Huawei Digital Power Technologies Co., Ltd.

Changshuan Sun

Yanzhong Zhang

Zhiwu Xu

Tiansan Lin

Hongmiao Fang

A power supply system including three output ends of a power converter respectively connected to a first end of a positive/negative direct current bus and a first end of a neutral bus; two input ends of a first inverter respectively connected to a second end of the positive direct current bus and a second end of the neutral bus; two input ends of a second inverter respectively connected to a second end of the neutral bus and a second end of the negative direct current bus; a controller outputs an overvoltage alarm signal when at least one of the following conditions is met: a to-ground voltage of the positive/negative direct current bus or a to-ground voltage of the neutral bus is greater than or equal to the preset threshold.

Growing community of inventors

Shanghai, China

Changshuan Sun