Research on Integrated System of Motor Drive and Charging/Discharging Based on Open Motor Stator Winding
Zhang Feilong1, Wang Xiaolin1, Gu Cong1, Jiang Xiaobing2
1. School of Automation Nanjing University of Aeronautics and Astronautics Nanjing 211106 China; 2. Anhui Wannan Electric Machine Co. Ltd Xuancheng 242500 China
Abstract：The traditional motor drive and charging/discharging system of electric vehicle on-board are independent of each other, leading to low power density and volume space utilization for the control system. Therefore, based on the open motor winding, the integrated system of motor drive and charging/discharging is proposed in this paper, which has obtained multi-functional operation in a single structure. In the method, the windings are utilized as filters for the grid while the drive topology is integrated. The power density is increased further. In addition, the volume, weight, and cost of the charger are decreased. The conduction mode of the windings and the converter topologies are integrated. For the filtering performance and the suppression of electromagnetic torque during charging and discharging, the single-phase full-bridge, three-phase full-bridge, and three-phase four-leg topologies are analyzed. Thus, the adverse electromagnetic torque is eliminated completely during the charging/discharging process, and the filtering performance is optimized in the proposed single-phase full-bridge. Furthermore, the corresponding control strategies are given. Finally, the correctness and feasibility of the proposed integrated topology are verified by simulation and experiment.
张飞龙, 王晓琳, 顾聪, 蒋小兵. 基于电机定子绕组开路的电机驱动和充放电集成系统研究[J]. 电工技术学报, 2019, 34(18): 3778-3787.
Zhang Feilong, Wang Xiaolin, Gu Cong, Jiang Xiaobing. Research on Integrated System of Motor Drive and Charging/Discharging Based on Open Motor Stator Winding. Transactions of China Electrotechnical Society, 2019, 34(18): 3778-3787.
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2019, Vol. 34 
