摘要
该文通过对双Y形6相永磁同步电动机(PMSM)出现一相或多相绕组开路故障时磁动势的分析,建立了多相PMSM在此种不对称情况下的数学模型,提出了不对称情况下多相PMSM在转子磁场定向控制时的矢量控制方法。该方法以故障前后定子侧产生恒定磁动势为原则,对定子侧电流进行补偿。数字仿真结果表明,这种控制方法可使多相PMSM在不对称运行工况下的运行性能得到明显的改善。
In this paper, through the analysis of magnetomotive force, the mathematical model of a multi-phase Permanent Magnet Synchronous Motor (PMSM) with dual-star windings is established in the asymmetric condition that one or more phases of the motor are open circuited, and the vector control method of the multi-phase PMSM based on rotor field-oriented is presented in the asymmetric condition. The method compensates the stator current in the fault state in order to keep the magnetomotive force as that in normal state. The simulation results show that the performance of multi-phase PMSM is greatly improved in the asymmetric condition.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2004年第7期145-150,共6页
Proceedings of the CSEE
基金
国家自然科学基金(60272051)~~
关键词
多相永磁同步电动机
矢量控制
数学模型
控制策略
电磁结构
Electric machinery and electrotechnology
Multi-phase permanent magnet synchronous motor
Vector control
Asymmetric operation
