초록 ▼

The invention provides a stand-alone, hybrid combustion turbine derivative power generation system sized for the most efficient and cost-effective base load operation that is also capable of providing, using air storage techniques, short-duration peak power, which is approximately 200% of the base l

The invention provides a stand-alone, hybrid combustion turbine derivative power generation system sized for the most efficient and cost-effective base load operation that is also capable of providing, using air storage techniques, short-duration peak power, which is approximately 200% of the base load rating, and short-duration intermediate load power over a whole a range of loads between a base load and a peak load. The peak/intermediate power is also delivered with the best practical efficiency possible. The hybrid system may employ a variety of combustion turbine thermal cycles, including a simple cycle combustion turbine plant, combustion turbine plants with intercooling, reheat, recuperation, steam injection and humidification, and combined cycle power plants.

대표청구항 ▼

[ What is claimed is:] [1.] A method of providing a hybrid combustion turbine derivative power generation system includingmodifying a combustion turbine derivative power generation system sized for base load operation and having at least one power shaft assembly having at least one compressor, at le

[ What is claimed is:] [1.] A method of providing a hybrid combustion turbine derivative power generation system includingmodifying a combustion turbine derivative power generation system sized for base load operation and having at least one power shaft assembly having at least one compressor, at least one 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 selected to meet peaking requirements, of said hybrid combustion turbine derivative power generation system 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 combustion turbine derivative power generation system and said additional system to provide various flow paths through said hybrid system witha flow path structure permitting communication between an outlet of said compressor and an inlet to said intercooler feeding said boost compressor,a connection structure permitting communication between an outlet of said air storage and an inlet to the combustor,a 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 of said at least one power shaft assembly 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 provision of (i) a base load powers (ii) a peak load power which is greater than said base load power to meet peaking requirements, by using air from said air storage, (iii) an intermediate range of power loads between said base load power and said peak load power, by using air from said air storage or a combination of air from said air storage and said compressor, and (iv) a charging mode of operation wherein said air storage is charged with compressed air. [20.] A hybrid combustion turbine derivative power generation system comprising:a modified combustion turbine derivative power generation system sized for base load operation and having at least one power shaft assembly having at least one compressor, at least one expansion turbine, and a double-ended motor/generator between said compressor and said turbine, said motor/generator being connected directly to an electric grid and selected to meet peak load requirements of said hybrid combustion turbine derivative power generation system and having 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, and a combustor feeding said expansion turbine, andan additional system selected to meet peak load requirements of said hybrid combustion turbine derivative power generation system and having a boost compressor, an intercooler feeding cooled air to said boost compressor, an electric motor for driving said boost compressor, and aftercooler downstream of said boost compressor, a compressed air energy storage downstream of said aftercooler,said additional system being integrated with said modified combustion turbine derivative power generation system by a flow path structure permitting communication between an outlet of said at least one compressor and an inlet to the said intercooler feeding said boost compressor, a connection structure permitting communication between an outlet of said air storage and an inlet to the combustor, a 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 at least one compressor and an inlet of said combustor,said hybrid system further includinga first valve system for controlling air flow in said flow path structure and disposed between said at least one compressor and an inlet to said intercooler feeding said boost compressor,a second valve system for controlling air flow in said connection structure and disposed between said air storage and said combustor, anda third valve system for controlling air flow in said bypass structure,said valve systems being constructed and arranged to provide various flow paths through said system and said turbine driving clutch structure and said compressor driving clutch being constructed and arranged to provide via said motor/generator (i) a base load power (ii) a peak load power which is greater than said base load power to meet peaking requirements by using air from said air storage, and (iii) an intermediate range of power loads between said base load power and said peak load power by using air from said air storage or a combination of air from said air storage and said compressor, and a charging mode of operation wherein said air storage is charged with compressed air.