JP2011032960A - Solar heat gas turbine power generator and solar heat gas turbine power generation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress deterioration in durability of a heat receiver. <P>SOLUTION: This solar gas turbine power generator 1 includes: a heliostat 18 collecting solar light; a compressor 14 compressing working fluid; the heat receiver 20 transmitting the heat of the sun light collected by the heliostat 18 to the working fluid compressed by the compressor 14; a turbine 16 obtaining a rotational force while receiving the working fluid heat-exchanged in the heat receiver 20; a generator 12 generating electricity by inputting the rotational force from the turbine 16; and a heat quantity adjustment means adjusting the heat quantity received by the heat receiver 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a solar gas turbine power generation device and a solar gas turbine power generation method for generating heat by transmitting the heat of sunlight to a working fluid.

  Conventionally, there is a sunlight condensing device as a device for collecting sunlight. For example, Patent Document 1 discloses a sunlight condensing device that includes a condensing lens, a reflecting mirror, and a light receiving unit, and can always form an image at a certain position regardless of the altitude and direction of the sun. ing. As a technology using such a solar concentrator, power generated by transmitting the heat of sunlight collected by the solar concentrator to a working fluid, supplying the working fluid to a turbine, and rotating a rotating body Devised a solar gas turbine power generator to drive the machine.

Japanese Patent Laid-Open No. 58-199314

  If the solar collector disclosed in Patent Document 1 is used for a solar gas turbine power generator, the working fluid always receives heat from all of the sunlight that can be collected by the solar collector. Become. In this case, there is a possibility that the temperature of the heat receiver further rises above the appropriate temperature. Here, the appropriate temperature is a temperature at which the durability of the heat receiver can be secured. Therefore, in the solar light collecting device disclosed in Patent Document 1, the temperature of the heat receiver may exceed the appropriate temperature, and the durability of the heat receiver may be reduced.

  This invention is made | formed in view of the above, Comprising: It aims at suppressing the fall of durability of a heat receiver.

  In order to solve the above-described problems and achieve the object, a solar gas turbine power generator according to the present invention includes a solar light collecting device that collects sunlight, a compressor that compresses working fluid, and the solar light collecting device. A heat receiver for transmitting the heat of sunlight collected by the apparatus to the working fluid compressed by the compressor, a turbine for receiving a working fluid heat-exchanged by the heat receiver to obtain a rotating force, and a rotating force from the turbine It is characterized by comprising a generator that generates electric power by being input, and a heat amount adjusting means that adjusts the amount of heat that enters and leaves the heat receiver.

  In the solar gas turbine power generator, for example, when the amount of heat brought into the heat receiver changes, the temperature of the heat receiver changes. Further, in the solar gas gas turbine generator, for example, when the amount of heat taken out from the heat receiver changes, the temperature of the heat receiver changes. Here, in the solar gas turbine power generator, when the temperature of the heat receiver rises more than necessary, the durability of the heat receiver may decrease. However, the solar gas turbine power generator according to the present invention can adjust the temperature of the heat receiver by including the calorific value adjusting means. Therefore, the solar gas turbine power generator according to the present invention can suppress a decrease in durability of the heat receiver.

  As a preferable aspect of the present invention, it is desirable that the heat amount adjusting means adjusts the amount of heat entering and exiting the heat receiver based on a heat receiving state of the working fluid by the heat receiver.

  With the configuration described above, the solar gas turbine power generator according to the present invention can adjust the amount of heat entering and exiting the heat receiver so that the heat receiving state of the working fluid by the heat receiver becomes appropriate. Therefore, the solar gas turbine power generator according to the present invention can more suitably suppress a decrease in durability of the heat receiver.

  As a preferable aspect of the present invention, the heat reception state is at least one of a heat receiver temperature that is a temperature of the heat receiver and a working fluid temperature that is a temperature of a working fluid led from the heat receiver to the turbine. One temperature is desirable.

  In the case of a configuration in which the amount of heat entering and exiting the heat receiver is adjusted based on the heat receiver temperature, the solar gas turbine power generator according to the present invention can adjust the temperature of the heat receiver based on a more accurate temperature of the heat receiver. Therefore, the solar gas turbine power generator can more suitably suppress a decrease in durability of the heat receiver. On the other hand, in the case of a configuration in which the amount of heat entering and exiting the heat receiver is adjusted based on the working fluid temperature, the solar gas turbine power generator according to the present invention can further increase the amount of heat transmitted to the working fluid based on the more accurate temperature of the working fluid. It can be adjusted accurately.

  Here, by adjusting the working fluid temperature more accurately, the solar gas turbine power generator can adjust the amount of power generated by the generator more accurately. Therefore, the solar gas turbine power generator according to the present invention can adjust the amount of power generated by the generator more accurately. Note that the working fluid temperature and the heat receiver temperature are correlated, and when the working fluid temperature rises, the heat receiver temperature also rises. Therefore, even if the solar gas turbine power generator according to the present invention is configured to adjust the amount of sunlight guided to the heat receiver based on the working fluid temperature, as a result, the temperature of the heat receiver based on the temperature of the heat receiver. Therefore, a decrease in durability of the heat receiver can be suppressed.

  Further, in the case of a configuration in which the amount of sunlight guided to the heat receiver is adjusted based on both the heat receiver temperature and the working fluid temperature, the solar gas gas turbine power generator according to the present invention has a more accurate temperature of the heat receiver. Based on this, the temperature of the heat receiver can be adjusted, and the amount of heat transferred to the working fluid can be adjusted more accurately based on the more accurate temperature of the working fluid. Therefore, the solar thermal gas turbine power generator can more suitably suppress the decrease in durability of the heat receiver and can adjust the power generation amount by the generator more accurately.

  As a preferred aspect of the present invention, the calorific value adjusting means includes an amount of sunlight guided from the solar light collecting device to the heat receiver and a flow rate of working fluid guided from the compressor to the heat receiver. It is desirable to adjust the amount of heat entering and exiting the heat receiver by adjusting at least one of the above.

  Here, in the solar gas turbine power generator, when the amount of sunlight guided from the solar light collecting device to the heat receiver decreases, the temperature of the heat receiver decreases. The solar gas turbine power generator according to the present invention can adjust the amount of sunlight guided from the solar light collecting device to the heat receiver with the above configuration. Therefore, the solar gas turbine power generator according to the present invention can suppress the possibility that the temperature of the heat receiver further rises above the appropriate temperature. As a result, the solar gas turbine power generator according to the present invention can suppress a decrease in durability of the heat receiver.

  Here, when the flow rate of the working fluid led from the compressor to the heat receiver increases, the temperature of the heat receiver decreases. This is because the amount of heat taken out from the heat receiver increases as more working fluid is guided to the heat receiver in the solar gas turbine power generator. The solar thermal gas turbine power generator according to the present invention can adjust the flow rate of the working fluid guided from the compressor to the heat receiver by the above configuration. Therefore, the solar gas turbine power generator according to the present invention can suppress the possibility that the temperature of the heat receiver further rises above the appropriate temperature. As a result, the solar gas turbine power generator according to the present invention can suppress a decrease in durability of the heat receiver.

  The solar gas gas turbine generator according to the present invention adjusts the amount of sunlight guided from the solar light collecting device to the heat receiver and the flow rate of the working fluid guided from the compressor to the heat receiver by the above configuration. it can. Therefore, the solar gas turbine power generator according to the present invention, for example, the amount of sunlight guided from the solar concentrator to the heat receiver even when the flow rate of the working fluid guided from the compressor to the heat receiver cannot be adjusted any more. By adjusting the temperature, the temperature of the heat receiver can be adjusted. As a result, the solar gas turbine power generator according to the present invention can more suitably suppress the risk that the temperature of the heat receiver further rises above the appropriate temperature, and can more suitably suppress the decrease in durability of the heat receiver.

  As a preferred aspect of the present invention, it is desirable that the heat amount adjusting means decrease the amount of sunlight guided to the heat receiver as the heat receiver temperature or the working fluid temperature increases.

  In the solar gas turbine power generator, when the amount of sunlight guided from the solar light collecting device to the heat receiver decreases, the temperature of the heat receiver decreases. With the above configuration, the solar gas turbine power generator according to the present invention can suppress the possibility that the temperature of the heat receiver further rises above the appropriate temperature. As a result, the solar gas turbine power generator according to the present invention can suppress a decrease in durability of the heat receiver.

  As a preferred aspect of the present invention, it is desirable that the heat amount adjusting means increase the flow rate of the working fluid guided to the heat receiver as the heat receiver temperature or the working fluid temperature increases.

  In the solar gas turbine power generator, when the flow rate of the working fluid led from the compressor to the heat receiver increases, the temperature of the heat receiver decreases. Therefore, the solar gas turbine power generator according to the present invention can suppress the possibility that the temperature of the heat receiver further rises above the appropriate temperature. As a result, the solar gas turbine power generator according to the present invention can suppress a decrease in durability of the heat receiver.

  As a preferred aspect of the present invention, the heat quantity adjusting means has two temperatures: a heat receiver temperature that is a temperature of the heat receiver and a working fluid temperature that is a temperature of a working fluid led from the heat receiver to the turbine. Based on the first amount of sunlight guided to the heat receiver when based on the heat receiver temperature, and a second amount of sunlight guided to the heat receiver when based on the working fluid temperature, It is preferable that the amount of sunlight guided to the heat receiver is adjusted so as to be a smaller one of the first amount and the second amount.

  With the above configuration, the solar gas turbine power generator according to the present invention has a smaller value of the first amount of sunlight guided to the heat receiver and the second amount of sunlight guided to the heat receiver. Adjust the amount of sunlight led to the heat receiver. Here, as for the solar gas gas turbine power generator, as the amount of sunlight guided to the heat receiver is smaller, the temperature rise of the heat receiver is suppressed. That is, the smaller value of the first amount of sunlight guided to the heat receiver and the second amount of sunlight guided to the heat receiver is a safer value than the other value. Therefore, the solar gas turbine power generator adjusts the amount of sunlight guided to the heat receiver with a safer value as a target value. As a result, the solar gas turbine power generator can more suitably suppress at least one of the rise in the temperature of the heat receiver and the rise in the temperature of the working fluid by the heat receiver.

