基于滑模变结构控制的永磁同步电机

针对传统永磁同步电机控制方法存在转矩波动大、抗干扰能力差的缺陷, 将积分滑模控制（ISMC: Integral Sliding Mode Control）方法引入到永磁同步电机调速系统, 并推导出相应的控制规律, 从而使转速和转矩的超调得到有效抑制, 且抗干扰能力强, 具有快速且精度更高的特性。通过Matlab 7.8仿真结果表明, 对于系统给定的改变以及外界干扰, 积分滑模控制器比传统直接转矩控制具有更好的鲁棒性, 该方法可实现永磁同步电机输出转矩快速响应且满足精确跟踪的性能要求。

Permanent Magnet Synchronous Motors' System Based on Sliding Mode Control

Traditional permanent magnet synchronous motor control method, torque ripple is big, poor anti-jamming capability of defects, and cannot meet the requirement of the high performance, ISMC (Integral SlidingMode Control) method is introduced into the permanent magnet synchronous motor speed control system, and deduced the corresponding control law, to achieve the speed and torque overshoot is effectively suppressed, and strong anti\|jamming capability, with fast and good, higher precision. By Matlab 7.8 Simulation results show that: for a given change in the system, as well as outside interference, integral sliding mode controller has better robustness than traditional direct torque control, the proposed method can achieve permanent magnet synchronous motor output switch moments fast response and accurate tracking of performance requirements.