Huawei Digital Power Technologies Co., Ltd.

Qinwei Liu

Kai Liu

Lin Li

Yanzhong Zhang

Song Wan

Wuben Sun

Mingwei Xu

Binjie Cheng

An image/video capture apparatus is provided, to capture image data of a photovoltaic panel () and surroundings, and a controller () recognizes a category corresponding to the image data, and generates different instructions to control rotation of a photovoltaic tracker (), to remove dust or snow accumulating on the photovoltaic panel (). This does not need continuous heating, but is simple and efficient, saves electric energy, and resolves a technical problem that a conventional snow removal method of heating has low efficiency and wastes electric energy. In addition, a corresponding controller () is further provided.

Rotation system and controller for photovoltaic tracker

Any one of a plurality of to-be-grouped devices in a power supply system reports an initial bus voltage to a topology detection device; and reports a current bus voltage after delivering a bus voltage adjustment instruction to a target reference device. The bus voltage adjustment instruction instructs the target reference device to adjust a voltage. The target reference device receives the bus voltage adjustment instruction and adjusts the voltage according to the bus voltage adjustment instruction. The topology detection device obtains the initial bus voltage and the current bus voltage of the plurality of to-be-grouped devices, and determines, based on a difference between the initial bus voltage of the plurality of to-be-grouped devices and the current bus voltage of the plurality of to-be-grouped devices, whether the target reference device and a target to-be-grouped device are connected to a same bus.

Power supply system and topology detection method

Growing community of inventors

Shenzhen, China

Qinwei Liu