  As a preferred aspect of the present invention, the heat quantity adjusting means has two temperatures: a heat receiver temperature that is a temperature of the heat receiver and a working fluid temperature that is a temperature of a working fluid led from the heat receiver to the turbine. A first flow rate of the working fluid led to the heat receiver when based on the heat receiver temperature, and a second flow rate of the working fluid led to the heat receiver when based on the working fluid temperature, It is preferable to adjust the amount of sunlight guided to the heat receiver so that the larger one of the first flow rate and the second flow rate is obtained.

  With the above-described configuration, the solar gas turbine power generator according to the present invention is configured so that the flow rate of the working fluid guided to the heat receiver becomes a larger value of the first flow rate and the second flow rate. The flow rate of the working fluid led to is adjusted. Here, in the solar gas turbine power generator, as the amount of the working fluid guided to the heat receiver increases, the temperature rise of the heat receiver is suppressed. That is, the larger value of the first flow rate and the second flow rate is a safer value than the other value. Therefore, the solar thermal gas turbine power generator adjusts the flow rate of the working fluid guided to the heat receiver with a safer value as a target value. As a result, the solar gas turbine power generator can more suitably suppress the increase in the temperature of the heat receiver, and more preferably can suppress the decrease in the durability of the heat receiver.

  As a preferred aspect of the present invention, the heat amount adjusting means adjusts the amount of sunlight guided to the heat receiver after the flow rate of the working fluid guided from the compressor to the heat receiver reaches a predetermined value. It is desirable.

  Here, when the temperature of the heat receiver rises, the solar gas turbine power generator first starts reducing the amount of sunlight received by the heat receiver, and then adjusts the flow rate of the working fluid guided to the heat receiver. Even in the configuration, a decrease in durability of the heat receiver can be suppressed. However, in the solar gas gas turbine power generator, when the amount of sunlight received by the heat receiver decreases, the amount of power generated by the generator also decreases. Therefore, the solar gas turbine power generator according to the present invention first adjusts the flow rate of the working fluid led to the compressor to suppress the rise in the temperature of the heat receiver, and when the temperature of the heat receiver still rises, Adjust the amount of sunlight directed to the heat receiver. Thereby, the solar gas gas turbine power generator can achieve both suppression of a decrease in durability of the heat receiver and suppression of a decrease in the amount of power generated by the generator.

  In order to solve the above-mentioned problems and achieve the object, a solar gas turbine power generation method according to the present invention includes a solar light collecting device that collects sunlight, a compressor that compresses a working fluid, and the solar light collecting device. A heat receiver for transmitting the heat of sunlight collected by the apparatus to the working fluid compressed by the compressor, a turbine for receiving a working fluid heat-exchanged by the heat receiver to obtain a rotating force, and a rotating force from the turbine A control method for controlling a solar gas turbine power generator comprising: a generator that generates power by being input, wherein the flow rate of the working fluid led from the compressor to the heat receiver; and the solar light collector At least one of the amount of sunlight led from the heat receiver to the heat receiver is adjusted based on the heat reception state of the working fluid by the heat receiver.

  As described above, in the solar gas turbine power generator, when the amount of sunlight guided from the solar light collecting device to the heat receiver decreases, the temperature of the heat receiver decreases. Further, in the solar thermal gas turbine power generator, when the flow rate of the working fluid led from the compressor to the heat receiver increases, the temperature of the heat receiver decreases. If the solar gas turbine power generation method according to the present invention is used, the amount of sunlight guided from the solar light collecting device to the heat receiver can be adjusted. Moreover, if the solar gas turbine power generation method according to the present invention is used, the flow rate of the working fluid guided from the compressor to the heat receiver can be adjusted. Therefore, if the solar thermal gas turbine power generation method according to the present invention is used, it is possible to suppress the possibility that the temperature of the heat receiver further rises above the appropriate temperature. As a result, if the solar gas turbine power generation method according to the present invention is used, a decrease in durability of the heat receiver can be suppressed.

  As a preferred aspect of the present invention, it is desirable to adjust the amount of sunlight guided to the heat receiver after the flow rate of the working fluid guided from the compressor to the heat receiver reaches a predetermined value.

  As described above, when the amount of sunlight received by the heat receiver decreases in the solar gas turbine power generator, the amount of power generated by the generator also decreases. Therefore, the solar gas turbine power generation method according to the present invention first adjusts the flow rate of the working fluid led to the compressor to suppress the temperature rise of the heat receiver, and when the temperature of the heat receiver still rises, Adjust the amount of sunlight directed to the heat receiver. Thereby, if the solar thermal gas turbine power generation method according to the present invention is used, it is possible to achieve both suppression of a decrease in durability of the heat receiver and suppression of a decrease in the amount of power generated by the generator.

  As a preferred aspect of the present invention, the solar light collecting device is configured to include a plurality of mirrors supported so that an angle with respect to the heat receiver can be adjusted, and the heat amount adjusting means is provided to each of the plurality of mirrors. It is desirable that the mirror angle adjusting device is provided and adjusts the angle of each of the plurality of mirrors.

  With the above configuration, the solar gas turbine power generator according to the present invention can adjust the amount of sunlight guided from the solar light collecting device to the heat receiver. Therefore, the solar gas turbine power generator according to the present invention can suppress the possibility that the temperature of the heat receiver further rises above the appropriate temperature. As a result, the solar gas turbine power generator according to the present invention can suppress a decrease in durability of the heat receiver.

  As a preferred aspect of the present invention, the compressor is provided in the compressor so that an angle with respect to a flow of the working fluid can be adjusted, and includes an inlet guide vane that guides the working fluid to the compressor. The adjusting means is preferably an inlet guide blade angle adjusting device for adjusting the angle of the inlet guide blade.

  With the above configuration, the solar gas turbine power generator according to the present invention can adjust the flow rate of the working fluid guided from the solar light collecting device to the heat receiver. Therefore, the solar gas turbine power generator according to the present invention can suppress the possibility that the temperature of the heat receiver further rises above the appropriate temperature. As a result, the solar gas turbine power generator according to the present invention can suppress a decrease in durability of the heat receiver.

  As a preferable aspect of the present invention, a heat receiver front passage that guides the working fluid from the compressor to the heat receiver, a heat receiver rear passage that guides the working fluid from the heat receiver to the turbine, and one end of the heat receiver. A bypass passage having an opening in the front passage and having the other end opening in the rear passage of the heat receiver, and the heat amount adjusting means includes a working fluid led to the heat receiver, and the bypass passage. It is desirable to include a flow rate adjusting valve that adjusts the ratio of the flow rate to the working fluid guided to the passage after the heat receiver through the heat receiving device.

  With the above configuration, the solar gas turbine power generator according to the present invention can adjust the flow rate of the working fluid guided from the solar light collecting device to the heat receiver. Therefore, the solar gas turbine power generator according to the present invention can suppress the possibility that the temperature of the heat receiver further rises above the appropriate temperature. As a result, the solar gas turbine power generator according to the present invention can suppress a decrease in durability of the heat receiver.

  The present invention can suppress a decrease in durability of the heat receiver.

FIG. 1 is a configuration diagram illustrating a solar gas turbine power generator according to the first embodiment. FIG. 2 is a map showing the relationship between the heat receiver temperature and the number of effective mirrors. FIG. 3 is a block diagram illustrating a configuration of the control device according to the first embodiment. FIG. 4 is a flowchart illustrating a procedure executed by the control device of the first embodiment. FIG. 5 is a configuration diagram illustrating a solar gas turbine power generator according to the second embodiment. FIG. 6 is a map showing the relationship between the heat receiver temperature and the working fluid flow rate. FIG. 7 is a flowchart illustrating a procedure executed by the control device of the second embodiment. FIG. 8 is a configuration diagram illustrating a solar gas turbine power generator according to the third embodiment. FIG. 9 is a flowchart illustrating a procedure executed by the control device of the third embodiment. FIG. 10 is a configuration diagram illustrating a solar gas turbine power generator according to the fourth embodiment. FIG. 11 is a map showing the relationship between the heat receiver temperature and the number of effective mirrors, and the relationship between the heat receiver temperature and the working fluid flow rate. FIG. 12 is a flowchart illustrating a procedure executed by the control device of the fourth embodiment. FIG. 13 is a configuration diagram illustrating a solar gas turbine power generator according to the fifth embodiment. FIG. 14 is a map showing the relationship between the heat receiver temperature and the number of effective mirrors, and the relationship between the heat receiver temperature and the working fluid flow rate. FIG. 15 is a flowchart illustrating a procedure executed by the control device of the fifth embodiment.

  Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited by the following embodiment. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or that are substantially the same.

(Embodiment 1)
FIG. 1 is a configuration diagram illustrating a solar gas turbine power generator according to the first embodiment. As shown in FIG. 1, the solar gas turbine power generator 1 according to the first embodiment includes a generator 12, a compressor 14, and a turbine 16. When the rotation is input, the generator 12 converts the kinetic energy of the rotational motion into electric energy. When the rotation is input, the compressor 14 compresses the working fluid. In addition, the working fluid of this embodiment is air. When the working fluid is supplied to the turbine 16, the rotating body 26 rotates by obtaining a rotational force from the working fluid. The rotation of the rotating body 26 is input to the compressor 14. The rotating body 26 is connected to the input shaft 28 of the generator 12. Thereby, the rotation of the rotating body 26 is input to the generator 12.

  The solar gas turbine generator 1 further includes a heliostat 18 as a solar concentrator, a heat receiver 20, a reheater 22, and a chimney 24. Further, the solar gas turbine power generator 1 includes a heat receiver front passage 30, a heat receiver rear passage 32, and an exhaust passage 34 as pipes through which the working fluid flows. The heliostat 18 collects sunlight to the heat receiver 20. The heliostat 18 includes, for example, a plurality of mirrors 18a. The heliostat 18 is configured to be supported so that the mirror 18a can rotate. In the solar gas turbine power generator 1, the number of mirrors 18 a that guide sunlight to the heat receiver 20 is adjusted by adjusting the angle of the mirror 18 a with respect to the heat receiver 20. As a result, the solar gas turbine power generator 1 adjusts the amount of sunlight supplied to the heat receiver 20. Hereinafter, the angle of the mirror 18a with respect to the heat receiver 20 is simply referred to as the angle of the mirror 18a.

