JP2010281272A - Solar heat gas turbine and solar heat gas turbine generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solar heat gas turbine stably and continuously operable by achieving the stable supply of a compressive working fluid without depending on unstable factors including weather. <P>SOLUTION: The solar heat gas turbine GT1 includes a compressor 1 sucking air (compressive working fluid) and pressurizing, a heat receiver 2 using the heat of solar light collected by a collector and heating the high pressure air compressed by the compressor 1 to a high temperature, and a turbine 3 converting the heat energy of the high-temperature and high-pressure air into mechanical energy. A fossil fuel-burning auxiliary combustor 7 is installed in parallel to the heat receiver 2, and a three-way valve 21 is provided as a distribution control means for the high-pressure air supplied to the heat receiver 2 and the auxiliary combustor 7. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a solar gas turbine and a solar gas turbine power generator driven using a compressive working fluid such as air generated using sunlight, and more particularly, to a solar gas turbine and a solar gas turbine power generator. It relates to measures to reduce solar heat.

In recent years, natural energy such as sunlight and wind power has attracted attention in order to solve environmental problems such as global warming.
Therefore, a solar gas turbine that uses sunlight, which is one of the natural energies, to generate and drive a compressible working fluid of high temperature and high pressure by the heat of sunlight, and a generator is driven by this solar gas turbine. Solar gas turbine power generators that generate electricity have been proposed.

  A solar gas turbine GT shown in FIG. 6 includes a compressor 1 that compresses and pressurizes a compressive working fluid, a heat receiver 2 that heats and compresses the compressive working fluid with heat converted from sunlight, and a high temperature and pressure And a turbine 3 that converts thermal energy held by the compressive working fluid into mechanical energy. That is, the solar thermal gas turbine GT uses solar thermal energy to heat a high-pressure compressive working fluid instead of a combustor that burns a fuel such as natural gas to generate a high-temperature and high-pressure combustion gas. A heat receiver 2 is provided for raising the temperature.

The heat receiver 2 in this case is a device for converting sunlight into heat energy, and heats high-pressure compressive working fluid using heat of light collected by a light collector (heliostat) (not shown). To increase the temperature.
Moreover, if the generator 4 is connected coaxially with the solar thermal gas turbine GT, and the generator 4 is driven by the solar thermal gas turbine GT, a solar thermal gas turbine power generator that generates power using sunlight is obtained. Reference numeral 5 in the drawing preheats the high-pressure compressive working fluid boosted by the compressor 1 using the exhaust heat of the compressive working fluid discharged from the chimney 6 to the atmosphere after working in the turbine 3. For the reheater.

  On the other hand, a conventional cogeneration power generator using a gas turbine includes a gas turbine that drives a combustion air compressor and an expansion turbine for power generation, and the combustion gas is supplied to the gas turbine that drives the combustion air compressor. It has been proposed to use a heater in place of the combustor supplying the. In this case, the heater uses exhaust heat from other heat sources including solar heat instead of fuel supply. (For example, see Patent Document 1)

Japanese Patent Laid-Open No. 62-135619

  By the way, since the above-mentioned conventional solar gas turbine power generator operates using sunlight, which is natural energy, the intensity of sunlight that heats the compressive working fluid constantly varies depending on the weather and the like. For this reason, in an operating situation in which sufficient solar heat cannot be obtained in the heat receiver 2, for example, in an operating situation in which the solar heat is reduced to about 40 to 50% of the design point, the temperature is higher than that of the turbine 3 of the solar gas turbine GT. It becomes difficult to stably supply a high-pressure compressive working fluid. As a result, the solar gas turbine GT has a problem that unless sufficient solar heat is obtained, it is difficult to continue the operation, and eventually the operation is stopped.

For this reason, in a solar thermal gas turbine and a solar thermal gas turbine power generator, it is desired that stable operation can be continued without being affected by weather fluctuations or the like.
The present invention has been made in view of the above circumstances, and its object is to enable a stable supply of a compressive working fluid without being affected by unstable factors such as the weather, and stable operation. It is an object of the present invention to provide a solar gas turbine and a solar gas turbine power generator that can be continued.

