Digital controller for electric vehicle synchronous motor rotor

Weihua Chen

State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources

North China Electric Power University, Beijing 102206, China

At present, the number of electric vehicle is increasing, and, in case of big vehicle speed change, the vehicle motor cannot be used efficiently. In order to resolve this problem, it is necessary to improve the topological structure and control strategy, and design a new converter. In this paper, we apply a two-channel synchronous Buck converter. The main circuit is to achieve the maximum power output by the stage regulation, while the improved converter topology realizes the overall system function. The experimental results show that the new converter has superior performance in big vehicle speed change, and has the high quality energy output. This research has an important practical significance to improve the utilization of renewable energy.