WO2013065492A1 - Solar heat turbine electricity generation device and control method therefor - Google Patents

Abstract

Provided is a solar heat turbine electricity generation device with which heat can be collected effectively even when the solar radiation intensity is large, as in the daytime, for example. This solar heat turbine electricity generation device (1) is equipped with: multiple heliostats (10, 11) for which the reflection angle at which sunlight is reflected can be changed; heat receivers in which the sunlight reflected by the heliostats (10, 11) is collected; and turbine electrical generators (13, 17) which are driven by the heat obtained with the heat receivers, thereby generating electricity. The heat receivers include a first heat receiver (7) and a second heat receiver (9). When the amount of heat collected by the first heat receiver (7) reaches a desired value, the sunlight from the surplus heliostats (11) which have not collected sunlight in the first heat receiver (7) is collected by the second heat receiver (9).

Description

Solar thermal turbine generator and control method thereof

The present invention relates to a solar thermal power generator and a control method thereof.

As one of power generation apparatuses using sunlight, a solar thermal turbine power generation apparatus that generates power by driving a turbine with a compressive fluid such as air heated by the heat of sunlight is known.
Such a solar heat turbine power generator is disclosed in, for example, Patent Document 1 below, and compresses air to increase the pressure, and receives heat to raise the temperature by heating the compressed air with heat converted from sunlight. A gas turbine driven by air heated to high temperature and pressure, and a steam turbine driven by steam generated using exhaust heat of the gas turbine.

In this document, a solar heat steam generator is arranged upstream of the steam turbine so that power generation by the steam turbine is possible, and steam can be generated by the solar heat steam generator by the heat collected by the condenser. Yes. Thereby, even if the solar radiation intensity is reduced and the operation of the gas turbine is stopped and the steam cannot be generated by the exhaust heat of the gas turbine, the steam turbine can be driven by generating steam with the solar heat steam generator.

JP 2010-285965 A

However, the said patent document 1 improves the thermal efficiency when solar radiation intensity | strength falls.
On the other hand, when the solar radiation intensity is high (near the middle and middle hours), there are the following problems that are not disclosed in Patent Document 1.
That is, in general, in solar thermal power generation, the amount of heat necessary for the system is collected throughout the day, and therefore it is necessary to design the system in accordance with the time when the solar radiation intensity is low (the solar altitude is low) in the morning. This is because if the system is designed for a time when the solar radiation intensity is high, the working fluid can be heated to a desired temperature with a heat receiver at a time when the solar radiation intensity is high, but the amount of heat received is small at a time when the solar radiation intensity is low. This is because the working fluid cannot be heated to a desired temperature. Therefore, it is necessary to design the heat receiver according to the time when the solar radiation intensity is low, but at the time when the solar radiation intensity is large, the heat exchanger that constitutes the heat receiver is designed to collect heat more than necessary. I can't. Therefore, in actual operation, at a time when the solar radiation intensity is high, the reflection angle of some heliostats is changed so as not to be condensed by the heat receiver. This means that at times when the solar radiation intensity is high, there is a heliostat that can be used, but it is not used as an extra heliostat, and the system must be operated with a reduced operating rate. There's a problem.

The present invention has been made in view of such circumstances, and provides a solar turbine power generation apparatus capable of effectively collecting heat even when the solar radiation intensity is high, such as in the daytime, and a control method thereof. The purpose is to do.

In order to solve the above-described problems, the solar thermal power generation apparatus and the control method thereof according to the present invention employ the following means.
That is, the solar thermal power generation apparatus according to the first aspect of the present invention includes a plurality of reflectors whose reflection angles for reflecting sunlight can be changed, and sunlight reflected by these reflectors. And a turbine generator that generates power by being driven by the heat obtained by the heat receiver, the heat receiver includes a first heat receiver and a second heat receiver. And when the amount of heat collected on the first heat receiver reaches a desired value, the surplus reflector, which is the other reflector that does not collect sunlight on the first heat receiver, The control part which adjusts the said reflection angle so that it may condense on a 2nd heat receiver is provided.