  The heat receiver 20 is connected to the compressor 14 through the heat receiver front passage 30. In the solar gas turbine power generator 1 according to this embodiment, the reheater 22 is provided in the pre-heat-receiver passage 30 between the compressor 14 and the heat-receiver 20. The heat receiver 20 transfers the heat of sunlight to a new working fluid guided from the compressor 14 via the heat receiver front passage 30. The heat receiver 20 includes a plurality of metal heat receiving pipes 21, an inlet side tank 21a, and an outlet side tank 21b. The inlet side tank 21 a and the outlet side tank 21 b are connected by a heat receiving pipe 21. The inlet-side tank 21a is connected to the heat receiver front passage 30.

  The heat receiving pipe 21 is provided with fins, for example. The heat receiver 20 transfers the received heat of sunlight to the working fluid that flows inside the heat receiving pipe 21. Thereby, the heat receiver 20 raises the temperature of the working fluid flowing through the heat receiving pipe 21 to expand the working fluid. The heat receiver 20 is connected to the turbine 16 through a heat receiver rear passage 32. The solar gas turbine power generator 1 guides the working fluid expanded by the heat receiver 20 to the turbine 16 via the heat receiver rear passage 32.

  The chimney 24 is connected to the turbine 16 through an exhaust passage 34. In the solar gas turbine power generator 1 according to this embodiment, a reheater 22 is provided between the turbine 16 and the chimney 24. The chimney 24 discharges the exhaust gas guided from the turbine 16 through the exhaust passage 34 to the atmosphere. The reheater 22 is provided in the heat receiver front passage 30 and the exhaust passage 34. The reheater 22 collects heat (waste heat) of the exhaust gas flowing through the exhaust passage 34 and transmits the heat to the working fluid flowing through the heat receiver front passage 30.

  Specifically, the reheater 22 includes a working fluid passage and an exhaust gas passage. In the reheater 22, the heat receiver front passage 30 on the compressor 14 side is connected to the inlet of the working fluid passage, and the heat receiver front passage 30 on the heat receiver 20 side is connected to the outlet of the working fluid passage. The reheater 22 has an exhaust passage 34 on the turbine 16 side connected to the inlet of the exhaust gas passage, and an exhaust passage 34 on the chimney 24 side connected to the outlet of the exhaust gas passage. The reheater 22 transfers the heat of the fluid flowing through the exhaust gas passage to the fluid flowing through the working fluid passage. Thereby, the reheater 22 collects the heat (waste heat) of the exhaust gas and transfers the heat to the working fluid.

  Note that the solar gas turbine power generator 1 may not include the reheater 22. The solar gas turbine power generator 1 can realize power generation by the generator 12 without the reheater 22. However, it is preferable that the solar gas turbine power generator 1 includes the reheater 22. By providing the reheater 22, the solar thermal gas turbine power generator 1 can recover the waste heat from the exhaust gas, raise the temperature of the working fluid with the waste heat, and expand the working fluid. Thereby, the solar gas turbine power generator 1 can further expand the working fluid by providing the reheater 22 rather than the case where the working fluid is expanded only by the heat receiver 20. As a result, the solar gas turbine power generator 1 can increase the power generation amount of the power generator 12 because the reheater 22 can provide more kinetic energy of the working fluid to the turbine 16.

  The basic configuration of the solar gas turbine power generator 1 has been described above. As described above, the solar gas turbine power generator 1 is an open-cycle power generation in which the compressor 14 sucks a new working fluid from the atmosphere and releases the working fluid that has been worked in the turbine 16 to the atmosphere via the chimney 24. Device.

  Here, the solar gas turbine power generator 1 varies the amount of sunlight received by the heat receiver 20 due to, for example, the weather. As the amount of sunlight received by the heat receiver 20 increases, the solar gas turbine power generator 1 increases the amount of heat brought into the heat receiver 20, so that the temperature of the heat receiver 20, particularly the temperature of the heat receiving pipe 21, also increases. . Therefore, the solar gas turbine power generator 1 has a configuration for keeping the temperature of the heat receiving pipe 21 at an appropriate temperature. The configuration will be described below.

  The solar gas turbine power generator 1 includes a control device 36, a heat receiver temperature sensor 38, and a heliostat angle adjustment device 40. The control device 36 is, for example, a computer configured with a central processing unit (CPU), a memory, and the like. The heat receiver temperature sensor 38 is attached to the heat receiving pipe 21 of the heat receiver 20, and the temperature of the heat receiver 20, specifically the temperature of the heat receiving pipe 21, more specifically, the metal member on the outer surface of the heat receiving pipe 21. Detect temperature. The heat receiver temperature sensor 38 is electrically connected to the control device 36. Thereby, the control apparatus 36 acquires the temperature of the heat receiving pipe 21 from the heat receiver temperature sensor 38. The heliostat angle adjusting device 40 adjusts the angle of the mirror 18 a of the heliostat 18.

  The heliostat angle adjusting device 40 is, for example, a servo motor. The control device 36 is electrically connected to the heliostat angle adjustment device 40. Thereby, the control device 36 controls the operation of the heliostat angle adjusting device 40 to adjust the angle of the mirror 18 a of the heliostat 18. Here, the heliostat 18 of the present embodiment has a plurality of mirrors 18a, and the heliostat angle adjusting device 40 is provided on each of the plurality of mirrors 18a. Thereby, the control apparatus 36 adjusts each angle of the said some mirror 18a separately. The control device 36 adjusts the amount of sunlight received by the heat receiver 20 by adjusting the number of mirrors 18 a that guide sunlight to the heat receiver 20. Here, the number of mirrors 18a that guides sunlight to the heat receiver 20 among the plurality of mirrors 18a included in the heliostat 18 is hereinafter referred to as an effective number of mirrors.

  FIG. 2 is a map showing the relationship between the heat receiver temperature and the number of effective mirrors. The control device 36 adjusts the amount of sunlight received by the heat receiver 20 by adjusting the effective mirror number N as shown in FIG. Hereinafter, the temperature of the heat receiver 20 is referred to as a heat receiver temperature T1. The heat receiver temperature T1 is specifically the temperature of the heat receiving pipe 21, and more specifically the temperature of the metal member on the outer surface of the heat receiving pipe 21. The control device 36 sets the effective mirror number N to the maximum value until the heat receiver temperature T1 exceeds the first predetermined temperature T1a. That is, the control device 36 guides sunlight to the heat receiver 20 from all the mirrors 18 a included in the heliostat 18. And if the heat receiver temperature T1 exceeds 1st predetermined temperature T1a, the control apparatus 36 will reduce the number N of effective mirrors, so that the heat receiver temperature T1 rises. Then, when the heat receiver temperature T1 exceeds the second predetermined temperature T1b, the control device 36 sets the effective mirror number N to zero.

  Here, as the temperature of the heat receiving pipe 21 becomes higher, the durability tends to be lowered. If the heat receiver temperature T1 is equal to or lower than the first predetermined temperature T1a, the first predetermined temperature T1a is a value that can sufficiently ensure the durability of the heat receiving pipe 21 even if the heat receiver temperature T1 is further increased. Further, the second predetermined temperature T1b is a value that can suppress a decrease in the durability of the heat receiving pipe 21 if the heat receiver temperature T1 is equal to or lower than the second predetermined temperature T1b.

  If the heat receiver temperature T1 is equal to or lower than the first predetermined temperature T1a, the controller 36 directs sunlight from all the mirrors 18a of the heliostat 18 to the heat receiver 20, and sets the heat receiver temperature T1 to the first predetermined temperature T1a. Try to get closer. Further, when the heat receiver temperature T1 is higher than the first predetermined temperature T1a and equal to or lower than the second predetermined temperature T1b, the control device 36 reduces the effective mirror number N and sets the heat receiver temperature T1 to the first predetermined temperature. It tries to approach the temperature T1a. Further, when the heat receiver temperature T1 is higher than the second predetermined temperature T1b, the control device 36 attempts to quickly reduce the heat receiver temperature T1 to the second predetermined temperature T1b or less by setting the effective mirror number N to zero.

  As a result, the control device 36 tries to bring the heat receiver temperature T1 closer to the first predetermined temperature T1a that is an appropriate temperature. The term “appropriate temperature” as used herein refers to a value that can suppress a decrease in durability of the heat receiving pipe 21 and suppress a decrease in the amount of power generated by the generator 12 due to a decrease in the temperature of the working fluid. As described above, the solar thermal gas turbine power generator 1 can suppress a decrease in durability of the heat receiving pipe 21 while suppressing a decrease in the amount of power generated by the generator 12. Next, an example of a configuration of the control device 36 for the control device 36 to realize the above-described function and an example of a procedure executed by the control device 36 will be described. In the following description, the graph shown in FIG. 2 is referred to as a map M1.

  FIG. 3 is a block diagram illustrating a configuration of the control device according to the first embodiment. As illustrated in FIG. 3, the control device 36 includes an operation control unit 36a, a calculation unit 36b, an information acquisition unit 36c, and a storage unit 36d. Here, the control device 36 may be configured by realizing each function from the operation control unit 36a to the storage unit 36d by separate devices and electrically connecting the plurality of devices. However, each function from the operation control unit 36a to the storage unit 36d may be realized. In the present embodiment, the control device 36 is configured as a single device, and description will be made assuming that each function from the operation control unit 36a to the storage unit 36d is realized by a single device.

  The operation control unit 36 a is electrically connected to the heliostat angle adjusting device 40 shown in FIG. 1 and controls the operation of the heliostat angle adjusting device 40. Thereby, the control apparatus 36 adjusts the number of effective mirrors. The calculation unit 36b exchanges information with the operation control unit 36a and the information acquisition unit 36c. The calculation unit 36b compares the information acquired from the information acquisition unit 36c with other information, executes a predetermined calculation using the information acquired from the information acquisition unit 36c, and issues a command to the operation control unit 36a. To do. The information acquisition unit 36c is electrically connected to the heat receiver temperature sensor 38 illustrated in FIG. 1 and acquires the heat receiver temperature T1 from the heat receiver temperature sensor 38. The information acquisition unit 36c acquires information stored in the storage unit 36d from the storage unit 36d. The storage unit 36d stores the map M1 and other information.

