JP2003090228A - Gas turbine power generating installation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To utilize an existing gas turbine power generating installation for achieving generating power satisfying the demand of a user and improving the generating efficiency when a generating load required by the user exceeds the generating power of the existing gas turbine power generating installation. SOLUTION: The gas turbine power generating installation having two-shaft reheat regenerative cycles comprises a generator and an inverter provided on each shaft to form a reheat regenerative cycle structure operable with both shafts having the independent numbers of rotation. It is a second feature that a boosting gas turbine power generating installation is connected to the existing regenerative gas turbine power generating installation as a base by performing relatively easy changing work for high-temperature gas piping to form the two-shaft reheat regenerative cycle structure.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a gas turbine power generation facility to which a reheat regeneration cycle is applied.

[0002]

2. Description of the Related Art Recently, a gas turbine power generation facility having a regenerative heat exchanger has been studied while operating a generator using a gas turbine of several tens to several hundreds of kW. In such a gas turbine power generation facility, for example, JP-A-8-14
Japanese Patent Publication No. 9722 discloses a reheat regeneration cycle gas turbine power generation system having a two-shaft configuration in which air is stored as liquid air instead of being stored as high pressure air.

[0003]

DISCLOSURE OF THE INVENTION In the prior art,
If the power generation load required by the user exceeds the power generation output of the gas turbine power generation facility, a gas turbine power generation facility with specifications that satisfy the power generation load required by the user must be newly developed in addition to the existing gas turbine power generation facility. .

At this time, when a new power generation facility is added to the existing power generation facility to form a two-axis structure, both shafts are finally electrically coupled, so that the power generation frequency of the both shafts is not changed. Care must be taken to make the difference smaller than about 3-5%. Therefore, there is a problem that the two shaft systems cannot be controlled and operated under the independent rotation speed.

An object of the present invention is to provide a gas turbine power generation facility that enables two shaft systems to operate at independent rotational speeds and that has improved power generation efficiency.

[0006]

In order to achieve the above object, the gas turbine equipment of the present invention comprises a compressor for compressing air, and the air compressed by the compressor and the fuel are mixed and burned. A combustor, a turbine driven by combustion gas generated in the combustor, a regenerative heat exchanger for exchanging heat between exhaust gas of the turbine and discharge air from the compressor, the compressor, and A base gas turbine power generation facility and a boost gas turbine power generation facility each having a generator that is provided on the same shaft as the turbine and that is driven by the turbine to generate power, and the base gas turbine power generation facility and the boost gas turbine power generation An inverter that converts the power generation frequency of the generator installed on the shaft is provided in each of the facilities, and a regenerative heat exchanger of the base gas turbine power generation facility is provided. Combustor of the first gas turbine power generation equipment, turbine of the boost gas turbine power generation equipment and combustor of the base gas turbine power generation equipment, compressor of the base gas turbine power generation equipment and generator of the boost gas turbine power generation equipment, the base gas A flow that connects the hot gas side passages of the regenerative heat exchanger of the turbine power generation equipment and the boost gas turbine power generation equipment, and the low temperature gas side passages of the base gas turbine power generation equipment and the regenerative heat exchanger of the boost gas turbine power generation equipment. It is characterized by the provision of a road.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a method for improving power generation efficiency of a gas turbine power generation facility according to the present invention will be described in detail with reference to FIG.

FIG. 1 shows the system configuration of an embodiment for carrying out the method for improving the power generation efficiency of a gas turbine power generation facility according to the present invention. This gas turbine power generation facility can be realized by connecting two regenerative gas turbines (base gas turbine power generation facility 101 and boost gas turbine power generation facility 102) each having a single-axis configuration with different specifications, and reheat regeneration with a two-axis configuration. It has become a cycle.

Each component device and its operation in the gas turbine power generation facility of this embodiment will be described in detail with reference to FIG. The system configuration of the biaxial reheat regeneration cycle can be described by the solid line, so only the system configuration shown by the solid line will be described here.

The air 21 sucked from the outside is compressed by the first compressor 1, then further pressurized in the second compressor 2, and flows into the first regenerative heat exchanger 3 and the second regenerative heat exchanger 4. . Here, the cost may be reduced by making the first regenerative heat exchanger 3 and the second regenerative heat exchanger 4 have the same specifications.

