Patent ID: 11862981
Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 3:
4. The photovoltaic system according to claim 3, further comprising a first photovoltaic string comprising a first plurality of converters and a second photovoltaic string comprising a second plurality of converters; and
the controller is configured to send a limiting proportion of the first photovoltaic string to at least one converter in the first photovoltaic string through power line communication, and send a limiting proportion of the second photovoltaic string to at least one converter in the second photovoltaic string, so that the at least one converter in the first photovoltaic string sets a corresponding voltage limiting value based on the limiting proportion of the first photovoltaic string, and the at least one converter in the second photovoltaic string sets a corresponding voltage limiting value based on the limiting proportion of the second photovoltaic string.