  FIG. 4 is a flowchart illustrating a procedure executed by the control device of the first embodiment. In step ST <b> 101 shown in FIG. 4, the information acquisition unit 36 c shown in FIG. 3 acquires the heat receiver temperature T <b> 1 from the heat receiver temperature sensor 38. Next, in step ST102, the information acquisition unit 36c acquires the map M1 shown in FIG. 2 from the storage unit 36d. Next, in step ST103, the information acquisition unit 36c sets a target value for the number of effective mirrors. Specifically, the information acquisition unit 36c sets the effective mirror number N calculated by applying the heat receiver temperature T1 acquired in step ST101 to the map M1 shown in FIG. 2 acquired in step ST102 as the target value. .

  For example, when the heat receiver temperature T1 is equal to or lower than the first predetermined temperature T1a of the map M1 shown in FIG. 2, the calculation unit 36b sets the maximum effective mirror number N as the target value. For example, when the heat receiver temperature T1 is higher than the second predetermined temperature T1b of the map M1 shown in FIG. 2, the calculation unit 36b sets the effective mirror number N, which is 0, to the target value. Further, for example, when the heat receiver temperature T1 is higher than the first predetermined temperature T1a of the map M1 shown in FIG. Set to the target value.

  Next, in step ST104, the operation control unit 36a operates the heliostat angle adjusting device 40 so that the actual number of effective mirrors becomes the target value set in step ST103. Thereby, the solar gas turbine power generator 1 shown in FIG. 1 can adjust the number of effective mirrors so that the heat receiver temperature T1 becomes an appropriate temperature. Therefore, the solar gas turbine power generator 1 can suppress a decrease in durability of the heat receiving pipe 21. Here, in the solar gas gas turbine power generator, when the heat receiver temperature T1 decreases and the temperature of the working fluid decreases, the amount of power generated by the generator 12 decreases. Since the solar gas turbine power generator 1 can suppress an unnecessary decrease in the amount of sunlight received by the heat receiver 20, it can suppress an unnecessary decrease in the temperature of the working fluid. Therefore, the solar gas turbine power generator 1 can also suppress a decrease in the amount of power generated by the generator 12.

  Here, as shown in FIG. 2, the calculation unit 36b of the present embodiment sets the effective mirror number N to a number between 0 and the maximum value in addition to 0 and the maximum value. It is not limited to the said structure. The calculation unit 36b may be configured to set the effective mirror number N to only 0 or the maximum value. In this case, the calculation unit 36b sets the effective mirror number N to the maximum value when the heat receiver temperature T1 is equal to or lower than the first predetermined temperature T1a. In addition, when the heat receiver temperature T1 is higher than the first predetermined temperature T1a, the calculation unit 36b sets the effective mirror number N to 0.

  Even in this configuration, the solar gas turbine power generator 1 can adjust the amount of sunlight received by the heat receiver 20 so that the temperature of the heat receiving pipe 21 approaches the appropriate temperature. Therefore, the solar gas turbine power generator 1 can suppress a decrease in the durability of the heat receiving pipe 21 while suppressing a decrease in the amount of power generated by the generator 12 due to a decrease in the temperature of the working fluid. However, the calculation unit 36b adjusts the amount of sunlight received by the heat receiver 20 more finely in the configuration in which the effective mirror number N can be set to a number between 0 and the maximum value in addition to 0 and the maximum value. it can. Therefore, the solar gas turbine power generator 1 is more suitable for the solar power received by the heat receiver 20 when the number of effective mirrors N can be set to a number between 0 and the maximum value in addition to 0 and the maximum value. An unnecessary decrease in the amount of light can be suppressed. Therefore, the solar thermal gas turbine power generator 1 can suppress a decrease in durability of the heat receiving pipe 21 while more preferably suppressing a decrease in the amount of power generated by the generator 12.

  Here, although the solar gas turbine power generator 1 which concerns on this embodiment is a structure which has the heliostat angle adjustment apparatus 40 as a calorie | heat amount adjustment means which adjusts the quantity of the sunlight guide | induced to the heat receiver 20, a solar gas turbine The power generation device 1 may be configured to include a blind device as a heat amount adjusting means. The blind device is, for example, a device that is provided between the heliostat 18 and the heat receiver 20 and blocks at least a part of sunlight guided from the heliostat 18 to the heat receiver 20. In this case, the solar gas turbine power generator 1 adjusts the amount of sunlight blocked by the blind device among the sunlight guided from the heliostat 18 to the heat receiver 20, so that the solar guided to the heat receiver 20. The amount of light is adjusted.

(Embodiment 2)
FIG. 5 is a configuration diagram illustrating a solar gas turbine power generator according to the second embodiment. As shown in FIG. 5, the solar thermal gas turbine power generator 2 according to Embodiment 2 includes an inlet guide vane 42, an inlet guide vane angle adjusting device 44 as a heat amount adjusting unit, and a control device 46. The inlet guide vane 42 is provided in a portion of the compressor 14 where the working fluid is introduced into the compressor 14. In the solar heat gas turbine power generator 2, the flow rate of the working fluid guided to the compressor 14 is changed by adjusting the angle of the inlet guide vane 42 with respect to the flow of the working fluid. The flow rate referred to here is the volume of the working fluid that passes through a section in the flow of the working fluid per unit time. The inlet guide vane angle adjusting device 44 is a device that adjusts the angle of the inlet guide vane 42 based on an input electric signal. As a result, the inlet guide vane angle adjusting device 44 adjusts the flow rate of the working fluid guided to the compressor 14.

  The control device 46 includes an operation control unit 46a, a calculation unit 46b, an information acquisition unit 46c, and a storage unit 46d. The motion control unit 46 a is electrically connected to the inlet guide blade angle adjusting device 44. Accordingly, the control device 46 controls the operation of the inlet guide blade angle adjusting device 44 to adjust the angle of the inlet guide blade 42. As a result, the control device 46 adjusts the flow rate of the working fluid guided to the compressor 14. The calculation unit 46b, the information acquisition unit 46c, and the storage unit 46d have the same functions as the calculation unit, the information acquisition unit, and the storage unit described in the first embodiment, respectively.

  Here, in the solar gas turbine power generator 2, when the flow rate of the working fluid led to the compressor 14 increases, the flow rate of the working fluid led to the heat receiver 20 also increases. Then, in the heat receiver 20, since more working fluid takes heat from the heat receiving pipe 21, the temperature of the heat receiving pipe 21 decreases. As a result, the control device 46 adjusts the flow rate of the working fluid guided to the compressor 14 to adjust the temperature of the heat receiving pipe 21, that is, the heat receiver temperature T1.

  FIG. 6 is a map showing the relationship between the heat receiver temperature and the working fluid flow rate. Hereinafter, the flow rate of the working fluid guided to the compressor 14 is set to a working fluid flow rate Q. The control device 46 adjusts the flow rate of the working fluid led to the heat receiver 20 as a result by adjusting the working fluid flow rate Q as shown in FIG. The controller 46 does not increase the working fluid flow rate Q until the heat receiver temperature T1 exceeds the first predetermined temperature T1c. Then, when the heat receiver temperature T1 exceeds the first predetermined temperature T1c, the control device 46 gradually increases the working fluid flow rate Q as the heat receiver temperature T1 increases. Then, when the heat receiver temperature T1 exceeds the second predetermined temperature T1d, the control device 46 sets the working fluid flow rate Q to a predetermined value, here a maximum value. Note that the maximum value here is a value at which the solar gas turbine power generator 2 can be operated sufficiently safely if the working fluid flow rate Q is less than or equal to this value.

  If the heat receiver temperature T1 is equal to or lower than the first predetermined temperature T1c, the first predetermined temperature T1c is a value that can sufficiently ensure the durability of the heat receiving pipe 21 even if the heat receiver temperature T1 is further increased. Further, the second predetermined temperature T1d is a value that can suppress a decrease in the durability of the heat receiving pipe 21 if the heat receiver temperature T1 is equal to or lower than the second predetermined temperature T1d. If the heat receiver temperature T1 is equal to or lower than the first predetermined temperature T1c, the control device 46 tries to bring the heat receiver temperature T1 closer to the first predetermined temperature T1c without increasing the working fluid flow rate Q. Further, when the heat receiver temperature T1 is higher than the first predetermined temperature T1c and equal to or lower than the second predetermined temperature T1d, the control device 46 gradually increases the working fluid flow rate Q so as to set the heat receiver temperature T1. 1 Trying to approach the predetermined temperature T1c. Further, when the heat receiver temperature T1 is higher than the second predetermined temperature T1d, the control device 46 tries to quickly reduce the heat receiver temperature T1 to the second predetermined temperature T1d or less by setting the working fluid flow rate Q to the maximum value. .

  As a result, the control device 46 tries to bring the heat receiver temperature T1 closer to the first predetermined temperature T1c, which is an appropriate temperature. As described above, the solar gas gas turbine power generator 2 can suppress a decrease in durability of the heat receiving pipe 21 while suppressing a decrease in the amount of power generated by the generator 12 due to a decrease in the temperature of the working fluid. Here, in the map shown in FIG. 6, for convenience of explanation, the working fluid flow rate Q is drawn in a straight line so that the working fluid flow rate Q is kept constant when the heat receiver temperature T1 is equal to or lower than the first predetermined temperature T1c. In practice, however, the working fluid flow rate Q guided to the compressor 14 may vary depending on, for example, the rotational speed of the rotating body 26 or the target value of the amount of power generated by the generator 12. Next, an example of a procedure executed by the control device 46 in order for the control device 46 to realize the above-described function will be described. In the following description, the graph shown in FIG. 6 is referred to as a map M2.

  FIG. 7 is a flowchart illustrating a procedure executed by the control device of the second embodiment. In step ST201 illustrated in FIG. 7, the information acquisition unit 46c acquires the heat receiver temperature T1 from the heat receiver temperature sensor 38. Next, in step ST202, the information acquisition unit 46c acquires a map M2 illustrated in FIG. 6 from the storage unit 46d. Next, in step ST203, the information acquisition unit 46c sets a target value for the flow rate of the working fluid guided to the compressor 14 illustrated in FIG. Specifically, the information acquisition unit 46c sets the working fluid flow rate Q calculated by applying the heat receiver temperature T1 acquired in step ST201 to the map M2 shown in FIG. 6 acquired in step ST202, as a target value. . The working fluid flow rate Q varies depending on the angle of the inlet guide vane 42 shown in FIG. Therefore, as a result, the information acquisition unit 46c derives the angle of the inlet guide vane 42 that can realize the working fluid flow rate Q, and inputs it to the inlet guide vane angle adjusting device 44 in order to realize the angle of the inlet guide vane 42. An electrical signal is generated.