In the first regenerative heat exchanger 3 and the second regenerative heat exchanger 4, the intake air compressed by the second compressor 2 recovers heat from the exhaust gas from the second turbine 8 and is preheated to be the first combustor. Guided to 5.

In the first combustor 5, the intake air preheated by the first regenerative heat exchanger 3 and the second regenerative heat exchanger 4 is mixed and combusted with the first fuel 22 to become high temperature combustion gas, and the first turbine 6 Flow into.

The first turbine 6 extracts the energy of the combustion gas as rotational power by adiabatically expanding the combustion gas flowing from the first combustor 5, and drives the second compressor 2 and the first generator 9. . Here, the second compressor 2,
The first generator 9 and the first turbine 6 are provided on the first rotating shaft 31.

The electric power generated by the driven first generator 9 is supplied after the frequency is converted by the first inverter 12 according to the demand destination. The provision of the first inverter 12 enables the operation in which the output voltage of the first generator 9 is controlled and the rotation speed of the first rotary shaft 31 is set independently of the second rotary shaft 32.

In the second combustor 7, the exhaust gas from the first turbine 6 is mixed and combusted with the second fuel 23 to become high temperature combustion gas, which flows into the second turbine 8. Here, the second combustor 7 does not necessarily have the same specifications as the first combustor 5, but the cost may be reduced by using the same specifications except for the nozzle.

The second turbine 8 does not have to have the same specifications as the first turbine 6 except for the maximum inlet temperature, and the combustion gas flowing from the second combustor 7 is adiabatically expanded to generate the combustion gas. The energy is taken out as rotational power to drive the second generator 10. Here, the second generator 10 and the second turbine 8 are mounted on a second rotary shaft 32 different from the first rotary shaft 31 provided with the second compressor 2, the first generator 9 and the first turbine 6. It is provided.

The electric power generated by the driven second generator 10 is supplied after the frequency is converted by the second inverter 13 according to the demand destination. By providing the second inverter 13, the output voltage of the second generator 10 can be controlled to perform the operation in which the rotation speed of the second rotary shaft 32 is set independently of the first rotary shaft 31.

The exhaust gas from the second turbine 8 is heat-recovered by heat exchange with the discharge air from the second compressor 2 in the first regenerative heat exchanger 3 and the second regenerative heat exchanger 4, and then the gas turbine. Emitted outside the power generation facility.

The following two methods can be applied as a method of starting this gas turbine power generation facility.

As a first method, compressed air is sent to the first turbine 6 to drive the first turbine 6, and when the rotation speed of the first rotating shaft 31 becomes equal to or higher than the self-sustaining rotation speed, the first method is performed. The first fuel 22 is supplied to the combustor 5 and ignited.

As a second method, the first generator 9 is used as a motor for starting the gas turbine power generation equipment. That is, the second compressor 2 and the first turbine 6 are driven by the first generator 9 which is a motor, and when the rotation speed of the first rotating shaft 31 becomes equal to or higher than the self-sustaining rotation speed, One fuel 22 is supplied to ignite. When this starting method is adopted, the first generator 9 is used as a generator while the gas turbine power generation equipment is generating power.

The operation of making the output power of the gas turbine power generation equipment follow the load fluctuation of the demand destination is performed by changing the outputs of the first turbine 6 and the second turbine 8.

When the rotational speeds of the first rotary shaft 31 provided with the first turbine 6 and the first generator 9 and the second rotary shaft 32 provided with the second turbine 8 and the second generator 10 change, Although the frequency of the electric power generated by the first generator 9 and the second generator 10 also changes, the generation frequency is always matched with the demand destination because the first inverter 12 and the second inverter 13 are provided. Further, instead of the first inverter 12 and the second inverter 13, a variable transmission may be provided on each shaft to control the frequency of the generated power.

When the user reduces the output power from the output power of the gas turbine power generation equipment to the power generation output of only the base gas turbine power generation equipment, or when some abnormality occurs during operation of the boost gas turbine power generation equipment 102. By operating the three-way valves 61 at all the pipe changing work points, it is possible to instantly switch to the independent operation of only the base gas turbine power generation equipment 101.

A method of connecting the base gas turbine power generation facility 101 and the boost gas turbine power generation facility 102 for constructing a reheat regeneration cycle having a biaxial configuration in the gas turbine power generation facility of this embodiment will be described in detail with reference to FIG. explain.