When the amount of heat collected on the first heat receiver reaches a desired value (for example, the design heat amount during rated operation), the surplus reflector is another reflector that does not collect sunlight on the first heat receiver. Exists. In the present invention, the reflection angle of these surplus reflectors is adjusted and condensed on the second heat receiver. As a result, the solar heat energy that could not be used because it could not be concentrated on the first heat receiver could be used without waste in the second heat receiver, and it was able to collect heat effectively even in the vicinity of the south and middle hours when solar radiation was strong. can do.

Furthermore, in the solar thermal power generation apparatus according to the first aspect, the turbine generator generates heat from the gas turbine driven by the gas heated by the first heat receiver and the exhaust gas exhausted from the gas turbine. An exhaust gas boiler that generates steam by collecting steam, a steam generator that generates steam by the heat obtained by the second heat receiver, and a steam led from the exhaust gas boiler and / or the steam generator And a driven steam turbine.

A gas (for example, air) is heated by the first heat receiver to drive the gas turbine to generate power, and the steam turbine is driven by steam guided from the exhaust gas boiler using the exhaust gas exhausted from the gas turbine to generate power. By doing so, highly efficient combined power generation is realized. In the present invention, a steam generator that generates steam by the heat obtained by the second heat receiver is further provided to drive the steam turbine. Thereby, it is possible to generate electricity by effectively using the heat obtained by the second heat receiver in the steam turbine.

Furthermore, the solar thermal turbine power generator according to the first aspect may have a heat storage means for storing heat obtained by the second heat receiver.

The heat obtained by the second heat receiver is stored by the heat storage means. As a result, heat is stored while the light is condensed by the second heat receiver, and power can be generated using heat storage, for example, when solar radiation is reduced and the amount of power generation is reduced, or at night when there is no solar radiation. Therefore, a high operating rate can be realized regardless of the intensity of solar radiation and the presence or absence thereof.
The heat storage means includes, for example, a molten salt (for example, a mixed salt of sodium nitrate and potassium nitrate) and a storage tank for storing the molten salt.

Furthermore, in the solar turbine power generator according to the first aspect, the control unit generates the steam by the heat stored in the heat storage means when the amount of steam from the exhaust gas boiler becomes a predetermined value or less. The steam turbine may be configured to drive the steam turbine by generating steam.

When the solar altitude decreases and the amount of solar radiation decreases, the amount of heat obtained by the first heat receiver decreases, the output of the gas turbine decreases, and the amount of steam from the exhaust gas boiler decreases. In the present invention, even in such a case, or even when there is no solar radiation and no steam is generated from the exhaust gas boiler, for example, at night, the steam generator is used by the heat stored in the heat storage means. It can be operated to generate steam, and power generation operation can be performed for a long time.

Furthermore, in the solar thermal power generation apparatus according to the first aspect, the first heat receiver and the second heat receiver are provided in an upper portion of a tower that is erected in the vertical direction, and a plurality of the reflections are provided around the tower. A first condensing region provided with a vessel, and a second collector in which only the first heat receiver is provided on an upper portion of a tower standing in a vertical direction, and a plurality of reflectors are provided around the tower. A plurality of second condensing regions are provided so as to surround the first condensing region, and the control unit supplies the surplus reflector of the first condensing region to the second heat receiver. In addition, it may be configured such that the excessive reflector in each of the second condensing regions is condensed on the second heat receiver.

When the amount of heat collected on the first heat receiver reaches a desired value, the number of excess reflectors that do not collect sunlight on the first heat receiver is designed in consideration of the operating rate. Not so much. Therefore, in the present invention, in addition to the first heat receiver, the second heat receiver is installed only in the first light collection region, and the second heat receiver is not provided in the second light collection region surrounding the first light collection region. Only the first heat receiver was provided. Thereby, the sunlight reflected from the surplus reflector is collectively collected by the 2nd heat receiving device provided in the 1st condensing area located in the center. Therefore, the amount of heat received in the second heat receiver increases, and the heat received in the second heat receiver is efficiently performed more efficiently.
In addition, since the second light collection region is arranged so as to surround the first light collection region, it is easy to direct the surplus reflector of the second light collection region to the second heat receiver of the first light collection region. Become.

