Photovoltaic system and control method

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United States of America Patent

PATENT NO 11862981
APP PUB NO 20220416546A1
SERIAL NO

17851374

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Abstract

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A photovoltaic system includes an inverter, a controller, and at least two converters. An input terminal of each of the at least two converters are connected to a corresponding photovoltaic module, and output terminals of the at least two converters are connected in series and connected to an input terminal of the inverter. The controller is configured to set a voltage limiting value of at least one of the at least two converters, so that an output voltage of the at least one converter is less than or equal to the voltage limiting value when the converter works in a voltage limiting mode. The voltage limiting value of the at least one converter is proportional to an open circuit voltage of the photovoltaic module connected to an input terminal of the converter. Open circuit voltages of different photovoltaic modules vary with different parameters or models of the photovoltaic modules.

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Patent Owner(s)

  • HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gu, Guilei Shanghai, CN 18 5
Jia, Peixian Xi'an, CN 1 0

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