  Next, in step ST204, the operation control unit 46a adjusts the inlet guide vane 42 so that the angle of the inlet guide vane 42 can achieve the working fluid flow rate Q that is the target value set in step ST203. The guide blade angle adjusting device 44 is operated. Thereby, the solar thermal gas turbine power generator 2 shown in FIG. 5 can adjust the working fluid flow rate Q so that the heat receiver temperature T1 becomes an appropriate temperature. Therefore, the solar thermal gas turbine power generation device 2 can suppress the temperature rise of the heat receiving pipe 21 and suppress the decrease in the durability of the heat receiving pipe 21.

  Here, the calculation part 46b of this embodiment is not limited to the structure which sets the working fluid flow volume Q gradually increasing, as shown in FIG. The calculation unit 46b may be configured to set the working fluid flow rate Q to only the minimum value or the maximum value. In this case, the arithmetic unit 46b sets the working fluid flow rate Q to the minimum value when the heat receiver temperature T1 is equal to or lower than the first predetermined temperature T1c. In addition, when the heat receiver temperature T1 is higher than the first predetermined temperature T1c, the calculation unit 46b sets the working fluid flow rate Q to the maximum value.

  Even in this configuration, the solar gas turbine power generator 2 can adjust the working fluid flow rate Q so that the temperature of the heat receiving pipe 21 approaches an appropriate temperature. Therefore, the solar gas turbine power generator 2 can suppress a decrease in durability of the heat receiving pipe 21. However, the calculation unit 46b is configured to set the working fluid flow rate Q more finely in the configuration in which the working fluid flow rate Q is gradually increased between the minimum value and the maximum value in addition to the minimum value and the maximum value. Can be adjusted. Therefore, the configuration in which the working fluid flow rate Q is gradually increased between the minimum value and the maximum value in addition to the minimum value and the maximum value is more preferably received by the solar gas turbine power generator 2. A decrease in durability of the heat tube 21 can be suppressed.

(Embodiment 3)
FIG. 8 is a configuration diagram illustrating a solar gas turbine power generator according to the third embodiment. The solar gas turbine power generator 3 according to the third embodiment adjusts the flow rate of the working fluid guided to the heat receiver 20 by a method different from that of the solar gas turbine power generator 2 according to the second embodiment. As shown in FIG. 8, the solar gas turbine power generator 3 includes a control device 48, a three-way valve 50 as a heat amount adjusting means, a first bypass passage 52, a second bypass passage 54, and a bypass as a heat amount adjusting means. A valve 56 and a shut-off valve 58. The control device 48 includes an operation control unit 48a, a calculation unit 48b, an information acquisition unit 48c, and a storage unit 48d. The calculation unit 48b, the information acquisition unit 48c, and the storage unit 48d have functions similar to those of the calculation unit, the information acquisition unit, and the storage unit described in the above embodiment, respectively. The three-way valve 50 is provided in the heat receiver front passage 30. In the control device 48, the three-way valve 50 has a first opening 50a, a second opening 50b, and a third opening 50c.

  In the solar gas turbine power generator 3, the heat receiver front passage 30 on the compressor 14 side is connected to the first opening 50a, and the heat receiver front passage 30 on the heat receiver 20 side is connected to the second opening 50b. One end of the first bypass passage 52 is connected to the third opening 50 c of the three-way valve 50, and the other end is connected to the heat receiver rear passage 32. As a result, the first bypass passage 52 allows the working fluid flowing through the heat receiver front passage 30 without the heat receiver 20 to pass through the heat receiver when the first opening 50a and the third opening 50c of the three-way valve 50 communicate with each other. It leads to the passage 32.

  The three-way valve 50 is electrically connected to the operation control unit 48a. Thus, in the control device 48, the operation control unit 48a controls the operation of the three-way valve 50. Specifically, the control device 48 adjusts the ratio between the flow rate of the working fluid guided from the first opening 50a to the second opening 50b and the flow rate of the working fluid guided from the first opening 50a to the third opening 50c. . The second bypass passage 54, the bypass valve 56, and the shut-off valve 58 can adjust the flow rate of the working fluid guided to the heat receiver 20 even if a malfunction occurs in the three-way valve 50 or the first bypass passage 52. Is provided.

  The second bypass passage 54 has one end connected to the heat receiver front passage 30 between the three-way valve 50 and the compressor 14, and the other end connected to the heat receiver rear passage 32. The bypass valve 56 is provided in the second bypass passage 54. The bypass valve 56 adjusts the flow rate of the working fluid flowing through the second bypass passage 54 toward the heat receiver rear passage 32. The shut-off valve 58 is provided in the heat receiver front passage 30 between the three-way valve 50 and the heat receiver 20. The shut-off valve 58 adjusts the flow rate of the working fluid flowing through the heat receiver front passage 30 toward the heat receiver 20.

  The bypass valve 56 and the shutoff valve 58 are electrically connected to the operation control unit 48a of the control device 48, respectively. As a result, in the control device 48, the operation control unit 48 a controls the operations of the bypass valve 56 and the shutoff valve 58. Specifically, the control device 48 adjusts the opening of the bypass valve 56 to adjust the flow rate of the working fluid that passes through the bypass valve 56. Further, the control device 48 adjusts the flow rate of the working fluid that passes through the shut-off valve 58 by adjusting the opening degree of the shut-off valve 58. Here, the bypass valve 56 and the shutoff valve 58 are controlled by the control device 48 when a malfunction occurs in the three-way valve 50 or the first bypass passage 52.

  When there is no problem in the three-way valve 50 or the first bypass passage 52, the solar gas turbine power generator 3 sets the opening degree of the bypass valve 56 to 0 and sets the opening degree of the shutoff valve 58 to the maximum value. . In the present embodiment, the bypass valve 56 and the shutoff valve 58 are valves each having an opening between 0 and the maximum value, but the bypass valve 56 and the shutoff valve 58 are 0 and the maximum value, respectively. It may be a valve having only an opening, a so-called on-off valve. However, when the bypass valve 56 and the shut-off valve 58 are valves each having an opening between 0 and the maximum value, the solar gas turbine power generator 3 has the three-way valve 50 or the first bypass passage 52. Even if a malfunction occurs, the flow rate of the working fluid guided to the heat receiver 20 can be adjusted more finely, which is preferable.

  FIG. 9 is a flowchart illustrating a procedure executed by the control device of the third embodiment. Each procedure from step ST301 to step ST303 shown in FIG. 9 is the same as each procedure from step ST201 to step ST203 shown in FIG. A map M3 used in step ST302 is the same map as the map M2 used in step ST202 shown in FIG. However, in the map M2 shown in FIG. 7, the vertical axis indicates the working fluid flow rate Q, but in the map M3, the vertical axis indicates the working fluid flow rate q. The working fluid flow rate q is a flow rate of the working fluid guided to the heat receiver 20. The map M3 is the same as the map M2 shown in FIG.

  In step ST304 illustrated in FIG. 9, the calculation unit 48b determines whether or not a malfunction has occurred in the three-way valve 50 or the first bypass passage 52. For example, the control device 48 is provided in the heat receiver pre-passage 30 between the shut-off valve 58 and the heat receiver 20 to detect the flow rate and pressure of the working fluid guided to the heat receiver 20, and the first bypass passage. The information acquisition unit 48c acquires a detection result from a sensor that is provided in 52 and detects the flow rate and pressure of the working fluid guided to the heat receiver rear passage 32. From the detection result, the calculation unit 48b selects the three-way valve 50 or the first one. It is determined whether or not a problem has occurred in the bypass passage 52.

  For example, when the control device 48 controls the three-way valve 50 so as not to guide the working fluid to the heat receiver 20, when the working fluid is guided to the heat receiver 20, the calculation unit 48 b It is determined that the valve 50 has a problem. For example, when the control fluid is controlling the three-way valve 50 so that the working fluid is not guided to the heat receiver 20, the working fluid is not flowing through the first bypass passage 52. Determines that at least one of the three-way valve 50 and the first bypass passage 52 is defective.

  If there is no malfunction in the three-way valve 50 or the first bypass passage 52 (step ST304, Yes), in step ST305, the operation control unit 48a can realize the working fluid flow rate q which is the target value set in step ST303. The three-way valve 50 is operated as described above. That is, the operation control unit 48a changes the ratio of the flow rate of the working fluid guided to the heat receiver 20 and the flow rate of the working fluid guided to the first bypass passage 52 so that the working fluid flow rate q can be realized. Next, the control apparatus 48 complete | finishes a series of procedures, and returns to step ST301.

  When a malfunction occurs in the three-way valve 50 or the first bypass passage 52 (No in Step ST304), the operation control unit 48a can realize the working fluid flow rate q that is the target value set in Step ST303 in Step ST306. Thus, the bypass valve 56 and the shutoff valve 58 are operated. That is, the operation control unit 48a changes the ratio between the flow rate of the working fluid guided to the heat receiver 20 and the flow rate of the working fluid guided to the second bypass passage 54 so that the working fluid flow rate q can be realized. Next, the control apparatus 48 complete | finishes a series of procedures, and returns to step ST301.

  Thereby, the solar gas turbine power generator 3 shown in FIG. 8 can adjust the flow rate of the working fluid guided to the heat receiver 20 so that the heat receiver temperature T1 becomes an appropriate temperature. Here, as described above, when the flow rate of the guided working fluid changes, the heat receiver 20 changes the temperature of the heat receiving pipe 21 because the amount of heat taken out from the heat receiving pipe 21 to the working fluid changes. As a result, the solar gas turbine power generator 3 can suppress the temperature rise of the heat receiving pipe 21 and can suppress the decrease in the durability of the heat receiving pipe 21.