To connect the base gas turbine power generation facility 101 and the boost gas turbine power generation facility 102, the following five pipe changing operations are required. In addition, when performing the piping change work, the three-way valve 6
1 will be provided.

As a first pipe changing operation, in the base gas turbine power generation facility 101, the first compressor discharge base pipe 41 shown by a dotted line for guiding intake air from the first compressor 1 to the second regenerative heat exchanger 4 is installed. A first compressor discharge boost pipe 51 indicated by a solid line that guides intake air from the first compressor 1 to the second compressor intake intake port in the boost gas turbine power generation facility 102 is connected.

As a second pipe changing work, in the base gas turbine power generation facility 101, the upstream side of the second combustor inflow base pipe 42 indicated by a dotted line for guiding intake air from the second regenerative heat exchanger 4 to the second combustor 7. The second regenerator 4 to the first combustor 5 in the boost gas turbine power generation facility 102.
The first combustor inflow boost pipe 52 shown by a solid line that guides intake air to is connected.

As a third pipe changing work, in the base gas turbine power generation equipment 101, the second combustor inflow base pipe 42 downstream shown by a dotted line for guiding intake air from the second regenerative heat exchanger 4 to the second combustor 7 In the boost gas turbine power generation facility 102, a second combustor inflow boost pipe 53 indicated by a solid line that guides intake air from the first turbine 6 to the second combustor 7 in the base gas turbine power generation facility 101 is connected to the section.

The first and second regenerative heat exchangers 3 in the boost gas turbine power generation facility 102 and the second regenerative heat exchanger 4 in the base gas turbine power generation facility 101 are connected by the fourth and fifth pipe changing operations.

As a fourth pipe changing work, in the base gas turbine power generation facility 101, the first compressor discharge base pipe 41 shown by a dotted line for guiding intake air from the first compressor 1 to the second regenerative heat exchanger 4 is installed. , A solid line that guides intake air from the low temperature gas side flow path of the first regenerative heat exchanger 3 in the boost gas turbine power generation equipment 102 to the low temperature gas side flow path of the second regenerative heat exchanger 4 in the base gas turbine power generation equipment 101 The low temperature gas side boost pipe 54 shown in (1) is connected.

As a fifth pipe changing work, in the base gas turbine power generation equipment 101, the base gas turbine power generation equipment shown by a dotted line for exhausting gas from the second regenerative heat exchanger 4 to the outside of the base gas turbine power generation equipment 101. In the exhaust gas pipe 43, from the outlet high temperature gas side flow path of the second regenerative heat exchanger 4 in the base gas turbine power generation equipment 101 to the first regenerative heat exchanger 3 in the boost gas turbine power generation equipment 102.
A second regenerative heat exchanger inlet high temperature gas side boost pipe 55 shown by a solid line that guides intake air to the inlet high temperature gas side flow path of is connected.

In the fourth and fifth pipe changing operations,
The standards of the low temperature gas side pipe and the high temperature gas side pipe of the first regenerative heat exchanger 3 and the second regenerative heat exchanger 4 may be unified to facilitate the connecting work.

By performing the above-mentioned five pipe changing operations, it is possible to construct a gas turbine power generation facility having a reheat regeneration cycle having a biaxial configuration as shown in FIG.

As described above, according to this embodiment,
Even if the power generation load required by the user exceeds the output of the existing gas turbine power generation facility alone, reheat regeneration with a twin-screw configuration that enables independent control of both shafts using the existing gas turbine power generation facility By constructing a cycle, it is possible to satisfy the power generation load required by the user and improve the power generation efficiency.

Next, another embodiment of the gas turbine power generation facility according to the present invention will be described with reference to FIG. The gas turbine power generation facility shown in FIG. 2 is a large-scale regenerative heat exchanger having a heat transfer area enough to balance a reheat regeneration cycle constructed by connecting a base gas turbine power generation facility 101 and a boost gas turbine power generation facility 102. Boost gas turbine power generation facility 10 with large-scale regenerative heat exchanger that is equipped with 11 in advance
3 is connected to the base gas turbine power generation facility 101 to have a reheat regeneration cycle configuration.

