Multi-shaft variable speed gas turbine apparatus and method of controlling the same

A multi-shaft variable speed gas turbine apparatus includes a multi-shaft gas turbine having a gas turbine compressor, a gas turbine burner, a gas generator provided with a first turbine for rotationally driving the gas turbine compressor, and a power turbine, provided with a second turbine that is...

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Bibliographische Detailangaben
Hauptverfasser:	Hino, Noriaki, Thet, Aung Ko, Kusumi, Naohiro
Format:	Patent
Sprache:	eng
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GAS-TURBINE PLANTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MECHANICAL ENGINEERING REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	A multi-shaft variable speed gas turbine apparatus includes a multi-shaft gas turbine having a gas turbine compressor, a gas turbine burner, a gas generator provided with a first turbine for rotationally driving the gas turbine compressor, and a power turbine, provided with a second turbine that is mechanically separated from the gas generator, rotationally driven by exhaust gas of the gas generator, and having a main generator. A sub-electric motor/generator is connected to the gas generator, and a frequency converter controls the sub-electric motor/generator. A fuel flow rate control valve adjusts output using a fuel flow rate to be injected into the gas turbine burner. Variation of the fuel flow rate is restricted, and a control device determines a drive load of the gas turbine compressor in accordance with an output load for a request load, and controls the sub-electric motor/generator using the frequency converter.