摘要：文中提出了一种采用九开关变换器和双三相PMSM的用于电动汽车集成车载充电器的新拓扑结构。与传统的充电器相比，明显优点在于装置开关数量的减少，并且可以通过相位移原理实现在充电模式中不产生转矩，因此电机保持静止状态。最后通过预测直接功率控制策略对所提出系统进行控制，并在Matlab/Simulink中仿真验证了所提出系统的可行性，证明其能够实现单位功率因数运行。
关键词：双三相PMSM；九开关变换器；集成车载充电器；预测直接功率控制

Abstract: This paper proposed a novel topology for integrated onboard battery charger of electric vehicles (EVs) using a NineSwitchConverter (NSC) and a dual threephase PMSM. Compared with conventional chargers, the obvious advantage of novel one is that it reduced the number of device switches, and avoided torque production during the charging mode by the principle of phase shift, thus the rotor stayed at standstill. Finally, the proposed system was controlled by predictive direct power control strategy, and the simulation in Matlab/Simulink verified the feasibility of the proposed system and proved that it can achieve the unit power factor operation.
Key words: dual threephase PMSM；nineswitchconverter (NSC); integrated onboard chargers; predictive direct power control