(Embodiment 4)
FIG. 10 is a configuration diagram illustrating a solar gas turbine power generator according to the fourth embodiment. The solar gas turbine power generator 4 according to Embodiment 4 is characterized in that it adjusts both the amount of sunlight guided to the heat receiver 20 and the flow rate of the working fluid guided to the heat receiver 20. The solar gas turbine power generator 4 includes a control device 60 as shown in FIG. The control device 60 includes an operation control unit 60a, a calculation unit 60b, an information acquisition unit 60c, and a storage unit 60d. The operation controller 60a is electrically connected to the heliostat angle adjusting device 40 and the inlet guide blade angle adjusting device 44. Accordingly, the control device 60 controls the operation of the heliostat angle adjusting device 40. Therefore, the control device 60 adjusts the number of effective mirrors. As a result, the control device 60 adjusts the amount of sunlight guided to the heat receiver 20. The calculation unit 60b, the information acquisition unit 60c, and the storage unit 60d have the same functions as the calculation unit, the information acquisition unit, and the storage unit described in the above embodiment, respectively.

  The control device 60 controls the operation of the inlet guide blade angle adjusting device 44. As a result, the control device 60 adjusts the flow rate of the working fluid guided to the compressor 14. As a result, the control device 60 adjusts the flow rate of the working fluid guided to the heat receiver 20. Here, when the solar gas turbine power generator 4 includes the three-way valve 50 or the bypass valve 56 and the cutoff valve 58 shown in FIG. 8, the operation control unit 60 a of the control device 60 is the three-way valve 50 or the bypass valve 56 and the cutoff valve 58. May be electrically connected to control the operation of these valves. That is, the control device 60 may be configured to be able to adjust the flow rate of the working fluid guided to the heat receiver 20.

  FIG. 11 is a map showing the relationship between the heat receiver temperature and the number of effective mirrors, and the relationship between the heat receiver temperature and the working fluid flow rate. The control device 60 adjusts the flow rate of the working fluid guided to the heat receiver 20 by adjusting the working fluid flow rate Q as shown in FIG. The control device 60 does not increase the working fluid flow rate Q until the heat receiver temperature T1 exceeds the first predetermined temperature T1e. Then, when the heat receiver temperature T1 exceeds the first predetermined temperature T1e, the control device 60 increases the working fluid flow rate Q as the heat receiver temperature T1 increases. Then, when the heat receiver temperature T1 exceeds the second predetermined temperature T1f, the control device 60 sets the working fluid flow rate Q to the maximum value.

  If the heat receiver temperature T1 is equal to or lower than the first predetermined temperature T1e, the first predetermined temperature T1e is a value that can sufficiently ensure the durability of the heat receiving pipe 21 even if the heat receiver temperature T1 is further increased. Further, the second predetermined temperature T1f is a value that can sufficiently suppress a decrease in the durability of the heat receiving pipe 21 if the heat receiver temperature T1 is equal to or lower than the second predetermined temperature T1f. The second predetermined temperature T1f is a temperature higher than the first predetermined temperature T1e. If the heat receiver temperature T1 is equal to or lower than the first predetermined temperature T1e, the control device 60 attempts to bring the heat receiver temperature T1 closer to the first predetermined temperature T1e without increasing the working fluid flow rate Q. In addition, when the heat receiver temperature T1 is higher than the first predetermined temperature T1e and equal to or lower than the second predetermined temperature T1f, the control device 60 gradually increases the working fluid flow rate Q so that the heat receiver temperature T1 is increased. 1 Trying to approach the predetermined temperature T1e. Further, when the heat receiver temperature T1 is higher than the second predetermined temperature T1f, the control device 60 tries to quickly reduce the heat receiver temperature T1 to the second predetermined temperature T1f or less by setting the working fluid flow rate Q to the maximum value. .

  Moreover, the control apparatus 60 adjusts the quantity of sunlight which the heat receiver 20 receives by adjusting the effective mirror number N as shown in FIG. The controller 60 guides sunlight from all the mirrors 18a of the heliostat 18 to the heat receiver 20 until the heat receiver temperature T1 exceeds the second predetermined temperature T1f. Then, when the heat receiver temperature T1 exceeds the second predetermined temperature T1f, the control device 60 reduces the effective mirror number N as the heat receiver temperature T1 increases. Then, the control device 60 sets the effective mirror number N to 0 when the heat receiver temperature T1 exceeds the third predetermined temperature T1g.

  Here, the third predetermined temperature T1g is a value that can suppress a decrease in durability of the heat receiving pipe 21 if the heat receiver temperature T1 is equal to or lower than the third predetermined temperature T1g. The third predetermined temperature T1g is a temperature higher than the second predetermined temperature T1f. If the heat receiver temperature T1 is equal to or lower than the second predetermined temperature T1f, the controller 60 guides sunlight from all the mirrors 18a of the heliostat 18 to the heat receiver 20, and changes the heat receiver temperature T1 to the second predetermined temperature T1f. Try to get closer. Further, when the heat receiver temperature T1 is higher than the second predetermined temperature T1f and equal to or lower than the third predetermined temperature T1g, the control device 60 gradually reduces the effective mirror number N and sets the heat receiver temperature T1. 2 Trying to approach the predetermined temperature T1f. Further, when the heat receiver temperature T1 is higher than the third predetermined temperature T1g, the control device 60 attempts to quickly reduce the heat receiver temperature T1 to the third predetermined temperature T1g or less by setting the effective mirror number N to zero.

  FIG. 12 is a flowchart illustrating a procedure executed by the control device of the fourth embodiment. Each procedure of step ST401 and step ST402 shown in FIG. 12 is the same as each procedure of step ST301 and step ST302 shown in FIG. However, in step ST402, the map M4 shown in FIG. 11 is used instead of the map M3. In step ST403, the calculation unit 60b sets a working fluid flow rate target value that is a target value of the working fluid flow rate. Specifically, the information acquisition unit 60c applies the heat receiver temperature T1 acquired in step ST401 to the map M4 shown in FIG. 11 acquired in step ST402, thereby calculating the working fluid flow rate Q. Is set to the working fluid flow rate target value. In step ST403, the calculation unit 60b sets an effective mirror number target value that is a target value of the effective mirror number. Specifically, the calculation unit 60b sets the effective mirror number N calculated by applying the heat receiver temperature T1 acquired in step ST401 to the map M4 shown in FIG. 11 acquired in step ST402 as the effective mirror number target value. Set.

  Next, in step ST404, the operation control unit 60a causes the angle of the inlet guide vane 42 to be the angle of the inlet guide vane 42 that can achieve the working fluid flow rate Q that is the working fluid flow rate target value set in step ST403. Then, the inlet guide vane angle adjusting device 44 is operated. Further, in step ST404, the heliostat angle adjusting device 40 is operated so that the effective mirror number N that is the effective mirror number target value set in step ST403 is reached. Here, for example, when the current angle of the inlet guide vane 42 is the same as the angle of the inlet guide vane 42 capable of realizing the working fluid flow rate Q set in step ST403, the operation control unit 60a determines the inlet guide vane angle. The operation of the adjusting device 44 is controlled to maintain the angle of the inlet guide vane 42. In addition, for example, when the current number of mirrors 18 a that guide sunlight to the heat receiver 20 among the plurality of mirrors 18 a included in the heliostat 18 is the same as the set number, the operation control unit 60 a The operation of the stat angle adjusting device 40 is controlled to maintain the effective mirror number N. Next, the control apparatus 60 complete | finishes a series of procedures and returns to step ST401.

  When the control device 60 executes the above series of procedures, the solar gas turbine power generator 4 first increases the working fluid flow rate Q when the heat receiver temperature T1 rises. Thereby, since the heat quantity with which the heat receiver 20 is taken out by a working fluid increases, the raise of the temperature of the heat receiving pipe 21 is suppressed. Further, at this time, the solar gas turbine power generator 4 increases the flow rate of the working fluid led to the turbine 16 as a result of the increase in the flow rate of the working fluid led to the heat receiver 20. Therefore, since the amount of kinetic energy received by the turbine 16 also increases in the solar gas turbine power generator 4, power generation by the generator 12 is promoted.

  Then, the solar gas turbine power generation device 4 increases the heat receiver temperature T1 when the flow rate Q of the working fluid led to the compressor 14 reaches a maximum value which is a predetermined value and the heat receiver temperature T1 still increases. The number of effective mirrors N is reduced. Therefore, the solar gas turbine power generator 4 reduces the amount of sunlight received by the heat receiver 20. As a result, the solar gas turbine power generator 4 can suppress the increase in the heat receiver temperature T1 and suppress the decrease in the durability of the heat receiving pipe 21.

  Here, when the heat receiver temperature T1 rises, the solar gas turbine power generator 4 first starts reducing the amount of sunlight received by the heat receiver 20, and then the flow rate of the working fluid guided to the heat receiver 20 is increased. Even in the adjusted configuration, it is possible to suppress a decrease in durability of the heat receiving pipe 21. However, when the amount of sunlight received by the heat receiver 20 is reduced, the amount of power generated by the generator 12 in the solar gas turbine power generator 4 is also reduced. Therefore, the solar gas turbine power generator 4 first adjusts the flow rate Q of the working fluid guided to the compressor 14 to suppress the temperature rise of the heat receiving pipe 21, and when the temperature of the heat receiving pipe 21 still rises, It is preferable that the amount of sunlight guided to the heat receiver 20 is adjusted. Thereby, the solar gas gas turbine power generator 4 can suppress both the decrease in the durability of the heat receiving pipe 21 and the decrease in the amount of power generated by the generator 12 due to the decrease in the temperature of the working fluid. .

  Here, the solar gas turbine power generation device 1-4 according to each of the first to fourth embodiments has the flow rate of the working fluid guided to the heat receiver 20 and the heat receiver 20 based on the heat receiver temperature T1. Although it is the structure which adjusts at least one of the quantity of the induced | guided | derived sunlight, the solar gas turbine power generator 1-4 is based on the temperature of the working fluid which heat-exchanged with the heat receiver 20, for example, The configuration may be such that at least one of the flow rate of the working fluid guided to 20 and the amount of sunlight guided to the heat receiver 20 is adjusted. Hereinafter, the temperature of the working fluid that has exchanged heat with the heat receiver 20 is referred to as a working fluid temperature T2.