In this case, since the second regenerative heat exchanger 4 is not used and only the large regenerative heat exchanger 11 is used, the first and third pipe changing work described in the previous embodiment is performed. Instead of the second, fourth, and fifth pipe changing work described in the previous embodiment, the pipe changing work described below is performed.

That is, the base gas turbine power generation facility 1
In 01, in the base gas turbine power generation equipment exhaust gas pipe 43 shown by the dotted line for exhausting gas from the second regenerative heat exchanger 4 to the outside of the base gas turbine power generation equipment 101,
Large regenerative heat exchanger inlet high temperature gas shown by a solid line for guiding intake air to the high temperature gas side inlet passage of the large regenerative heat exchanger 11 in the boost gas turbine power generation facility 103 with large regenerative heat exchanger via the three-way valve 61 The side boost pipe 56 is connected.

The starting method of the gas turbine power generation equipment and the operating method of making the output power follow the load fluctuation of the demand destination of this embodiment are the same as those of the previous embodiment and will be omitted.

Next, another embodiment of the gas turbine power generation facility according to the present invention will be described with reference to FIG. The gas turbine power generation facility shown in FIG. 3 is a large-scale regenerative heat exchanger having a heat transfer area enough to balance a reheat regeneration cycle constructed by connecting a base gas turbine power generation facility 101 and a boost gas turbine power generation facility 102. Base gas turbine power generation facility 104 with a large-scale regenerative heat exchanger that is equipped with 11 in advance
In addition, a reheat regeneration cycle configuration is constructed by connecting a boost gas turbine power generation facility 105 without a regenerative heat exchanger that does not have a regenerative heat exchanger in advance.

In this case, since it is sufficient to use only the large-sized regenerative heat exchanger 11, the pipe changing work from the first to third described in the first embodiment is performed, and the fourth described in the first embodiment is performed. And instead of the fifth pipe changing work, the pipe changing work described below is performed.

That is, in the large-scale regenerative heat exchanger-equipped base gas turbine power generation facility 104, the first compressor discharge base large-scale pipe 44 shown by a dotted line for guiding intake air from the first compressor 1 to the large-scale regenerative heat exchanger 11 is provided. , From the second compressor 2 in the boost gas turbine power generation facility 105 without a regenerative heat exchanger to the base gas turbine power generation facility 104 with a large regenerative heat exchanger
A large-scale regenerative heat exchanger inlet low-temperature gas-side boost pipe 57 indicated by a solid line that guides intake air through a three-way valve 61 to the low-temperature gas-side flow path of the large-scale regenerative heat exchanger 11 therein is connected.

The starting method of the gas turbine power generation equipment and the operating method of making the output power follow the load fluctuation of the demand destination of this embodiment are the same as those of the previous embodiment and will be omitted.

Next, the cycle heat balance calculation is performed in the gas turbine power generation equipment including the reheat regeneration cycle of the biaxial configuration and the base gas turbine power generation equipment in which the method for improving the power generation efficiency of the gas turbine power generation equipment shown in FIG. 1 is performed. FIG. 4 shows the results of comparison of the power generation output and power generation efficiency obtained by the calculation between the gas turbine power generation facility according to this embodiment and the gas turbine power generation facility according to the related art.

In the heat balance calculation here, the outside air conditions and the specifications of the base gas turbine power generation equipment 101 are the same. The specifications of the boost gas turbine power generation facility 102 are the same as those of the base gas turbine power generation facility 101 in terms of the efficiency of each component, but the pressure ratios of the second compressor 2 and the first turbine 6 are the same as those of this embodiment. The temperature and pressure of the exhaust gas from the gas turbine power generation equipment were determined to be 2.4 so that they would be the same as the temperature and pressure of the exhaust gas from the base gas turbine power generation equipment 101. In order to simplify the calculation, the specific heat of the working fluid and kerosene, which is the fuel, was kept constant, and the pressure loss was ignored, including between the first regenerative heat exchanger 3 and the second regenerative heat exchanger 4.

In FIG. 4, the vertical axis represents the power generation efficiency and power generation efficiency standardized with the power generation efficiency and power generation output at the rated load of the base gas turbine power generation facility 101 as 100%.

According to this calculation result, when comparing the gas turbine power generation equipment of this embodiment with the gas turbine power generation equipment related to the prior art, the power generation output is increased by 47% and the power generation efficiency is also improved by 20%.