Moreover, the control method of the solar thermal turbine power generation device according to the second aspect of the present invention includes a plurality of reflectors whose reflection angles reflecting sunlight can be changed, and sunlight reflected by these reflectors. In a control method of a solar thermal turbine power generation apparatus including a heat receiver that is condensed and a turbine generator that is driven by the heat obtained by the heat receiver to generate electric power, the heat receiver includes: a first heat receiver; A second heat receiver, and when the amount of heat collected on the first heat receiver reaches a desired value, the other heat reflector does not collect sunlight on the first heat receiver. The reflection angle is adjusted so that the surplus reflector is condensed on the second heat receiver.

When the amount of heat collected on the first heat receiver reaches a desired value (for example, the design heat amount during rated operation), the surplus reflector is another reflector that does not collect sunlight on the first heat receiver. Exists. In the present invention, the reflection angle of these surplus reflectors is adjusted and condensed on the second heat receiver. As a result, the solar heat energy that could not be used because it could not be concentrated on the first heat receiver could be used without waste in the second heat receiver, and it was able to collect heat effectively even in the vicinity of the south and middle hours when the solar radiation was strong. can do.

When the amount of heat collected on the first heat receiver reaches a desired value, the reflection angle of the surplus reflector that does not collect sunlight on the first heat receiver is adjusted, and the light is collected on the second heat receiver. As a result, the solar heat energy that could not be used because it could not be condensed on the first heat receiver could be used without waste in the second heat receiver, and it would be effective even in the vicinity of the south and central hours when the solar radiation is strong. Can collect heat.
In addition, since the heat obtained by the second heat receiver is stored by the heat storage means, heat is stored while it is condensed by the second heat receiver, for example, the solar radiation is reduced and the power generation amount is reduced. If it does, or at night when there is no solar radiation, it can generate electricity using heat storage. Therefore, a high operating rate can be realized regardless of the intensity of solar radiation and the presence or absence thereof.

It is the top view which showed the outline of the solar-turbine power generator concerning one Embodiment of this invention. It is the top view which showed the helio field of FIG. It is the schematic block diagram which mainly showed the structure of the 1st helio field of FIG. It is the schematic block diagram which showed typically the connection state of the 1st helio field of FIG. 1, and the 2nd helio field.

Hereinafter, an embodiment of the solar turbine generator of the present invention will be described with reference to FIGS. 1 to 4.
FIG. 1 shows the overall configuration of a solar turbine generator 1. The solar turbine generator 1 includes a first heliofield (first power generation region) 3a located in the center and a plurality of second heliofields (second power generation regions) 3b arranged so as to surround the first heliofield 3a. And. The number of the second helio field 3b is six in the embodiment shown in the figure, but the number is not particularly limited in the present invention. However, as shown in the figure, it is preferable to provide the first heliofield 3a so as to surround each other so as to surround the first heliofield 3a.

Each heliofield 3a, 3b is a circular area in the present embodiment, and includes a tower 5 at substantially the center as shown in FIG. The tower 5 is erected in a vertical direction from the ground, and heat receivers 7 and 9 are provided on the top thereof (see FIGS. 3 and 4).

A plurality of heliostats (reflectors) 10 are installed in each heliofield 3a, 3b. The heliostats 10 are arranged in an aligned state so as to form a concentric circle with the tower 5 as the center. The attitude of each heliostat 10 is controlled by a control unit (not shown), thereby adjusting the reflection angle of sunlight. In each figure, the number of heliostats is omitted, but in reality, a large number of heliostats are installed.

