基于观测器的异步电动机模糊自适应控制

摘要

This paper focuses on the problem of position tracking control for induction motors .A reduced-order state observer is designed to estimate the angular velocity of induction motors .Fuzzy logic systems are used to approximate the nonlinearities and adaptive backstepping technique is employed to construct controllers .The proposed adaptive fuzzy controller can guarantee the tracking error converge to a small neighborhood of the ori -gin.The simulation results clearly show that the proposed control scheme can guarantee the proposed controller track the position control signal well .%研究了异步电动机位置跟踪控制问题。设计降维观测器用于估计异步电动机的角速度，利用模糊逻辑系统逼近系统中的非线性函数，并基于反步法实现异步电动机的自适应模糊控制。所提出的控制器能够有效地跟踪给定的参考信号。仿真结果验证了该方法的有效性。