In order to solve the above problems, the present invention employs the following means.
A solar gas turbine according to claim 1 of the present invention includes a compressor that sucks and pressurizes a compressive working fluid, and a compressive working fluid that is boosted by the compressor by the heat of sunlight collected by a condenser. A solar gas turbine comprising: a heat receiver that heats and raises temperature; and a turbine that converts thermal energy held by a high-temperature and high-pressure compressive working fluid into mechanical energy. A fired auxiliary combustor is installed, and a distribution amount adjusting means for compressive working fluid supplied to the heat receiver and the auxiliary combustor is provided.

  According to such a solar gas turbine, a fossil fuel-fired auxiliary combustor is installed in parallel with the heat receiver, and the distribution amount adjusting means (such as a three-way valve) for compressive working fluid supplied to the heat receiver and the auxiliary combustor is provided. Because it is provided, the heat receiver outlet temperature (turbine inlet temperature) of the compressible working fluid is maintained at a desired value by adjusting the distribution amount of the compressive working fluid and the fuel supply amount of the auxiliary combustor according to the intensity of solar heat. can do.

  A solar gas turbine according to claim 2 of the present invention includes a compressor that sucks and pressurizes a compressive working fluid, and a compressive working fluid that is boosted by the compressor by the heat of sunlight collected by a condenser. A solar gas turbine comprising a heat receiver that heats and raises temperature, and a turbine that converts thermal energy held by a high-temperature and high-pressure compressive working fluid into mechanical energy, wherein fossil fuel is connected in series with the heat receiver It is characterized by the installation of thatched auxiliary combustor.

According to such a solar thermal gas turbine, a fossil fuel-fired auxiliary combustor is installed in series with the heat receiver, so if the fuel supply amount of the auxiliary combustor is adjusted according to the intensity of solar heat, the compressive working fluid The heat receiver outlet temperature (turbine inlet temperature) can be maintained at a desired value.
In this case, in the configuration in which the heat receiver is installed on the downstream side (turbine side), since it is not necessary to handle the high-temperature compressive working fluid heated by the heat receiver, the wall surface temperature of the auxiliary combustor can be reduced.
In addition, when air is used for the compressive working fluid and the heat receiver is installed upstream (compressor side), the fossil fuel supplied to the auxiliary combustor can be burned with high-temperature air. Emissions of minutes are reduced.

  The solar gas turbine according to claim 2, wherein the auxiliary combustor is installed on the downstream side of the heat receiver to form a bypass flow path that bypasses the auxiliary combustor and reaches the turbine, and the bypass flow It is preferable to provide a distribution amount adjusting means for adjusting the bypass flow rate at the branching portion of the passage, whereby the flow rate of the compressive working fluid heated by the auxiliary combustor can be adjusted by changing the bypass flow rate. Therefore, even if the temperature increase width of the auxiliary combustor is small, the amount of compressive working fluid heated by the auxiliary combustor can be limited to obtain good combustion stability.

  In the solar gas turbine according to claim 2, the auxiliary combustor is installed on the upstream side of the heat receiver, and a bypass flow path that bypasses the auxiliary combustor and reaches the heat receiver is formed. It is preferable to provide a distribution amount adjusting means for adjusting the bypass flow rate at the branch portion of the flow path, whereby the flow rate of the compressive working fluid heated by the auxiliary combustor can be adjusted by changing the bypass flow rate. Therefore, even when the temperature increase width of the auxiliary combustor is small, the amount of compressive working fluid heated by the auxiliary combustor can be limited to obtain good combustion stability.

  A solar thermal gas turbine power generator according to the present invention comprises the solar thermal gas turbine according to any one of claims 1 to 4 and a generator that generates power by being driven by the solar thermal gas turbine. is there.

