Power supply system, converter, and circulating current suppression method of converter

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United States of America

PATENT NO 12160106
APP PUB NO 20230116892A1
SERIAL NO

17964121

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Abstract

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A power supply system, a converter, and a circulating current suppression method of the converter. The power supply system includes at least two converters that are coupled between a direct current power supply and an alternating current grid. Each converter obtains target output reactive power when an output current of the converter starts to increase from an initial current, obtains a reactive power compensation parameter based on the three-phase output voltages. Further, each converter obtains compensated output reactive power of the converter based on the reactive power compensation parameter and adjusts actual output reactive power of the converter based on the target output reactive power and the compensated output reactive power, so that an absolute value of a difference between common-mode output voltages of any two of the at least two adjusted converters is less than a difference threshold.

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Patent Owner(s)

Patent OwnerAddress
HUAWEI DIGITAL POWER TECHNOLOGIES CO LTDOFFICE 01 39TH FLOOR BLOCK A ANTUOSHAN HEADQUARTERS TOWERS 33 ANTUOSHAN 6TH ROAD FUTIAN DISTRICT SHENZHEN GUANGDONG 518043 518043

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Xin, Kai Shanghai, CN 91 348
Xu, Fuqiang Shanghai, CN 12 7
Yao, Yuan Shanghai, CN 214 1074
Yu, Xinyu Shanghai, CN 48 233

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