Power conversion units connected in parallel

The invention relates to a power conversion unit connected in parallel, which comprises N power conversion circuits, N or N-1 voltage adjusting circuits and a control circuit connected in parallel between a power supply and a load, wherein N is more than or equal to 2, each voltage adjusting circuit...

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Bibliographische Detailangaben
Hauptverfasser:	ZHU CHUNHUI, LIU SHUDU, LU HUAJUN, ZHANG QIANG, PAN SHIFENG
Format:	Patent
Sprache:	chi ; 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:	The invention relates to a power conversion unit connected in parallel, which comprises N power conversion circuits, N or N-1 voltage adjusting circuits and a control circuit connected in parallel between a power supply and a load, wherein N is more than or equal to 2, each voltage adjusting circuit is arranged at the front end of one power conversion circuit respectively, and the control circuitis applied to detecting output voltage of each power conversion circuit and sending control signals to the voltage adjusting circuits so as to adjust the output voltage of the voltage adjusting circuits, and each power conversion circuit has same output current. The power conversion unit solves the problems that when the resonant parameters of the power conversion circuits have differences, branch current is unbalanced and even certain branches do not transmit power to secondary sides. Besides, the power conversion unit cannot increase the output impedance and reduce the Q values of the powerconversion circuits to mak