  According to such a solar thermal gas turbine power generator, since it includes the solar thermal gas turbine according to any one of claims 1 to 4 and a generator that generates power by being driven by the solar thermal gas turbine, the intensity of solar heat Therefore, if the heating capacity of the auxiliary combustor is effectively utilized, the heat receiver outlet temperature (turbine inlet temperature) of the compressive working fluid can be maintained at a desired value and the solar gas turbine can be stably operated. A generator driven by a solar gas turbine can perform stable power generation.

  According to the above-described present invention, even in an operation situation where solar heat, which is natural energy, cannot be sufficiently obtained, the heating capacity of the auxiliary combustor is effectively used according to the intensity of solar heat, and the outlet of the compressive working fluid is received by the heat receiver. The temperature (turbine inlet temperature) is maintained at a desired value, so that stable operation of the solar gas turbine can be continued. Therefore, the generator driven by the solar gas turbine having stable dynamic characteristics can continue stable power generation even in an operating situation where sufficient solar heat cannot be obtained.

1 is a configuration diagram (system diagram) showing a first embodiment of a solar gas turbine and a solar gas turbine power generator according to the present invention. It is a block diagram (system diagram) which shows 2nd Embodiment about the solar gas turbine and solar gas turbine power generator concerning this invention. It is a block diagram (system diagram) which shows a 1st modification about the solar gas turbine and solar gas turbine power generator which concern on 2nd Embodiment shown in FIG. It is a block diagram (system diagram) which shows a 2nd modification about the solar gas turbine and solar gas turbine power generator which concern on 2nd Embodiment shown in FIG. It is a block diagram (system diagram) which shows a 3rd modification about the solar gas turbine and solar gas turbine power generator which concern on 2nd Embodiment shown in FIG. It is a block diagram (system diagram) which shows the prior art example of a solar thermal gas turbine and a solar thermal gas turbine power generator.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a solar gas turbine and a solar gas turbine power generator according to the present invention will be described with reference to the drawings.
<First Embodiment>
In the embodiment shown in FIG. 1, the solar gas turbine GT1 is pressurized by the compressor 1 by the compressor 1 that sucks and pressurizes the compressive working fluid, and the heat of sunlight collected by a condenser (not shown). The heat receiving device 2 for heating the compressible working fluid to raise the temperature, and the turbine 3 for converting the thermal energy held by the high-temperature and high-pressure compressive working fluid into mechanical energy.
The illustrated solar gas turbine GT1 is a solar gas turbine power generator that generates power using sunlight by providing the generator 4 coaxially connected to the compressor 1 and the turbine 3.

The compressor 1 is a device that sucks in a compressible working fluid and compresses the compressed working fluid to a predetermined high pressure, and is driven using a part of the output generated by the coaxial turbine 3. As the compressive working fluid compressed by the compressor 1, for example, air sucked from the atmosphere is used. In the following description, the compressive working fluid is described as air, but the present invention is not limited to this.
The air of the compressive working fluid pressurized by the compressor 1 is guided to the heat receiver 2 through the high-pressure air flow path 11. In the illustrated configuration example, a reheater 5 and a three-way valve 21 described later are provided in the middle of the high-pressure air flow path 11.

  The reheater 5 is a device that exchanges heat between the high-pressure air that has been pressurized by the compressor 1 and the high-temperature air that has worked in the turbine 3. That is, the reheater 5 uses the exhaust heat of the high-temperature air that works in the turbine 3 and is released from the chimney 6 to the atmosphere, and preheats the high-pressure air to preheat the solar gas turbine GT1 and the solar gas turbine power generator. It is a heat exchanger that improves the thermal efficiency of the.

The high-pressure air that has been preheated when passing through the reheater 5 and has risen in temperature from the outlet temperature of the compressor 1 is guided to the heat receiver 2 through the high-pressure air passage 11 and the three-way valve 21.
The heat receiver 2 is a device for converting sunlight into heat energy, and heats high-pressure air using heat of light collected by a condenser (not shown), so that the temperature of the high-pressure air is increased. Can do. That is, the heat receiver 2 is a heating device that heats the piping and the high-pressure air in the piping by irradiating light from the condenser to a large number of piping through which the high-pressure air flows.

