METHOD OF SYNCHRONIZING POWER GENERATOR OF TURBO ENGINE TO POWER GRID

PROBLEM TO BE SOLVED: To provide a method of reducing time required to synchronize power generator to power grid system. SOLUTION: A power generating device (100) matches a voltage of a power generator (145) and a grid (155) voltage before a grid matching speed is reached, during a startup process....

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Bibliographische Detailangaben
Hauptverfasser:	MATERS JOHN C, CUNNINGHAM JOHN N
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY ENGINE PLANTS IN GENERAL GENERATION HEATING 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 MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES SYSTEMS FOR STORING ELECTRIC ENERGY WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of reducing time required to synchronize power generator to power grid system. SOLUTION: A power generating device (100) matches a voltage of a power generator (145) and a grid (155) voltage before a grid matching speed is reached, during a startup process. A prediction algorithm (365) or a similar algorithm is provided for controlling an acceleration rate of the power generating device (100) such that a certain phase angle difference between the power generating device (100) and a grid (155) is targeted when the power generating device (100) reaches the grid matching speed. The phase angle difference can be targeted such that a power generator breaker can be closed immediately after the power generating device (100) accelerates beyond the grid matching speed. As a result, the power generator (145) can be prevented from receiving a phase angle difference that may possibly add a power transition state related to closing of the power generator breaker. COPYRIGHT: (C)2011,JPO&INPIT