感应电动机的自适应控制建模与仿真  

Modeling and Simulation of Adaptive Control for Induction Motor

作　　者：丁瑜[1] 卢子广[1] 邓敏茜[1] 

机构地区：[1]广西大学电气工程学院,南宁530004

出　　处：《电测与仪表》2009年第6期5-8,34,共5页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(50567001)

摘　　要：本文介绍一种感应电动机的自适应控制仿真。在转子电阻和负载未知的前提下,控制器首先采用二阶滤波环节平滑参考转速指令,然后将系统中某一信号作为虚拟控制信号,进而使系统简化,再应用李亚普诺夫稳定性理论实现该虚拟控制信号,同时对未知参数进行估计。该设计方法对于电机参数的变化具有鲁棒性。在Matlab/Simulink中搭建了感应电动机自适应控制系统的仿真模型,仿真结果表明,用该方法设计的感应电动机控制系统能够获得很好的转速跟踪和磁链跟踪性能。This paper presents an adaptive control simulation for induction motor. The controller first uses second-order filter to smooth the speed reference, and then treats certain signals in the system as fictitious control signals to get a simpler subsystem. Then the Lyapunov theory is applied to robustly realize the fictitious adaptive signals. The method is robust to parameter variations. Load torque and rotor resistance can be unknown. The simulation model of the induction motor＇s control system is set up on Matlab/Simulink. The simulation result illustrates that the control system of induction motor by adaptive sliding mode method can achieve better performance of the motor velocity and flux tracking.

关 键 词：感应电动机 自适应控制 二阶滤波 

分 类 号：TM346[电气工程—电机]