开关磁阻电机直接转矩滑模变结构控制

摘要

Because of the nonlinear and strong coupling characteristics of switched reluctance motor (SRM),the traditional control method was difficult to achieve satisfactory results.A sliding mode variable structure control method for the three stage linear switching line was introduced.This method was different from the conventional variable structure control.It could make the motor run on the sliding mode from the beginning,and ensures that the system sliding mode could be reached.Its main characteristic was simple and easy to implement.The simulation results showed that the method could quickly and stably track the given speed.It had good adaptability and robustness.%开关磁阻电机非线性、强耦合的特点,使传统的控制方法已很难达到满意效果.基于此,介绍了一种三段式分段线性切换线的滑模变结构控制法.该方法与常规的滑模变结构控制法不同,采用的三段式切换线使电机从一开始便运行在滑模线上,确保了系统滑动模态的能达型.该方法主要特点是控制简单,易于实现.仿真结果表明其能够对给定转速快速、稳定地跟踪,具有良好的适应性和鲁棒性.