CURRENT CONTROLLER OF VOLTAGE TYPE POWER CONVERTER AND CURRENT CONTROL METHOD OF VOLTAGE TYPE POWER CONVERTER

PROBLEM TO BE SOLVED: To lower the power converter capacity by lowering the peak value of a current flowing to each leg, with a simple configuration when compared with prior art.SOLUTION: Current of a power converter is controlled so that desired power conversion is carried out between an AC system...

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Bibliographische Detailangaben
Hauptverfasser:	YAMASHITA KEIICHI, YOSHIHARA TORU, ITO TOMOMICHI, YAMAMOTO TAKAYOSHI, SAKUCHI OSAMU, ICHINOSE MASAYA, INOUE SHIGENORI, KATO SHUJI, BANDO AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To lower the power converter capacity by lowering the peak value of a current flowing to each leg, with a simple configuration when compared with prior art.SOLUTION: Current of a power converter is controlled so that desired power conversion is carried out between an AC system and a DC system, by performing feedback control so that a first predetermined value is obtained by performing coordinate transformation of an AC current flowing to an AC terminal with the phase of the system voltage, and performing feedback control so that a second predetermined value is obtained by performing coordinate transformation of a circulating current flowing through a first arm and a second arm with the phase of a second frequency different from the phase of the system voltage.