FIG. 1 also shows a surplus heliostat 11. Although this surplus heliostat 11 is mentioned later, it is the same as that of the normal heliostat 10 as the device configuration, and is different in that the reflected light is directed to the second heat receiver 9 of the first heliofield. The surplus heliostat 11 is not fixed, but operates as the surplus heliostat 11 when specified by the control unit. In some cases, the surplus heliostat 11 also functions as a normal heliostat 10.

As shown in FIG. 1, the first heliofield 3a is provided with a gas turbine 13, an exhaust gas boiler 15, and a steam turbine 17. On the other hand, each second heliofield 3b is provided with the gas turbine 13 and the exhaust gas boiler 15 similarly to the first heliofield 3a, but is not provided with the steam turbine 17.

FIG. 3 mainly shows the configuration of the first heliofield 3a. In the figure, the heliostat is omitted.
As shown in the figure, a tower 5 is provided in the first heliofield 3 a, and a first heat receiver 7 and a second heat receiver 9 are provided on the top of the tower 5. Specifically, a first heat receiver 7 is provided at the top of the tower 5, and a second heat receiver 9 is provided below the first heat receiver 7. However, the vertical relationship between the first heat receiver 7 and the second heat receiver 9 may be reversed. Both the first heat receiver 7 and the second heat receiver 9 have a function as a heat exchanger, and the heat energy of sunlight collected by the heliostats 10 and 11 is air or molten salt as a heat medium. It is what you tell.

The first heat receiver 7 is configured to collect sunlight from the heliostat 10 in the same heliofield. Therefore, the same 1st heat receiver 7 is provided also in the 2nd helio field 3b (refer FIG. 4).
The second heat receiver 9 collects sunlight from the surplus heliostat 11 in the first heliofield 3a and the surplus heliostat 11 in each second heliofield 3b (see FIG. 1). ).

Air compressed by a compressor 20 connected coaxially to the gas turbine 13 is introduced into the first heat receiver 7.
The compressor 20 is an axial compressor that sucks air in air (compressible working fluid) and compresses it to a predetermined high pressure. The compressor 20 is driven by using a part of the rotational driving force of the gas turbine 13 connected coaxially. The compressor 20 is not limited to a single-shaft type that is coaxially connected to the gas turbine 13, but may be a biaxial type that is connected via a gear.
The gas turbine 13 is an axial flow type in which air heated to a high temperature by the first heat receiver 7 is guided and rotated. The rotational power of the gas turbine 13 is transmitted to the gas turbine generator 22 so that electric power can be obtained.

The exhaust gas that is the air after being expanded by the gas turbine 13 is guided to the exhaust gas boiler 15. In the exhaust gas boiler 15, the exhaust water and the feed water are subjected to heat exchange, whereby the feed water is changed to superheated steam having a predetermined superheat degree. The feed water is guided by the feed water pump 24 to the exhaust gas boiler 15 through the exhaust gas boiler side water supply pipe 26a. Further, the feed water supplied from the feed water pump 24 is branched at the first feed water branch point 27, passes through the exhaust gas boiler side feed water branch pipe 26b, and the exhaust gas boilers of each second heliofield 3b ("HRSG" in FIG. 3). (Notation). The exhaust gas that has finished heat exchange in the exhaust gas boiler 15 is released to the atmosphere through a chimney (not shown).

The superheated steam generated in the exhaust gas boiler 15 is guided to the steam turbine 17 through the superheated steam pipe 29a. Superheated steam generated in the exhaust gas boiler of each second heliofield 3b is also guided to the steam turbine 17 via the combined superheated steam pipe 29b.

The steam turbine 17 is an axial turbine that is rotationally driven by superheated steam guided from each exhaust gas boiler. The rotational power of the steam turbine 17 is transmitted to the steam turbine-side generator 23 so that electric power can be obtained. The steam expanded by the steam turbine 17 is guided to the condenser 31.
In the condenser 31, the steam is cooled by heat exchange with cooling water or outside air (not shown) to be condensed into liquid. The condensate condensed and liquefied by the condenser 31 is guided to the water supply pump 24.

