigerator is reduced compared to the conventional method. ing.
  • the energy consumption of the refrigerator is increased as compared with the conventional method.
  • the required air conditioning cold energy is smaller because the air conditioning set temperature is higher in method A than in the conventional method, and the total COP of the refrigerator is high. The total energy consumption of the aircraft is reduced.
  • the total energy consumption of the refrigerator is smaller in the method A than in the conventional method.
  • FIG. 3 is also illustrated on the premise.
  • the heat source equipment should be increased from one to two in the conventional method, and in the present invention, operation is performed by controlling the room temperature Td within a predetermined upper and lower temperature range. It is possible to suppress an increase in the number of heat source devices inside.
  • the increase can be suppressed by controlling the room temperature at or below the upper limit temperature so as to be equal to or less than the maximum cold heat supply amount of the heat source device in operation.
  • the maximum cold heat supply amount of the heat source apparatus after the stage reduction at time T9 in FIG. Step-down can be promoted by controlling the room temperature below the upper limit temperature.
  • the temperature increase is controlled by controlling the room temperature above the lower limit temperature so as to be equal to or less than the maximum heat supply of the operating heat source equipment. can do.
  • promote the reduction by controlling the room temperature above the lower limit temperature so as to be equal to or less than the maximum heat supply of the heat source equipment after the stage reduction. be able to.
  • the concept of control in the operation control device of the energy network of the present invention is shown.
  • the preset temperature Td of each room reaches the upper limit temperature at time T3 in FIG. 3
  • the heat source equipment for generating cold water is increased to be equal to or less than the maximum cooling heat supply amount of the heat source equipment in operation at time T3 to T4.
  • the set temperature Td of each room is lowered to the reference temperature.
  • the set temperature Td of each room reaches the lower limit temperature in the scene of time T3 in FIG.
  • the set temperature Td of each room is raised to the reference temperature so as to be equal to or less than the maximum heat supply amount of the heat source device in operation in the time zone corresponding to the time T3 to T4.
  • the set temperature of each room is set to be equal to or less than the maximum cooling energy supply amount of the heat source device generating cold water in operation T10 to T11. Decrease Td to the reference temperature.
  • the set temperature Td of each room reaches the lower limit temperature in the scene of time T10 in FIG. 3 and therefore the time corresponding to the subsequent times T10 to T11
  • the set temperature Td of each room is raised to the reference temperature so as to be equal to or less than the maximum heat supply amount of the heat source device in operation in the zone.
  • the air conditioning thermal load can be reduced by changing the air conditioning set temperature within the allowable temperature range, and the heat source equipment increase suppression and reduction in stages are promoted. Energy consumption can be reduced by minimizing the number of operating heat source devices.
  • the reference temperature, the upper limit, and the lower limit temperature of the air conditioning are determined based on the comfort index.
  • the necessary heat amount is preferentially supplied (load distribution) to the special circumstances such as a hospital, and the remaining equipment may perform variable setting according to the heat demand.
  • PMV Predicted Mean Vote
  • ISO7730 2005, Ergonomics of the thermal environment-Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria
  • FIG. 8 shows an overview of the comfort index PMV.
  • room temperature ta room temperature ta
  • humidity rh radiation temperature tr
  • room air velocity vs room air velocity vs
  • metabolic rate M dressing amount Icl.
  • a constant value is usually set and input for the wind speed vs, the metabolic amount M, and the dressing amount Icl in the room.
  • measured values are used for the room temperature ta and the humidity rh.
  • the radiation temperature tr is evaluated based on the measurement value of the glove thermometer, but there is also a method of evaluating it using an indoor air conditioning temperature analysis.
  • L (MW) EdEsEreCreR-C
  • M a metabolic rate
  • W a mechanical work amount
  • Ed an insensitive steaming amount
  • Es an evaporation heat loss amount by perspiration
  • Ere is a latent heat loss amount by respiration
  • Cre is a sensible heat loss amount by respiration
  • R is The amount of radiant heat loss
  • C indicates the amount of convective heat loss.
  • the method B which is air conditioning-heat source equipment cooperation control using PMV which is one example of the present invention is explained below.
  • the basic control method of method B is the same as method A shown in FIG. 3, but when evaluating the reference temperature, the allowable upper limit temperature, and the allowable lower limit temperature, evaluation is performed using PMV, and the reference temperature, the allowable upper limit Temperature and allowable lower limit temperature change with time depending on conditions.
  • the air-conditioning cold energy increases with the rise of the outside air temperature, and at time T2, the air-conditioning cold energy reaches the maximum cold energy of one refrigerator.
  • the number of refrigerators is increased to two at time T2
  • the air-conditioning cold energy is the maximum of one refrigerator
  • the air conditioning set temperature is increased in order to maintain the amount of cold heat and to suppress an increase in the number of stages of the refrigerator.
  • the outside air temperature decreases at time T6, and the air-conditioning cold heat amount also starts to decrease.
  • the air conditioning cold energy is maintained at the maximum cold energy of the two refrigerators to lower the air conditioning set temperature to the reference temperature.
  • the room temperature is maintained at the reference temperature from time T8.
  • the air conditioning cold heat is maintained at the maximum cold heat of one refrigerator to increase the air conditioning set temperature.
  • the air conditioning cold energy is maintained at the maximum cold energy of one refrigerator to lower the air conditioning set temperature.
  • time T11 to T12 if the air conditioning set temperature is maintained at the reference temperature, the amount of heat generated by the air conditioning decreases with the passage of time, and the operation of the air conditioner and the refrigerator is stopped at time T12.
  • the air conditioning set temperature is the reference temperature, so the air conditioning cold heat is smaller than the maximum cold heat of the activated refrigerator, The machine is in partial load operation. Therefore, the total COP is smaller than the maximum COP (6).
  • the total COP becomes maximum COP (6).
  • the energy consumption of the refrigerator decreases compared to the method C. ing.
  • the energy consumption of the refrigerator decreases compared to the method C.
  • the required air conditioning cold heat is small because the air conditioning set temperature is higher in method B than in method C, and furthermore, since the total COP of the refrigerator is high, refrigeration at time T2 to T4 The total energy consumption of the aircraft is reduced.
  • the total energy consumption of the refrigerator is smaller in method B than in method C.
  • the room temperature is controlled at a constant value, so the room tends to be too cold and energy consumption tends to be large.
  • the reference temperature is calculated at each time using the comfort index PMV, an appropriate air conditioning set temperature is obtained, and the average temperature is higher than in the conventional method. Energy can be reduced.
  • a heat source equipment operation control planning unit comprising a heat source equipment measurement data input unit, a heat supply quantity calculation unit, an operation quantity determination unit and a heat source equipment operation command unit, an air conditioning measurement data input unit for a heat consumer
  • An air conditioning-heat source equipment cooperation control device comprising an air conditioning control planning unit having a reference temperature, an allowable upper limit temperature, an allowable lower limit temperature determination unit and an air conditioning operation command unit, and an air conditioning-heat source equipment cooperation control planning unit linking these Information on the operating state of the heat source equipment of the supply plant is taken in, and the set temperature of each room is controlled so as to reduce the energy consumption of each heat source equipment.
  • the present invention can provide an optimum operation method and apparatus of a heat supply facility which realizes reduction of CO 2 emissions.
  • SYMBOLS 1 Heat supply plant, 2 ... Refrigerator, 3 ... Water pump of a refrigerator, 4 ... Heat exchanger of a demander, 5 ... Air conditioning equipment of a demander, 6 ... Cold water water temperature, 7 ... Cold water return temperature, 8 ... Water exchanger pump of heat exchanger, 9 ... Air conditioning set temperature, 10 ... Cold water from heat source equipment, 11 ... Cold water of heat exchanger, 12 ... Air from air conditioning equipment, 13 ... Heat source equipment operation control device, 14 ... Air conditioning control device , 15 ... consumer, 16 ... information network, 17 ... room

