基于灰色滑模的异步电机矢量控制研究

Research on vector control of induction motor based on Grey Sliding mode

由于异步电动机是多变量强耦合的系统,采用传统的滑模控制器往往会造成系统的抖振,为了减弱系统的抖动问题,本文将灰色预测理论引入到传统的滑模变结构控制中,提出了一种新型灰色滑模变结构控制器,并进行了稳定性证明。仿真结果表明,该方法有效减弱了系统的抖振,保证了闭环系统的渐进稳定性和鲁棒性,使系统具有良好的动态和稳态性能。

Because of asynchronous motor is a multivariable strong coupling system, adopts the traditional sliding mode controller tend to cause system chattering, to weaken the system jitter problem, in this paper, the grey forecasting theory is introduced into the traditional sliding mode variable structure control, this paper proposes a new improved grey sliding mode variable structure controller, and the stability of the certificate. The simulation results show that the method weakens the chattering of the system effectively, guarantee the asymptotic stability and robustness of the closed-loop system, the syste has good dynamic and steady-state performance.