永磁同步电机滑模变结构矢量控制

Variable Structure Sliding Mode Control for PMSM Vector Control

将滑模变结构控制策略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,增强其鲁棒性。叙述了滑模变结构的基本原理,给出了永磁同步电动机滑模变结构模型,推导了滑模变结构控制律,并分析了抖动产生原因及相应对策。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,对系统参数和外部干扰表现出较强的鲁棒性,是永磁同步电机矢量控制中一种新颖的改进控制方式。

A variable structure sliding mode （VSS） control strategy is proposed in this paper to improve the response speed and robustness associated with vector control of permanent magnet synchronous machine.This paper explains the basic theory of VSS and the model of VSS Control for PMSM in detail,derivates the Variable Structure Sliding Mode Control law, and analyses the reason and measure of wobble.Simulation results indicate that the control strategy has greatly improved the system dynamic and static performance and shows effectively robust to system parameters and disturbances and is a new improved control method for PMSM vector control.