Patent ID: 11888322
Assignee: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 13:
14. A maximum power point tracking MPPT control method for a photovoltaic system, wherein the method is applicable to an MPPT controller in the photovoltaic system, the photovoltaic system further comprises a photovoltaic array and a power converter, the MPPT controller is connected to the photovoltaic array and the power converter, and the method comprises:
obtaining a status of tracking a global MPP of the photovoltaic array in a target time period, wherein the target time period comprises a plurality of MPPT periods; and
obtaining, when there is a periodic shade for the photovoltaic array, a multi-peak search start moment of global MPPT of the photovoltaic array based on the status of tracking the global MPP of the photovoltaic array in the target time period, so that when the multi-peak search start moment in each MPPT period arrives, the global MPPT of the photovoltaic array is started, to output a working point of the global MPP of the photovoltaic array to the power converter.