公开(公告)号：US20210408968A1

公开(公告)日：2021-12-30

申请号：US17473534

申请日：2021-09-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jianqiang WANG ,  Song WAN ,  Yanzhong ZHANG ,  Yongbing GAO ,  Xinyu YU

IPC: H02S50/15 ,  H02H7/20 ,  H02H1/00

Abstract: A fault detection apparatus includes an image capture module and a detection module, and the fault detection apparatus is configured to capturing an image of the photovoltaic module in a light emitting state, and performing fault detection on the photovoltaic module based on the image when a signal-to-noise ratio of the image is maximized, to identify a fault type of the photovoltaic module.

公开(公告)号：US20220085758A1

公开(公告)日：2022-03-17

申请号：US17533614

申请日：2021-11-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianqiang WANG ,  Song WAN ,  Yanzhong ZHANG ,  Yongbing GAO

IPC: H02S50/00 ,  H02S40/32

Abstract: In a detection condition determining method, a control center obtains a working parameter value of a target photovoltaic device in a first time length closest to a current time point, where the working parameter value of the target photovoltaic device may be provided for the control center by a photovoltaic inverter coupled to the target photovoltaic device. The control center detects the target photovoltaic device in response to the control center determining, based on the working parameter value, that an environmental parameter value of the target photovoltaic device meets an environmental parameter threshold. Using the method helps reduce operation and maintenance costs of a photovoltaic power station.