多相永磁同步电动机电力推进系统缺相运行分析

将综合矢量法推广应用于多相产同步电动机电 力推进系统缺运行研究邮部分相绕组退出工作后剩余绕组不对称分布情况下产生圆形磁场的电流条件，给出了缺相情况下冰生最大输出转矩的控制方法。

Operation Analysis of Electrical Propulsion System with Polyphase Permanent Magnet Synchronous Motor in Subtraction Phase

By appliying synthetic vector method,the fault tolerance of a polyphase permanent magnet synchronous motor in subtrac- tion phase is analyzed for a electrical propulsion system.The current condition of producing a circular magnetic field is dis- cussed in the situation of asymmetric distribution of remanent windings after part of the windings out of working and a control strategy to get maximum gorque in condition of subtraction phase is given.The simulation results show that the proposed method can eliminate the torque fluctuation and get possible maximum ouput torque after failure of the system,so that the survivability can greatly be enhanced.