This is because in the gas turbine power generation facility of this embodiment, the temperature of the exhaust gas from the first turbine 6 is high, so the second fuel required to reburn the exhaust gas from the first turbine 6 is used. 23 is a relatively small amount, and because the heat energy added in the first combustor 5 is recovered by the first regenerative heat exchanger 3 and the second regenerative heat exchanger 4, the regenerated heat exchange amount is increased. Is.

[0049]

According to the present invention, it is possible to operate the two shaft systems at independent rotation speeds and to provide a gas turbine power generation facility with improved power generation efficiency.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a reheat regeneration type gas turbine power generation facility according to an embodiment of the present invention.

FIG. 2 is a system configuration diagram of a reheat regeneration type gas turbine power generation facility when only a regenerative heat exchanger of a boost gas turbine power generation facility according to an embodiment of the present invention is used.

FIG. 3 is a system configuration diagram of a reheat regeneration gas turbine power generation facility when only a regenerative heat exchanger of the base gas turbine power generation facility according to the present invention is used.

FIG. 4 is a comparison diagram of power generation efficiency and power generation output between the base gas turbine power generation facility of the present embodiment and a conventional gas turbine power generation facility.

[Explanation of symbols]

1 ... 1st compressor, 2 ... 2nd compressor, 3 ... 1st regeneration heat exchanger, 4 ... 2nd regeneration heat exchanger, 5 ... 1st combustor, 6 ... 1st turbine, 7 ... 2nd combustion Reactor, 8 ... second turbine, 9 ... first generator, 10 ... second generator, 11 ... large-scale regenerative heat exchanger, 12 ... first inverter, 13 ... second inverter, 2
DESCRIPTION OF SYMBOLS 1 ... Air, 22 ... 1st fuel, 23 ... 2nd fuel, 31 ... 1st rotating shaft, 32 ... 2nd rotating shaft, 41 ... 1st compressor discharge base piping, 42 ... 2nd combustor inflow base piping, 43 ... Base gas turbine power generation equipment exhaust gas pipe, 44 ... First compressor discharge base large pipe, 51 ... First compressor discharge boost pipe, 52 ... First combustor inflow boost pipe, 53 ... Second combustor inflow boost Pipes, 54 ... First regeneration heat exchanger outlet low temperature gas side boost pipe, 55 ... Second regeneration heat exchanger inlet high temperature gas side boost pipe, 56 ... Large regeneration heat exchanger inlet high temperature gas side boost pipe, 57 ... Large regeneration Heat exchanger inlet low temperature gas side boost pipe, 61 ... Three-way valve, 101 ... Base gas turbine power generation facility, 102 ... Boost gas turbine power generation facility, 103 ... Boost gas turbine power generation facility with large regenerative heat exchanger , 104 ... large regenerative heat exchanger with the base gas turbine generator, 105 ... regenerative heat exchanger without boost the gas turbine power generation facility.

Continued front page    (72) Inventor Kuniyoshi Tsubouchi             2-12-1 Omika-cho, Hitachi-shi, Ibaraki Prefecture             Ceremony Company Hitachi, Ltd. (72) Inventor Yasuaki Akatsu             2-12-1 Omika-cho, Hitachi-shi, Ibaraki Prefecture             Ceremony Company Hitachi, Ltd. (72) Inventor Hiroshi Arita             2-12-1 Omika-cho, Hitachi-shi, Ibaraki Prefecture             Ceremony Company Hitachi, Ltd.

Claims (5)

