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

Claim 1:
2. The photovoltaic system according to claim 1, wherein the plurality of MPPT periods comprise a first MPPT period and N second MPPT periods before the first MPPT period, wherein N is a natural number greater than 1;
the MPPT controller is configured to: start the global MPPT of the photovoltaic array when a first multi-peak search start moment in the first MPPT period arrives, and obtain a multi-peak search time period for a periodic shade based on the first multi-peak search start moment when tracking the global MPP of the photovoltaic array; and
the MPPT controller is further configured to obtain, when there is the periodic shade for the photovoltaic array, the multi-peak search start moment of the global MPPT of the photovoltaic array based on a status of tracking the global MPP of the photovoltaic array in the multi-peak search time period in each second MPPT period.