Xu Bingliang

A simple diagnosis of winding short-circuited fault of PMSM for electric vehicle

The negative-sequence current analysis is a classical method of single phase winding short in the PMSM. In this paper, a simple method is presented for on-line winding short circuit fault detection. It consists of a new calculation of negative sequence current based on negative-rotating synchronous reference frame. The amplitude of negative-sequence current is used as the indicator reflecting the severity of inter-short fault. The fault-detecting method is implemented very easily for electric driving system based on vector space control. A simulation is presented to verify the application proposed method.

Power quality analysis and harmonic suppression of high latitude and high alpine region electric vehicles charging station

In China, the first electric vehicles charging station of high latitude and high alpine region was built in Heilongjiang Electric Power Research Institute. In this research, electric vehicles charging station was introduced including a 100 kW DC charger and the main circuit diagram of EV charging station. In order to improve power quality and suppress harmonic, a shunt active power filter was applied in the EV charging station. To verify the effect of the shunt active power filter, charging experiments under different current for a bus were undertaken.