In the concentrator, with respect to the outlet temperature of the high-temperature high-pressure air heated by the heat receiver 2, the load operation in which the generator 4 is operated with respect to the turbine rotational speed when the solar gas turbine GT 1 that does not operate the generator 4 is accelerated. Sometimes, the amount of heat input to the heat receiver 2 is controlled by adjusting the angle so as to be a predetermined temperature with respect to the turbine load.
Further, the heat input to the heat receiver 2 is controlled by the condenser so that the pipe temperature of the heat receiver 2 does not exceed a predetermined temperature.

The high-pressure air heated by the heat receiver 2 becomes high-temperature high-pressure air having an outlet temperature of about 900 ° C., for example, and is supplied to the turbine 3 through the high-temperature high-pressure air flow path 12.
The high-temperature and high-pressure air supplied to the turbine 3 expands when passing between the moving blades / stator blades in the turbine, and rotates the turbine shaft integrated with the moving blades to generate turbine output. The output generated by the turbine 3 is used as a driving force for the compressor 1 and the generator 4 connected coaxially. The high-temperature and high-pressure air that has worked in the turbine 3 becomes high-temperature and high-pressure air (hereinafter also referred to as “used air”) whose pressure and temperature are reduced from the turbine inlet, and is guided to the reheater 5 through the exhaust passage 13. It is burned. The used air is preheated by the reheater 5 through the high-pressure air flow path 11, and then the temperature is further lowered and discharged from the chimney 6 to the atmosphere.

  And the solar-heated gas turbine GT1 described above is provided with an auxiliary combustor 7 for burning fossil fuel in parallel with the heat receiver 2. The auxiliary combustor 7 branches from the high-pressure air flow path 11 via a three-way valve 21 and is installed in a heat receiver bypass flow path 22 that bypasses the heat receiver 2 and is connected to the turbine 3. Accordingly, the amount of high-pressure air supplied to the heat receiver 2 and the auxiliary combustor 7 can be adjusted to a predetermined distribution amount by operating the three-way valve 21 provided as high-pressure air distribution amount adjusting means. That is, the high-temperature and high-pressure air that has been heated by passing through the heat receiver 2 and the high-temperature and high-pressure air that has been heated by the auxiliary combustor 7 by bypassing the heat receiver 2 are merged upstream of the turbine 3. Depending on the distribution amount and the heating amount of the auxiliary combustor 7, the heat receiver outlet temperature of the high-temperature high-pressure air supplied to the turbine 3 can be adjusted. In other words, the high-temperature and high-pressure air supplied to the turbine 3 is distributed to the heat receiver 2 and the auxiliary combustor 7 and adjusted, and the fuel supply amount of the auxiliary combustor 7 is adjusted to adjust the turbine supply amount. The inlet temperature can be controlled and maintained at a predetermined value.

The above-described three-way valve 21 distributes so that the temperature of the heat receiver outlet of the high-temperature and high-pressure air becomes a predetermined value according to the intensity of sunlight, that is, the turbine inlet temperature of the high-temperature and high-pressure air becomes a predetermined value. Adjust. Also, the distribution flow is adjusted so that the pipe temperature of the heat receiver 2 does not exceed a predetermined temperature and become high.
Such adjustment of the distribution amount is performed based on, for example, a temperature detection unit such as a thermocouple provided in the outlet pipe of the heat receiver 2, and the temperature of the high temperature and high pressure air detected by the temperature detection unit. In addition, for the pipe temperature of the heat receiver 2, temperature detection means such as thermocouples are provided at appropriate locations (multiple locations) in the heat receiver 2, and the distribution amount is adjusted based on the pipe temperature detected by the temperature detection means. To do.