The feed water discharged from the feed water pump 24 is not only guided to the exhaust gas boiler 15 described above, but is also branched at the second feed water branch point 33 and led to the molten salt heat exchanger (steam generator) 35. It has become. In addition, although mentioned later, either the 1st water supply branch point 27 and the 2nd water supply branch point 33 are selected by the control part which is not shown in figure (refer FIG. 4).

The molten salt heat exchanger 35 exchanges heat between the feed water guided from the feed water pump 24 and the molten salt, thereby changing the feed water to superheated steam having a predetermined superheat degree. The superheated steam generated in the molten salt heat exchanger 35 is guided to the steam turbine 17 through the molten salt side superheated steam pipe 29c and the superheated steam pipe 29a.
As the molten salt (heat storage means) used as the heat medium, one having a large heat storage capacity is selected, and a mixed salt of sodium nitrate and potassium nitrate is typically used. The molten salt flows through a closed circuit including the molten salt heat exchanger 35, the low temperature tank 37, the low temperature tank side pump 39, the second heat receiver 9, the high temperature tank (heat storage means) 41, and the high temperature tank side pump 43. It has become.

In the low-temperature tank 37, the molten salt that has been cooled and cooled by the molten salt heat exchanger 35 is temporarily stored. The molten salt in the low temperature tank 37 is guided to the second heat receiver 9 by a low temperature tank side pump 39 driven by a control unit (not shown). The molten salt obtained by obtaining heat energy from sunlight in the second heat receiver 9 is guided to the high temperature tank 41 and temporarily stored. The molten salt in the high temperature tank 41 is guided to the molten salt heat exchanger 35 by a high temperature tank side pump 43 driven by a control unit (not shown).

Next, the operation of the solar turbine generator 1 configured as described above will be described with reference to FIG. The following description is divided into morning and evening driving when the solar radiation intensity is relatively low, such as morning and evening, daytime driving when the solar radiation intensity is relatively high such as daytime (south / central time), and night driving without solar radiation.

[During morning and evening driving]
When the solar altitude is low and the solar radiation intensity is relatively low, such as in the morning and evening, the gas turbine 13 is designed to operate at rated operation using almost all the heliostats 10 in the heliofields 3a and 3b. All the heliostats 10 are condensed toward the first heat receiver 7. Therefore, in this case, the light is not condensed on the second heat receiver 9. As a result, the air is heated to a desired temperature (for example, 500 ° C. to 1500 ° C.) in the first heat receiver 7 in each of the heliofields 3a and 3b, and each gas turbine 13 is driven by this high temperature air. When the gas turbine 13 in each heliofield 3a, 3b is driven, power is generated by each gas turbine side generator 22.

The exhaust gas discharged from the gas turbine 13 in each heliofield 3a, 3b is guided to each exhaust gas boiler 15 to heat the feed water and generate superheated steam. The superheated steam generated in each exhaust gas boiler 15 joins and then is guided to the steam turbine 17. When the steam turbine 17 is driven by the introduced superheated steam, the steam turbine generator 23 generates power.

The steam expanded in the steam turbine 17 is led to the condenser 31 to be condensed and condensed to condensate, and is led again to the exhaust gas boilers 15 by the feed water pump 24. At this time, as shown in FIG. 4, the first water supply branch point 27 side is selected by a control unit (not shown). That is, the feed water supplied from the feed water pump 24 flows to the exhaust gas boiler 15 and does not flow to the molten salt heat exchanger 35.

Further, since the second heat receiver 9 does not collect light, the molten salt is not actively flowed to the second heat receiver 9. However, in order to avoid clogging of the flow path due to solidification of the molten salt, a small flow rate of molten salt is allowed to flow. Therefore, the low temperature tank side pump 39 and the high temperature tank side pump 43 are driven at a low speed.

