摘要： 将柔性变结构控制方法引入永磁同步电机矢量控制中，以提高永磁同步电机矢量控制系统的响应速度，和运行稳定性。叙述了柔性变结构的基本原理，给出了永磁同步电动机柔性变结构模型，推导了柔性变结构控制律。仿真结果表明，该控制策略极大地改善了系统的动、静态性能，是永磁同步电机矢量控制中一种新颖的改进控制方式。

关键词：永磁同步电机；柔性变结构 ；响应速度 ；矢量控制
Abstract: Variable saturation soft variable structure control strategy was proposed in this paper to improve the response speed and working stability associated with vector control of permanent magnet synchronous machine. This paper explained the basic theory of variable saturation soft variable structure and the model of variable saturation soft variable structure control for PMSM in detail, derivated the variable saturation soft variable structure control law. Simulation results indicate that the control strategy has greatly improved the system dynamic and static performance, it is a new improved control method for PMSM vector control．

Key words: permanent magnet synchronous motor; variable saturation soft variable structure; speed of response; vector control