If the outlet temperature of the heat receiver does not reach a predetermined high temperature even after adjusting the distribution amount described above, it is determined that the operating condition is such that the intensity of sunlight is low and sufficient heating cannot be received. In such an operating situation, fuel is supplied to the auxiliary combustor 7 for combustion, and the high-pressure air passing through the auxiliary combustion device 7 is heated by bypassing the heat receiver 2.
At this time, in the operation situation where the generator 4 is generating electric power, the bypass flow rate of the high-pressure air passing through the auxiliary combustor 7 and the fuel supply amount of the auxiliary combustor 7 set the output of the solar thermal gas turbine GT1 to a predetermined value. Adjusted to increase or decrease to maintain.
However, in an operating situation where the generator 4 is not generating power, the bypass flow rate of the high-pressure air passing through the auxiliary combustor 7 and the fuel supply amount of the auxiliary combustor 7 set the rotational speed of the solar thermal gas turbine GT1 to a predetermined value. Adjusted to increase or decrease to maintain.

  When the turbine inlet temperature of the high-temperature and high-pressure air rises to a predetermined temperature, the amount of fuel supplied to the auxiliary combustion device 7 is limited to reduce the heating capacity. Further, when the turbine inlet temperature of the high-temperature high-pressure air rises to a predetermined temperature, in addition to limiting the fuel supply amount, the bypass flow rate of the high-pressure air flowing to the auxiliary combustion device 7 is reduced so that the fuel supply amount and the bypass flow rate are reduced. Both may be reduced to reduce the heating capacity. The above-described turbine inlet temperature is measured by attaching a temperature detection means such as a thermocouple to the high temperature and high pressure air inlet of the turbine 3, or the used air temperature flowing out of the turbine 3 and the turbine inlet pressure of the high temperature and high pressure air You may estimate by calculation using.

In this way, by heating the high-pressure air using the auxiliary combustor 7 arranged in parallel with the heat receiver 2, the intensity of sunlight, which is a natural energy that fluctuates rapidly, is weak, and the heat receiver 2 receives sufficient heat. Even in an operation situation where the temperature is not high, high temperature and high pressure air heated to a predetermined temperature can be supplied to the turbine 3 by supplementing the shortage of sunlight by heating the auxiliary combustor 7.
As a result, even in an operating situation where sufficient solar heat cannot be obtained, the heat receiving outlet temperature (turbine inlet temperature) of high-temperature and high-pressure air is set to a predetermined value by effectively utilizing the heating capacity of the auxiliary combustor 7 according to the intensity of solar heat. It is possible to continue the stable operation of the solar thermal gas turbine GT1 while maintaining the above value. Therefore, the generator 4 driven by the solar gas turbine GT1 has a stable dynamic characteristic, and it is possible to continue stable power generation even in an operation situation where solar heat cannot be sufficiently obtained.
In the above-described embodiment, the reheater 5 is provided to preheat the high-pressure air. However, it is possible to configure so as not to preheat depending on various conditions.

<Second Embodiment>
Next, a solar gas turbine and a solar gas turbine power generator according to the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to embodiment mentioned above, and the detailed description is abbreviate | omitted.
A solar gas turbine GT2 shown in FIG. 2 is similar to the above-described embodiment in that it includes a compressor 1 that sucks air (compressible working fluid) and pressurizes it, and the heat of sunlight collected by a condenser 1 The heat receiver 2 that heats and raises the temperature of the high-pressure air that has been increased in step 1 and the turbine 3 that converts thermal energy held by the high-temperature and high-pressure air into mechanical energy are provided. In addition, although the reheater 5 is provided in embodiment of illustration, it is not limited to this.

  In the solar gas turbine GT <b> 2 of the present embodiment, the fossil fuel-fired auxiliary combustor 7 is installed in series with the heat receiver 2. In the configuration example of FIG. 2, the heat receiver 2 is installed on the downstream side (turbine 3 side) of the auxiliary combustor 7. Therefore, the auxiliary combustor 7 needs to handle high-temperature and high-pressure air heated by the heat receiver 2. Therefore, the wall surface temperature of the auxiliary combustor 7 can be reduced. That is, the heat resistant temperature can be set low for the wall material of the auxiliary combustor 7.

