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A novel high power factor PWM rectifier inverter for electric vehicle charging station

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4 Author(s)
Lei Shi ; Inst. of Electr. Eng., Beijing, China ; Haiping Xu ; Dongxu Li ; Zengquan Yuan

Applications of electric vehicles need to build a large number of charging stations. In order to reduce the grid load, it is necessary to develop smart electric vehicle charging stations. The Electric vehicle charging stations communicate with the gird. The Electric vehicle charge at night to reduce the cost and the grid load, simultaneously fill the valley. When grid load increase, electric vehicles battery discharge to the grid to improve grid stability. As distributed storage units, electric vehicles are important components of smart grid. New technology of high power factor PWM rectifier-inverter is one of the key technologies for the smart electric vehicle charging system. In this paper, three-phase PWM rectifier used for smart charging and discharging system of electric vehicle is analyzed and designed. The paper includes the principle of PWM Rectifier-Inverter and direct current control strategy. Also, the SVPWM and system design of three-phase PWM rectifier are analyzed. A 10 kW prototype is developed. Simulation and experiment results show that the three-phase PWM rectifier can improve power factor. From the experimental results, PWM rectifier implements the grid current sinusoidal and achieves the unit power factor.

Published in:

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Date of Conference:

20-23 Aug. 2011