  In the solar gas turbine power generator 1-4, the working fluid temperature T2 and the heat receiver temperature T1 are correlated, and when the working fluid temperature T2 rises, the heat receiver temperature T1 also rises. Therefore, even if it is the structure which adjusts at least one of the flow volume of the working fluid guide | induced to the heat receiver 20, and the quantity of the sunlight guide | induced to the heat receiver 20 based on the working fluid temperature T2, a solar gas turbine The power generation device 1-4 can suppress a decrease in durability of the heat receiver. However, the heat receiver temperature T1 and the working fluid temperature T2 do not coincide in many cases. Therefore, based on the working fluid temperature T2, the map used in the case of a configuration that adjusts at least one of the flow rate of the working fluid guided to the heat receiver 20 and the amount of sunlight guided to the heat receiver 20 is: Although similar to the maps shown in FIGS. 2, 6, and 11, the value of each predetermined temperature may be different from the maps shown in FIGS. 2, 6, and 11.

  In the case of a configuration in which at least one of the flow rate of the working fluid guided to the heat receiver 20 and the amount of sunlight guided to the heat receiver 20 is adjusted based on the working fluid temperature T2, the solar gas turbine power generator 1- The control device 4 can more suitably control the amount of power generated by the generator 12 than when it is based on the heat receiver temperature T1. This is because the heat receiver temperature T1 and the working fluid temperature T2 may not match. If the flow rate of the working fluid guided to the turbine 16 is constant, the amount of power generated by the generator 12 varies depending on the working fluid temperature T2. Therefore, the control device 60 adjusts at least one of the flow rate of the working fluid guided to the heat receiver 20 and the amount of sunlight guided to the heat receiver 20 based on the more accurate working fluid temperature T2. The solar thermal gas turbine power generator 1-4 can adjust the amount of power generated by the generator 12 more accurately.

  However, in the case where priority is given to the suppression of the decrease in the durability of the heat receiving pipe 21, the solar gas turbine power generation device 1-4 uses the flow rate of the working fluid guided to the heat receiver 20 and the heat receiver 20 based on the heat receiver temperature T1. The structure which adjusts at least one of the quantity of the sunlight guide | induced to is preferable. This is because, in this configuration, the control device directly acquires the temperature of the metal member on the outer surface of the heat receiving pipe 21. Thereby, the control apparatus can adjust the temperature of the heat receiver 20 based on the more exact heat receiver temperature T1. Therefore, in the case of this configuration, the solar gas turbine power generator 1-4 can more suitably suppress a decrease in durability of the heat receiving pipe 21.

(Embodiment 5)
FIG. 13 is a configuration diagram illustrating a solar gas turbine power generator according to the fifth embodiment. The solar gas turbine power generator 5 according to the fifth embodiment is guided to the heat receiver 20 and the flow rate of the working fluid guided to the heat receiver 20 based on the two temperatures of the heat receiver temperature T1 and the working fluid temperature T2. It is characterized in that it adjusts the two with the amount of sunlight. As shown in FIG. 13, the solar thermal gas turbine power generator 5 includes a control device 62 and a working fluid temperature sensor 64. The working fluid temperature sensor 64 is provided in the heat receiver 20. Here, the working fluid that has exchanged heat with the heat receiving pipe 21 is stored in the outlet side tank 21b. The working fluid temperature sensor 64 is provided, for example, in the outlet side tank 21b. Thereby, the working fluid temperature sensor 64 detects the working fluid temperature T2.

  The control device 62 includes an operation control unit 62a, a calculation unit 62b, an information acquisition unit 62c, and a storage unit 62d. The operation control unit 62 a is electrically connected to the inlet guide blade angle adjusting device 44 and the heliostat angle adjusting device 40. The operation control unit 62a controls the operation of the inlet guide blade angle adjusting device 44 to adjust the flow rate of the working fluid guided to the compressor 14, and as a result, adjust the flow rate of the working fluid guided to the heat receiver 20. In addition, the operation control unit 62a controls the operation of the heliostat angle adjustment device 40 to adjust the number of effective mirrors, and as a result, adjusts the amount of sunlight guided to the heat receiver 20. The computing unit 62b has the same function as the computing unit described in the other embodiments described above.

  The information acquisition unit 62 c is electrically connected to the heat receiver temperature sensor 38 and the working fluid temperature sensor 64. The information acquisition unit 62c acquires the heat receiver temperature T1 from the heat receiver temperature sensor 38. In addition, the information acquisition unit 62c acquires the working fluid temperature T2 of the working fluid in the outlet side tank 21b from the working fluid temperature sensor 64. The storage unit 62d has the same function as the storage unit described in the other embodiments described above. Next, before describing the procedure executed by the control device 62, a map used by the control device 62 will be described. The control device 62 uses a map M4 shown in FIG. 11 and a map M5 described below.

  FIG. 14 is a map showing the relationship between the heat receiver temperature and the number of effective mirrors, and the relationship between the heat receiver temperature and the working fluid flow rate. The control device 62 adjusts the flow rate of the working fluid guided to the heat receiver 20 by adjusting the working fluid flow rate Q ′ as the second flow rate of the working fluid guided to the heat receiver 20 as shown in FIG. 14. Here, the first flow rate of the working fluid guided to the heat receiver 20 is a working fluid flow rate Q shown in FIG. The working fluid flow rate Q ′ is a flow rate of the working fluid guided to the compressor 14. The control device 62 does not increase the working fluid flow rate Q ′ guided to the compressor 14 until the working fluid temperature T2 exceeds the first predetermined temperature T2a. Then, when the working fluid temperature T2 exceeds the first predetermined temperature T2a, the control device 62 increases the working fluid flow rate Q 'guided to the compressor 14 as the working fluid temperature T2 increases. Then, when the working fluid temperature T2 exceeds the second predetermined temperature T2b, the control device 62 sets the working fluid flow rate Q 'guided to the compressor 14 to the maximum value.

  If the working fluid temperature T2 is equal to or lower than the first predetermined temperature T2a, the first predetermined temperature T2a is a value that can maintain the power generation amount by the generator 12 within an allowable range even if the working fluid temperature T2 is further increased. . Further, the second predetermined temperature T2b is a value that can maintain the power generation amount by the generator 12 within a sufficiently allowable range if the working fluid temperature T2 is equal to or lower than the second predetermined temperature T2b. The second predetermined temperature T2b is a temperature higher than the first predetermined temperature T2a.

  If the working fluid temperature T2 is equal to or lower than the first predetermined temperature T2a, the control device 62 brings the working fluid temperature T2 closer to the first predetermined temperature T2a without increasing the working fluid flow rate Q ′ guided to the compressor 14. And The control device 62 gradually increases the working fluid flow rate Q ′ guided to the compressor 14 when the working fluid temperature T2 is higher than the first predetermined temperature T2a and equal to or lower than the second predetermined temperature T2b. The working fluid temperature T2 tends to approach the first predetermined temperature T2a. Further, when the working fluid temperature T2 is higher than the second predetermined temperature T2b, the control device 62 sets the working fluid flow rate Q ′ guided to the compressor 14 to the maximum value and quickly sets the working fluid temperature T2 to the second predetermined temperature. Attempts to make temperature T2b or lower.

  Further, the control device 62 adjusts the amount of sunlight received by the heat receiver 20 by adjusting the effective mirror number N ′ as the second amount of sunlight guided to the heat receiver 20 as shown in FIG. To do. The control device 62 guides sunlight from all the mirrors 18a of the heliostat 18 to the heat receiver 20 until the working fluid temperature T2 exceeds the second predetermined temperature T2b. Then, when the working fluid temperature T2 exceeds the second predetermined temperature T2b, the control device 62 reduces the effective mirror number N ′ as the working fluid temperature T2 increases. Then, when the working fluid temperature T2 exceeds the third predetermined temperature T2c, the control device 62 sets the effective mirror number N ′ to zero.

  Here, the third predetermined temperature T2c is a value that can maintain the power generation amount by the generator 12 within an allowable range if the working fluid temperature T2 is equal to or lower than the third predetermined temperature T2c. The third predetermined temperature T2c is higher than the second predetermined temperature T2b. When the working fluid temperature T2 is equal to or lower than the second predetermined temperature T2b, the control device 62 guides sunlight from all the mirrors 18a of the heliostat 18 to the heat receiver 20, and the working fluid temperature T2 is changed to the second predetermined temperature T2b. Try to get closer.

  In addition, when the working fluid temperature T2 is higher than the second predetermined temperature T2b and equal to or lower than the third predetermined temperature T2c, the control device 62 gradually reduces the effective mirror number N ′ to reduce the working fluid temperature T2. An attempt is made to approach the second predetermined temperature T2b. In addition, when the working fluid temperature T2 is higher than the third predetermined temperature T2c, the control device 62 sets the effective mirror number N ′ to 0 and tries to quickly lower the working fluid temperature T2 to the third predetermined temperature T2c or less. .

  FIG. 15 is a flowchart illustrating a procedure executed by the control device of the fifth embodiment. In step ST501, the information acquisition unit 62c acquires the heat receiver temperature T1 from the heat receiver temperature sensor 38. The information acquisition unit 62 c acquires the working fluid temperature T <b> 2 from the working fluid temperature sensor 64. Next, in step ST502, the information acquisition unit 62c acquires a map M4 shown in FIG. 11 and a map M5 shown in FIG. 14 from the storage unit 62d. Next, in step ST503, the calculation unit 62b determines whether or not the working fluid flow rate Q is equal to or higher than the working fluid flow rate Q '. Here, the working fluid flow rate Q is a value calculated by applying the heat receiver temperature T1 acquired in step ST501 to the map M4 shown in FIG. The working fluid flow rate Q ′ is a value calculated by applying the working fluid temperature T2 acquired in step ST501 to the map M5 shown in FIG.

  When the working fluid flow rate Q is equal to or higher than the working fluid flow rate Q ′ (step ST503, Yes), in step ST504, the calculation unit 62b sets the working fluid flow rate Q to the working fluid flow rate target value. When the working fluid flow rate Q ′ is larger than the working fluid flow rate Q (No in step ST503), in step ST505, the calculation unit 62b sets the working fluid flow rate Q ′ to the working fluid flow rate target value. That is, the computing unit 62b sets the larger value of the working fluid flow rate Q and the working fluid flow rate Q ′ as the working fluid flow rate target value.