In the solar gas turbine GT2 configured as described above, the amount of fuel supplied to the auxiliary combustor 7 is adjusted according to the intensity of sunlight, and the outlet air temperature of the heat receiver 2 is maintained at a predetermined high temperature. Further, the fuel supply amount of the auxiliary combustion device 7 is adjusted so that the pipe temperature of the heat receiver 2 does not become a high temperature of a predetermined value or higher. As a result, by adjusting the fuel supply amount of the auxiliary combustor 7 according to the intensity of solar heat, the heat receiver outlet temperature (turbine inlet temperature) of the high-temperature high-pressure air can be maintained at a predetermined value.
In the solar gas turbine GT2 of this embodiment, the auxiliary combustor 7 is arranged in series, so that the distribution amount of high-temperature air cannot be adjusted, but other operation control is the same as in the above-described embodiment. It is.

As a result, even in an operating situation where sufficient solar heat cannot be obtained, the heat receiving outlet temperature (turbine inlet temperature) of high-temperature and high-pressure air is set to a predetermined value by effectively utilizing the heating capacity of the auxiliary combustor 7 according to the intensity of solar heat. It is possible to continue the stable operation of the solar gas turbine GT2 while maintaining the above value. Therefore, the generator 4 driven by the solar gas turbine GT2 has a stable dynamic characteristic, and it is possible to continue stable power generation even in an operation situation where solar heat cannot be sufficiently obtained.
In the above-described embodiment, the reheater 5 is provided to preheat the high-pressure air. However, it is possible to configure so as not to preheat depending on various conditions.

Next, a first modification of the present embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to embodiment mentioned above, and the detailed description is abbreviate | omitted.
In the solar gas turbine GT3 of the first modification shown in FIG. 3, the order of the heat receiver 2 and the auxiliary combustor 7 arranged in series is reversed. That is, the heat receiver 2 is installed on the upstream side (compressor 1 side) of the auxiliary combustor 7. Even if such a configuration is adopted, similarly to the above-described embodiment, by adjusting the fuel supply amount of the auxiliary combustor 7 according to the intensity of solar heat, the receiver outlet temperature of the high-temperature and high-pressure air (turbine inlet temperature) ) Can be maintained at a desired value.

  In particular, since air is used as the compressive working fluid and the heat receiver 2 is installed on the upstream side of the auxiliary combustor 7, the fossil fuel supplied to the auxiliary combustor 7 uses high-temperature air supplied from the heat receiver 2. Can be used and burned. For this reason, in the auxiliary combustor 7, good combustion of the fossil fuel is promoted, and the amount of unburned fuel discharged from the auxiliary combustor 7 can be reduced.

Next, a second modification of the present embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to embodiment mentioned above, and the detailed description is abbreviate | omitted.
In the solar gas turbine GT4 of the second modification shown in FIG. 4, the auxiliary combustor 7 is installed on the downstream side of the heat receiver 2. A combustor bypass passage 32 that bypasses the auxiliary combustor 7 and reaches the turbine 3 is formed, and a three-way valve is provided at a branch portion of the combustor bypass passage 32 as a distribution amount adjusting means for adjusting the bypass flow rate. 31 is provided.

  Since the solar gas turbine GT4 having such a configuration distributes and flows to the combustor bypass flow path 32 by operating the opening degree of the three-way valve 31, the bypass flow rate that bypasses the auxiliary combustor 7 and is not heated. Therefore, the amount of high-pressure air heated by the auxiliary combustor 7 can be adjusted. Therefore, even when the temperature rise width of the auxiliary combustor 7 is small, the amount of high-temperature air heated by the auxiliary combustor 7 can be limited to obtain good combustion stability. That is, the heating capacity of the auxiliary combustor 7 can be set to a relatively small setting.