[During daytime operation]
When the solar radiation intensity is high as in the daytime, if all the heliostats 10 in the heliofields 3a and 3b are used and condensed on the first heat receiver 7, excessive heat will be supplied than the design. There is a possibility that the heat exchanger in the 1 heat receiver 7 may be damaged. Therefore, in the present embodiment, as shown in FIG. 4, only the number of heliostats 10 corresponding to the desired amount of heat necessary for the rated operation is condensed toward the first heat receiver 7. This is performed by adjusting the reflection angle of each heliostat 10 by a control unit (not shown). On the other hand, the other heliostat (surplus heliostat 11) that does not collect light to the first heat receiver 7 collects light toward the second heat receiver 9 provided in the first helio field 3a. This is also performed by adjusting the reflection angle of each heliostat 11 by a control unit (not shown). The surplus heliostat 11 may be arbitrarily selected at each time, and as shown in FIG. 1, a helio located on the first helio field 3a side of each second helio field 3b. A stat may be selected.

Since the operation of the gas turbine 13 in each of the heliofields 3a and 3b is the same as that in the morning and evening operation described above, the description thereof is omitted.

During the daytime operation, unlike the morning and evening operation, the heat storage operation is performed. That is, the thermal energy obtained by condensing in the second heat receiver 9 is transmitted to the molten salt and stored in the high temperature tank 41. Specifically, the low temperature tank side pump 39 is driven at the rated rotational speed, and the molten salt in the low temperature tank 37 is guided to the second heat receiver 9. The molten salt heated by the second heat receiver 9 is introduced into the high temperature tank 41 and stored. The high-temperature tank-side pump 43 is driven at a low rotation so as to flow a small flow rate, and prevents blockage of the flow path due to solidification and preheating of the molten salt heat exchanger 35.
When such a heat storage operation is performed, as shown in FIG. 4, the first water supply branch point 27 side is selected by a control unit (not shown).

[During night driving]
When there is little or no solar radiation, such as at night, the amount of heat that can drive the gas turbine 13 cannot be collected by the first heat receiver 7, so the gas turbine 13 is stopped.
On the other hand, the steam turbine 17 is driven using the molten salt stored during daytime operation. That is, the second supply water branch point 33 side is selected by a control unit (not shown), and the high-temperature tank-side pump 43 is driven at the rated rotational speed to guide the molten salt in the high-temperature tank 41 to the molten salt heat exchanger 35. . At this time, the low temperature tank side pump 39 is driven at a low rotation so as to flow a small flow rate, and avoids blockage of the flow path due to solidification.
In the molten salt heat exchanger 35, heat exchange is performed between the feed water supplied from the feed water pump 24 and the molten salt supplied from the high-temperature tank 41 to generate superheated steam. The generated superheated steam passes through the molten salt side superheated steam pipe 29 c and is guided to the steam turbine 17 to drive the steam turbine 17. Thus, the steam turbine 17 can be driven to generate power even at night without solar radiation.

As described above, according to the solar thermal power generation apparatus 1 according to the present embodiment, the following operational effects can be obtained.
When the amount of heat concentrated on the first heat receiver 7 reaches the design heat amount during rated operation, the reflection angle of the surplus heliostat 11 that does not collect sunlight on the first heat receiver 7 is adjusted, 2 Condensed to the heat receiver 9. As a result, the solar heat energy that could not be collected because it could not be condensed on the first heat receiver 7 can be used without waste in the second heat receiver 9, and it is effective even in the vicinity of the middle and middle hours when the solar radiation is strong. Can collect heat.

Suppose that the heat obtained in the second heat receiver 9 is stored in the high-temperature tank 41 that stores the molten salt. As a result, heat can be stored in the daytime operation concentrated by the second heat receiver 9, and power can be generated by the steam turbine 17 using the molten salt in the high-temperature tank 41 stored at night without solar radiation. it can. Therefore, a high operating rate can be realized regardless of the intensity of solar radiation and the presence or absence thereof.