  After step ST504 or step ST505, in step ST506, the calculation unit 62b determines whether or not the effective mirror number N is equal to or greater than the effective mirror number N ′. Here, the effective mirror count N is a value calculated by applying the heat receiver temperature T1 acquired in step ST501 to the map M4 shown in FIG. The effective mirror number N corresponds to a first amount of sunlight guided to the heat receiver 20. The effective mirror number N ′ is a value calculated by applying the working fluid temperature T2 acquired in step ST501 to the map M5 shown in FIG. The effective mirror number N ′ corresponds to a second amount of sunlight guided to the heat receiver 20.

  When the effective mirror number N is equal to or less than the effective mirror number N ′ (Yes in Step ST506), the calculation unit 62b sets the effective mirror number N to the effective mirror number target value in Step ST507. When the effective mirror number N ′ is smaller than the effective mirror number N (No in step ST503), in step ST508, the calculation unit 62b sets the working fluid flow rate Q ′ to the effective mirror number target value. That is, the calculation unit 62b sets the smaller one of the effective mirror number N and the effective mirror number N ′ as the effective mirror number target value.

  After step ST507 or step ST508, in step ST509, the operation control unit 62a determines that the angle of the inlet guide vane 42 can realize the target value of the working fluid flow rate set in step ST504 or step ST505. The inlet guide blade angle adjusting device 44 is operated so that the angle becomes 42. In step ST509, the operation control unit 62a operates the heliostat angle adjusting device 40 so that the effective mirror number N becomes the effective mirror number target value set in step ST507 or step ST508. Next, the control apparatus 62 complete | finishes a series of procedures, and returns to step ST501.

  By executing the above procedure, the control device 62 allows the flow rate of the working fluid guided to the heat receiver 20 to be the larger value of the working fluid flow rate Q and the working fluid flow rate Q ′. The angle of the guide vane 42 is adjusted. Here, as the amount of the working fluid guided to the heat receiver 20 is larger, the solar gas turbine power generator 5 is suppressed from increasing in the temperature of the heat receiving pipe 21. In addition, the solar gas turbine power generator 5 is also prevented from increasing the temperature of the working fluid by the heat receiver 20. That is, the larger value of the working fluid flow rate Q and the working fluid flow rate Q ′ is a safer value than the other value. Therefore, the control device 62 controls the operation of the inlet guide vane 42 using a safer value as a target value. As a result, the solar gas turbine power generator 5 can more suitably suppress at least one of the rise in the temperature of the heat receiving pipe 21 and the rise in the temperature of the working fluid by the heat receiver 20.

  Further, the control device 62 adjusts the angle of the mirror 18a of the heliostat 18 so that the effective mirror number becomes a smaller value of the effective mirror number N and the effective mirror number N ′. Here, as the solar thermal gas turbine power generation device 5 has a smaller number of effective mirrors, an increase in the temperature of the heat receiving pipe 21 is suppressed. In addition, the solar gas turbine power generator 5 is also prevented from increasing the temperature of the working fluid by the heat receiver 20. That is, the smaller value of the effective mirror number N and the effective mirror number N ′ is a safer value than the other value. Therefore, the control device 62 controls the operation of the heliostat angle adjusting device 40 using a safer value as a target value. As a result, the solar gas turbine power generator 5 can more suitably suppress at least one of the rise in the temperature of the heat receiving pipe 21 and the rise in the temperature of the working fluid by the heat receiver 20.

  Further, by using the map M4 shown in FIG. 11, when the heat receiver temperature T1 rises, the control device 62 first adjusts the working fluid flow rate Q and then adjusts the effective mirror number N. Thus, the solar gas turbine power generator 5 first adjusts the flow rate Q of the working fluid guided to the compressor 14 to suppress the temperature rise of the heat receiving pipe 21 and the temperature rise of the working fluid by the heat receiver 20. Even so, when the temperature of the heat receiver 20 rises, the amount of sunlight guided to the heat receiver 20 is adjusted. Therefore, the solar gas gas turbine power generator 5 can suppress a decrease in the amount of power generated by the generator 12 by suppressing an unnecessary decrease in the temperature of the working fluid while suppressing a decrease in the durability of the heat receiving pipe 21.

  Further, by using the map M5 shown in FIG. 14, when the working fluid temperature T2 rises, the control device 62 first adjusts the working fluid flow rate Q 'and then adjusts the effective mirror number N'. As a result, the solar gas turbine power generator 5 first adjusts the working fluid flow rate Q ′ to suppress the temperature rise of the working fluid by the heat receiver 20, and when the temperature of the working fluid still rises, the heat receiver The amount of sunlight directed to 20 is adjusted. Therefore, the solar thermal gas turbine power generation device 5 can suppress a decrease in the amount of power generated by the generator 12 while suppressing an increase in the temperature of the working fluid more than necessary. Here, the solar gas gas turbine power generator 5 can adjust the power generation amount by the generator 12 more accurately by suppressing the temperature of the working fluid from rising more than necessary.

  As described above, the solar gas turbine power generator according to the present invention is useful for a technology for generating power using sunlight heat, and is particularly suitable for suppressing a decrease in durability of the heat receiver.

1-5 Solar Thermal Gas Turbine Generator 12 Generator 14 Compressor 16 Turbine 18 Heliostat (Solar Concentrator)
18a Mirror 20 Heat receiver 21 Heat receiving pipe 21a Inlet side tank 21b Outlet side tank 22 Reheater 24 Chimney 26 Rotating body 28 Input shaft 30 Heat receiver front passage 32 Heat receiver rear passage 34 Exhaust passage 36, 46, 48, 60, 62 Control device 36a, 46a, 48a, 60a, 62a Operation control unit 36b, 46b, 48b, 60b, 62b Calculation unit 36c, 46c, 48c, 60c, 62c Information acquisition unit 36d, 46d, 48d, 60d, 62d Storage unit 38 Heat receiving unit Temperature sensor 40 Heliostat angle adjustment device (heat quantity adjustment means)
42 Inlet guide vane 44 Inlet guide vane angle adjusting device (heat quantity adjusting means)
50 Three-way valve (heat quantity adjustment means)
50a First opening 50b Second opening 50c Third opening 52 First bypass passage 54 Second bypass passage 56 Bypass valve (heat amount adjusting means)
58 Shut-off valve (heat quantity adjusting means)
64 Working fluid temperature sensor M1, M2, M3, M4, M5 Map N, N7 'Effective number of mirrors Q, Q', q Working fluid flow rate T1 Heat receiver temperature T1a, T1c, T1e, T2a First predetermined temperature T1b, T1d, T1f, T2b Second predetermined temperature T1g, T2c Third predetermined temperature T2 Working fluid temperature

Claims (11)

A solar concentrator that collects sunlight,
A compressor for compressing the working fluid;
A heat receiver for transferring the heat of sunlight collected by the solar light collecting device to the working fluid compressed by the compressor;
A turbine that receives a working fluid heat-exchanged by the heat receiver and obtains a rotational force;
A generator that generates electric power by receiving rotational force from the turbine;
A heat amount adjusting means for adjusting the amount of heat entering and exiting the heat receiver;
A solar thermal gas turbine power generator comprising: The calorific value adjusting means is
2. The solar gas turbine power generator according to claim 1, wherein an amount of heat that enters and exits the heat receiver is adjusted based on a heat reception state of the working fluid by the heat receiver. What is the heat reception status?
A heat receiver temperature which is a temperature of the heat receiver;
A working fluid temperature that is a temperature of a working fluid led from the heat receiver to the turbine;
The solar gas turbine power generator according to claim 2, wherein the temperature is at least one of the temperatures. The calorific value adjusting means is
By adjusting at least one of the amount of sunlight guided from the solar light collecting device to the heat receiver and the flow rate of the working fluid guided from the compressor to the heat receiver, the heat receiver enters and exits the heat receiver. The amount of heat to be adjusted is adjusted, The solar thermal gas turbine power generator as described in any one of Claims 1-3 characterized by the above-mentioned. The calorific value adjusting means is
The solar gas turbine power generator according to claim 4, wherein the amount of sunlight guided to the heat receiver is decreased as the heat receiver temperature or the working fluid temperature is increased. The calorific value adjusting means is
6. The solar gas turbine power generator according to claim 4, wherein the flow rate of the working fluid guided to the heat receiver is increased as the heat receiver temperature or the working fluid temperature is increased. The calorific value adjusting means is
Based on two temperatures, a heat receiver temperature that is the temperature of the heat receiver and a working fluid temperature that is a temperature of a working fluid led from the heat receiver to the turbine,
A first amount of sunlight guided to the heat receiver when based on the heat receiver temperature and a second amount of sunlight guided to the heat receiver when based on the working fluid temperature are calculated. ,
7. The amount of sunlight guided to the heat receiver is adjusted so that the smaller one of the first amount and the second amount is set. A solar gas turbine power generator according to claim 1. The calorific value adjusting means is
Based on two temperatures, a heat receiver temperature that is the temperature of the heat receiver and a working fluid temperature that is a temperature of a working fluid led from the heat receiver to the turbine,
A first flow rate of the working fluid led to the heat receiver when based on the heat receiver temperature and a second flow rate of the working fluid led to the heat receiver when based on the working fluid temperature are calculated. ,
8. The amount of sunlight guided to the heat receiver is adjusted so that the larger one of the first flow rate and the second flow rate is obtained. A solar gas turbine power generator according to claim 1. The calorific value adjusting means is
9. The amount of sunlight guided to the heat receiver is adjusted after the flow rate of the working fluid guided from the compressor to the heat receiver reaches a predetermined value. A solar gas turbine power generator according to claim 1. A solar concentrator that collects sunlight,
A compressor for compressing the working fluid;
A heat receiver for transferring the heat of sunlight collected by the solar light collecting device to the working fluid compressed by the compressor;
A turbine that receives a working fluid heat-exchanged by the heat receiver and obtains a rotational force;
A generator that generates electric power by receiving rotational force from the turbine;
A control method for controlling a solar gas turbine power generator comprising:
At least one of the flow rate of the working fluid guided from the compressor to the heat receiver and the amount of sunlight guided from the solar light collecting device to the heat receiver is transferred to the working fluid by the heat receiver. The solar gas turbine power generation method characterized by adjusting based on a heat receiving condition.   The solar gas according to claim 10, wherein the amount of sunlight guided to the heat receiver is adjusted after a flow rate of the working fluid guided from the compressor to the heat receiver reaches a predetermined value. Turbine power generation method.

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