Finally, a third modification of the present embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part similar to embodiment mentioned above, and the detailed description is abbreviate | omitted.
In the solar gas turbine GT5 of the third modification shown in FIG. 5, the auxiliary combustor 7 is installed on the upstream side of the heat receiver 2. A combustor bypass flow path 42 that bypasses the auxiliary combustor 7 and reaches the heat receiver 2 is formed, and a branching portion of the combustor bypass flow path 42 has three-way distribution amount adjusting means for adjusting the bypass flow rate. A valve 41 is provided.

  Since the solar gas turbine GT5 having such a configuration distributes and flows to the combustor bypass passage 42 by operating the opening degree of the three-way valve 41, it bypasses the auxiliary combustor 7 and does not receive heat. Therefore, the amount of high-pressure air heated by the auxiliary combustor 7 can be adjusted. Therefore, similarly to the above-described second modification, even when the temperature increase width of the auxiliary combustor 7 is small, the high-temperature air amount can be limited to obtain good combustion stability. That is, the heating capacity of the auxiliary combustor 7 can be set to a relatively small setting.

Thus, according to each embodiment mentioned above, even in the driving | running condition which cannot fully obtain the solar heat which is natural energy, according to the intensity | strength of solar heat, the heating capability of the auxiliary combustor 7 is utilized effectively, and high temperature high pressure The air heat receiver outlet temperature (turbine inlet temperature) is maintained at a predetermined value, and stable operation of the solar gas turbine can be continued. As a result, during the operation of the solar gas turbine and the solar gas turbine power generator, it is possible to obtain stable dynamic characteristics and continue stable power generation even in an operation situation where solar heat cannot be sufficiently obtained.
In addition, this invention is not limited to embodiment mentioned above, For example, the presence or absence of the reheater 5 is not limited, For example, it can change suitably in the range which does not deviate from the summary.

DESCRIPTION OF SYMBOLS 1 Compressor 2 Heat receiver 3 Turbine 4 Generator 5 Reheater 6 Chimney 7 Auxiliary combustor 11 High pressure air flow path 12 High temperature high pressure air flow path 13 Exhaust flow path 21, 31, 41 Three-way valve (distribution amount adjustment means)
22 Heat receiver bypass flow path 32, 42 Combustor bypass flow path GT1-GT5 Solar gas turbine

Claims (5)

A compressor that sucks and pressurizes the compressive working fluid; a heat receiver that heats and raises the temperature of the compressible working fluid that has been boosted by the compressor by the heat of sunlight collected by the condenser; In a solar gas turbine configured to include a turbine that converts thermal energy held by a compressive working fluid into mechanical energy,
A solar gas turbine, wherein a fossil fuel-fired auxiliary combustor is installed in parallel with the heat receiver, and a compressive working fluid distribution amount adjusting means for supplying the heat receiver and the auxiliary combustor is provided. A compressor that sucks and pressurizes the compressive working fluid; a heat receiver that heats and raises the temperature of the compressible working fluid that has been boosted by the compressor by the heat of sunlight collected by the condenser; In a solar gas turbine configured to include a turbine that converts thermal energy held by a compressive working fluid into mechanical energy,
A solar gas turbine characterized in that a fossil fuel-fired auxiliary combustor is installed in series with the heat receiver.   Distributing amount for installing the auxiliary combustor downstream of the heat receiver, forming a bypass flow path that bypasses the auxiliary combustor and reaches the turbine, and adjusts a bypass flow rate at a branch portion of the bypass flow path The solar gas turbine according to claim 2, further comprising an adjusting unit.   Distribution that installs the auxiliary combustor upstream of the heat receiver, forms a bypass flow path that bypasses the auxiliary combustor and reaches the heat receiver, and adjusts a bypass flow rate at a branch portion of the bypass flow path The solar gas turbine according to claim 2, further comprising an amount adjusting unit. A solar gas turbine power generator comprising the solar gas turbine according to any one of claims 1 to 4 and a power generator that is driven by the solar gas turbine to generate electric power.

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