In addition to the first heat receiver 7, a second heat receiver 9 is installed only in the first heliofield 3 a, and the second heliofield 3 b surrounding the first heliofield 3 a is not provided with the second heat receiver 9. Only the heat receiver 7 was provided. Thereby, the sunlight reflected from the surplus heliostat 11 is collected collectively in the second heat receiver 9 provided in the first heliofield 3a located in the center. Therefore, the amount of heat received by the second heat receiver 9 is increased, and the heat received by the second heat receiver 9 is efficiently performed more efficiently.
Further, since the second heliofield 3b is arranged so as to surround the first heliofield 3a, the surplus heliostat 11 of the second heliofield 3b can be directed to the second heat receiver 9 of the first heliofield 3a. It becomes easy.

DESCRIPTION OF SYMBOLS 1 Solar turbine generator 3a 1st helio field (1st electric power generation area)
3b Second Heliofield (second power generation area)
5 Tower 7 First heat receiver 9 Second heat receiver 10 Heliostat 11 Surplus heliostat 13 Gas turbine 15 Exhaust gas boiler 17 Steam turbine 20 Compressor 22 Gas turbine side generator 23 Steam turbine side generator 24 Water supply pump 26a Exhaust boiler side Water supply pipe 26b Exhaust gas boiler side water supply branch pipe 27 First water supply branch point 29a Superheated steam pipe 29b Merged superheated steam pipe 29c Molten salt side superheated steam pipe 31 Condenser 33 Second water supply branch point 35 Molten salt heat exchanger 37 Low temperature tank 39 Low temperature tank side pump 41 High temperature tank 43 High temperature tank side pump

Claims (6)

A plurality of reflectors whose reflection angles reflecting sunlight can be changed;
A heat receiver that collects sunlight reflected by these reflectors;
A turbine generator that generates power by being driven by the heat obtained by the heat receiver;
In a solar thermal power generator with
The heat receiver has a first heat receiver and a second heat receiver,
When the amount of heat collected on the first heat receiver reaches a desired value, the second heat receiver is configured to connect the surplus reflector, which is another reflector that does not collect sunlight on the first heat receiver, to the second heat receiver. A solar turbine power generation apparatus comprising a control unit that adjusts the reflection angle so as to concentrate light on the vessel. The turbine generator is
A gas turbine driven by the gas heated by the first heat receiver;
An exhaust gas boiler that generates steam by recovering heat from the exhaust gas exhausted from the gas turbine;
A steam generator that generates steam by the heat obtained by the second heat receiver;
A steam turbine driven by steam introduced from the exhaust gas boiler and / or the steam generator;
The solar-heat-turbine power generator of Claim 1 provided with. The solar-turbine power generator of Claim 1 or 2 which has a thermal storage means to store the heat obtained with the said 2nd heat receiver. The said control part produces | generates a vapor | steam with the said steam generator with the heat | fever stored by the said thermal storage means, and drives the said steam turbine, when the vapor | steam amount from the said exhaust gas boiler becomes below a predetermined value. Item 4. The solar thermal turbine power generator according to any one of Items 1 to 3. A first condensing region in which the first heat receiver and the second heat receiver are provided at an upper portion of a tower erected in a vertical direction, and a plurality of the reflectors are provided around the tower;
A second condensing region in which only the first heat receiver is provided at an upper portion of a tower standing in a vertical direction, and a plurality of the reflectors are provided around the tower;
With
A plurality of the second light collection regions are provided so as to surround the first light collection region,
The control unit condenses the surplus reflector of the first condensing region on the second heat receiver, and condenses the surplus reflector of the second condensing region on the second heat receiver. The solar thermal turbine power generator according to any one of claims 1 to 4. A plurality of reflectors whose reflection angles reflecting sunlight can be changed;
A heat receiver that collects sunlight reflected by these reflectors;
A turbine generator that generates power by being driven by the heat obtained by the heat receiver;
In the control method of the solar thermal power generator with
The heat receiver has a first heat receiver and a second heat receiver,
When the amount of heat collected on the first heat receiver reaches a desired value, the second heat receiver is configured to connect the surplus reflector, which is another reflector that does not collect sunlight on the first heat receiver, to the second heat receiver. A method for controlling a solar turbine power generation apparatus that adjusts the reflection angle so as to concentrate light on a vessel.

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