IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0009246
(1998-01-20)
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발명자
/ 주소 |
- Nakhamkin Michael
- Schainker Robert
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| 출원인 / 주소 |
- Electric Power Research Institute, Inc.
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| 대리인 / 주소 |
Farkas & Manelli,pllcStemberger
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| 인용정보 |
피인용 횟수 :
79 인용 특허 :
0 |
초록
▼
A combustion turbine power generation system includes a modified simple cycle combustion turbine power generation system optimized for a "hot" stand-by reserve mode of operation and having a power shaft assembly including a compressor, an expansion turbine, and a double-ended motor/generator between
A combustion turbine power generation system includes a modified simple cycle combustion turbine power generation system optimized for a "hot" stand-by reserve mode of operation and having a power shaft assembly including a compressor, an expansion turbine, and a double-ended motor/generator between the compressor and the turbine. The motor/generator has a turbine driving clutch structure on one end thereof and a compressor driving clutch structure on the other end thereof. A combustor feeds the expansion turbine. The power generation system includes an additional system having a boost compressor, an intercooler feeding cooled air to the boost compressor an electric motor for driving the boost compressor, and aftercooler downstream of the boost compressor. A compressed air energy storage is downstream of the aftercooler. The additional system is integrated with the modified simple cycle combustion turbine power generation system to provide (i) a primary mode of operation--a hot stand-by mode, when the plant is ready to deliver an emergency power at full turbine power of specified duration within a few seconds; (ii) a cold start-up mode of operation, when the plant is ready to deliver an emergency power at full turbine power of specified duration within a few minutes, depending on the specifics of the turbine design, (iii) an emergency power supply mode, when the plant provides emergency power at full turbine power of specified duration; (iv) a combustion turbine emergency power supply mode, when the plant provides approximately 50% of full turbine power of unlimited duration during long term interruptions of the power supply; and (v) a storage charging mode of operation to charge the air storage.
대표청구항
▼
[ What is claimed is:] [1.] A method of providing a power generation system including:modifying a simple cycle combustion turbine system optimized for a "hot" stand-by reserve mode of operation and having a power shaft assembly including a compressor, an expansion turbine and a generator; and a comb
[ What is claimed is:] [1.] A method of providing a power generation system including:modifying a simple cycle combustion turbine system optimized for a "hot" stand-by reserve mode of operation and having a power shaft assembly including a compressor, an expansion turbine and a generator; and a combustor feeding said turbine, said modification including (1) separating said compressor and said turbine, (2) replacing said generator with a double-ended motor/generator, and (3) placing said motor/generator between said compressor and said turbine, said motor generator having a turbine driving clutch structure on one end thereof and a compressor driving clutch structure on the other end thereof, said compressor driving clutch structure being operatively associated with said compressor so that said compressor is driven by said motor/generator when said compressor driving clutch structure is engaged and said turbine driving clutch structure being operatively associated with said turbine so that said motor/generator may be driven by said turbine when said turbine driven clutch structure is engaged,providing an additional compression and compressed air storage system comprising:a boost compressor,an intercooler feeding the boost compressor,an electric motor for driving the boost compressor,an aftercooler downstream of said boost compressor,a compressed air storage downstream of said aftercooler,integrating said modified simple cycle combustion turbine system and said additional system to provide various flow paths through said power generation system with:flow path structure permitting communication between an outlet of said compressor and an inlet to said intercooler feeding said boost compressor,connection structure permitting communication between an outlet of said air storage and an inlet to the combustor,bypass structure having a first end coupled to said flow path structure and a second end coupled to said connection structure, said bypass structure permitting communication between an output of said compressor and an inlet of said combustor, andvalving to selectively control flow through said flow path structure, said connection structure, and said bypass structure,the integration ensuring the selective provision of one of (i) a "hot" stand-by reserve mode of operation capable of delivering emergency electrical power of specified duration, at full power of said turbine, within seconds (ii) a "cold" stand-by reserve mode of operation to provide emergency power of specified duration, at full power of said turbine, within minutes (iii) an emergency power generation mode of operation capable of providing emergency power of specified duration at full power of said turbine, (iv) a combustion turbine emergency power supply mode to provide emergency power of unlimited duration at a fraction of said full power of said turbine, and (v) a charging mode of operation wherein said air storage is charged with compressed air.
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