[Claims] 1. A compressor for compressing air, and a combustor for mixing and burning the air compressed by the compressor and fuel, and a combustor.
A turbine driven by combustion gas generated in the combustor, a regenerative heat exchanger for exchanging heat between exhaust gas of the turbine and discharge air from the compressor, the compressor and the turbine being the same A base gas turbine power generation facility and a boost gas turbine power generation facility each having a generator that is provided on a shaft and is driven by the turbine to generate power, and a base gas turbine power generation facility and the boost gas turbine power generation facility, respectively. An inverter for converting the power generation frequency of a generator installed on the shaft, a regenerative heat exchanger of the base gas turbine power generation facility and a combustor of the boost gas turbine power generation facility, a turbine and a base of the boost gas turbine power generation facility Combustor of gas turbine power generation facility, compressor and boost gas of the base gas turbine power generation facility The generator of the turbine power generation equipment, the high temperature gas side passages of the regenerative heat exchanger of the base gas turbine power generation equipment and the boost gas turbine power generation equipment, the regenerative heat exchanger of the base gas turbine power generation equipment and the boost gas turbine power generation equipment A gas turbine power generation facility having a flow path connecting flow paths on the low temperature gas side. 2. The gas turbine power generation facility according to claim 1, wherein a three-way valve is provided in a flow path connecting the base gas turbine power generation facility and the boost gas turbine power generation facility. 3. A compressor for compressing air, and a combustor for mixing and burning the air compressed by the compressor and fuel, and a combustor.
A turbine driven by combustion gas generated in the combustor, a regenerative heat exchanger for exchanging heat between exhaust gas of the turbine and discharge air from the compressor, the compressor and the turbine being the same A base gas turbine power generation facility and a boost gas turbine power generation facility each having a generator that is provided on a shaft and is driven by the turbine to generate power, and a base gas turbine power generation facility and the boost gas turbine power generation facility, respectively. A flow path for guiding the air compressed by the compressor of the base gas turbine power generation equipment to the compressor of the boost gas turbine power generation equipment, and an inverter for converting the power generation frequency of the generator installed on the shaft, The air that has been compressed by the compressor of the gas turbine power generation equipment and passed through the regenerative heat exchanger is used as the base gas turbine power generation equipment A flow path leading to a heat exchanger, a path leading the air heat-exchanged in the regenerative heat exchanger of the base gas turbine power generation equipment to a combustor of the boost gas turbine power generation equipment, and a combustor of the boost gas turbine power generation equipment. Boosted gas turbine power generation that drives the combustion gas generated and drives the turbine to the combustor of the base gas turbine power generation equipment and the combustion gas that drives the gas turbine of the base gas turbine power generation equipment and passes through the regenerative heat exchanger A gas turbine power generation facility that has a flow path that leads to the regenerative heat exchanger of the facility. 4. A compressor for compressing air, and a combustor for mixing and burning the air compressed by the compressor and fuel,
Base gas turbine power generation equipment and boost gas each having a turbine driven by combustion gas generated in the combustor, and a generator provided on the same axis as the compressor and the turbine and driven by the turbine to generate electricity A turbine power generation facility, wherein a regenerative heat exchanger for exchanging heat between compressed air and turbine exhaust gas is installed in the base gas turbine power generation facility, and each of the base gas turbine power generation facility and the boost gas turbine power generation facility is installed. In, provided with an inverter for converting the power generation frequency of the generator installed on the shaft, a flow path for guiding the air compressed by the compressor of the base gas turbine power generation facility to the compressor of the boost gas turbine power generation facility, and Based on the air compressed by the compressor of the boost gas turbine power generation equipment, the regenerated heat of the gas turbine power generation equipment Generated in the boost gas turbine power generation equipment combustor, the flow path leading to the converter, the path leading the air that has been heat-exchanged in the regenerative heat exchanger of the base gas turbine power generation equipment to the combustor of the boost gas turbine power generation equipment, And a flow path for guiding the combustion gas that drives the turbine to the combustor of the base gas turbine power generation facility. 5. A compressor for compressing air, and a combustor for mixing the air compressed by the compressor with a fuel for combustion.
Base gas turbine power generation equipment and boost gas each having a turbine driven by combustion gas generated in the combustor, and a generator provided on the same axis as the compressor and the turbine and driven by the turbine to generate electricity Turbine power generation equipment, a boost gas turbine power generation equipment is provided with a regenerative heat exchanger for exchanging heat between compressed air and turbine exhaust gas, and each of the base gas turbine power generation equipment and the boost gas turbine power generation equipment. In, provided with an inverter for converting the power generation frequency of the generator installed on the shaft, a flow path for guiding the air compressed by the compressor of the base gas turbine power generation facility to the compressor of the boost gas turbine power generation facility, and It is compressed by the compressor of the boost gas turbine power generation facility, and it passes through the regeneration heat exchanger and combustor And a flow path for guiding the combustion gas that drives the combustion gas that drives the turbine of the base gas turbine power generation facility, and a flow path that guides the combustion gas that drives the turbine of the base gas turbine power generation facility to the regenerative heat exchanger of the boost gas turbine power generation facility. A gas turbine power generation facility characterized by the installation of