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention se rapporte à un procédé et à un dispositif de commande de fonctionnement de réseau d'énergie qui modifient la température de conditionnement d'air côté utilisateur afin de réduire davantage la consommation d'énergie d'un dispositif de source de chaleur de telle sorte que, tout en réduisant la demande de chaleur de conditionnement d'air du client à une plage de températures de conditionnement d'air qui est déterminée en prenant en compte le confort, le nombre de dispositifs de source de chaleur soit réduit ou que l'efficacité fonctionnelle de ces derniers soit améliorée. Un procédé de commande de fonctionnement d'un réseau d'énergie qui comprend une pluralité de consommateurs de chaleur équipés d'une pluralité d'appareils de conditionnement d'air, et une installation de fourniture de chaleur comprenant une pluralité de dispositifs de source de chaleur, est caractérisé en ce que la température déterminée pour un appareil de conditionnement d'air est variable du côté de la pluralité de consommateurs de chaleur du point de vue de la baisse de la consommation d'énergie des dispositifs de source de chaleur de l'installation de fourniture de chaleur, et le nombre de dispositifs de source de chaleur en fonctionnement de la pluralité de dispositifs de source de chaleur est régulé du côté de l'installation de fourniture de chaleur.
PCT/JP2014/053452 2013-03-19 2014-02-14 Procédé et dispositif de commande de fonctionnement de réseau d'énergie Ceased WO2014148165A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MYPI2015702650A MY173213A (en) 2013-03-19 2014-02-14 Energy network operation control method and device

Applications Claiming Priority (2)

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JP2013-056105 2013-03-19
JP2013056105A JP6060014B2 (ja) 2013-03-19 2013-03-19 エネルギーネットワークの運転制御方法および装置

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Publication number Priority date Publication date Assignee Title
EP3637217A1 (fr) * 2018-10-08 2020-04-15 E.ON Sverige AB Procédé pour commander un système de distribution d'énergie thermique
CN111503842B (zh) * 2020-04-29 2021-08-31 四川虹美智能科技有限公司 多联机空调的控制方法、控制装置、控制系统和可读介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06288595A (ja) * 1992-05-08 1994-10-11 Matsushita Electric Ind Co Ltd 空気調和機の室内温度設定装置
JP2003139372A (ja) * 2001-11-02 2003-05-14 Ohbayashi Corp 空調・熱源設備最適抑制制御システム
JP2008292043A (ja) * 2007-05-23 2008-12-04 Hitachi Plant Technologies Ltd 空調システム
JP2009127936A (ja) * 2007-11-22 2009-06-11 Yamatake Corp 熱源機の台数制御装置および熱源機の台数制御方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06288595A (ja) * 1992-05-08 1994-10-11 Matsushita Electric Ind Co Ltd 空気調和機の室内温度設定装置
JP2003139372A (ja) * 2001-11-02 2003-05-14 Ohbayashi Corp 空調・熱源設備最適抑制制御システム
JP2008292043A (ja) * 2007-05-23 2008-12-04 Hitachi Plant Technologies Ltd 空調システム
JP2009127936A (ja) * 2007-11-22 2009-06-11 Yamatake Corp 熱源機の台数制御装置および熱源機の台数制御方法

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