Zhongbing Xue

Design, analysis and control of a permanent magnet in-wheel motor based on magnetic-gear for electric vehicles

This paper presents a new permanent magnet (PM) in-wheel motor for application to electric vehicles (EVs). The key is to design, model, and analyze the proposed machine. It integrates the magnetic gear with PM machine and omitting of the gear inner rotor. Hence, the proposed machine can achieve the low speed high torque output and high speed compact designing requirements and high power density with even simple structure. By using the FEM, the static characteristics of the proposed machine are analyzed. A 750w prototype is designed and built for experimentation. Both simulation and experimental results are given to verify the validity of the proposed machine.

Bi-directional converting technique for Vehicle to Grid

This paper presents a bi-directional converter based on Vehicle to Grid (V2G) conception. Combined with the corresponding control, the proposed circuit model can achieve EVs battery charging and grid-connection perfectly. With respect to control strategy, proportional resonant controller (PR) instead of PI can achieve the output with no static error in AC transient feedback and a good performance. Based on the Matlab/Simulink, the converter is analyzed. Furthermore, the converter is designed and built for experimentation. Both simulation and experimental results are given to verify the performance of the converter.