IN-PHASE METHOD FOR GENERATION SYSTEM WITH DOUBLY-FED INDUCTION GENERATOR

PURPOSE: A synchronizing method for a generation system including a winding type induction generator is provided to prevent an individual synchronization angle reset process by automatically synchronizing a stator voltage vector with a system voltage vector regardless of the size of a system voltage...

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Bibliographische Detailangaben
Hauptverfasser:	OH, CHANG HUN, PAE, DEUK WOO, KANG, DAE WOOK, PARK, JUNG WOO, MOON, JI WOO, KWEON, JIN SOO
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	PURPOSE: A synchronizing method for a generation system including a winding type induction generator is provided to prevent an individual synchronization angle reset process by automatically synchronizing a stator voltage vector with a system voltage vector regardless of the size of a system voltage. CONSTITUTION: A Harr wavelet function with 2 level and a voltage signal with a noise are successively convoluted. The voltage signal is divided into three frequency components. A signal is rectified by applying a threshold and is restored. A new voltage signal without the noise is varied at a small slope range.