感应电机无传感器滑模变结构控制

Sensorless control of induction motor with slide mode variable structure

文章在分析感应电机数学模型的基础上,设计了一种感应电机无传感器滑模变结构控制系统,搭建了基于Matlab/Simulink的、感应电机无传感器滑模变结构控制系统的仿真平台;系统采用转速、电流双闭环控制,其中,转速控制器采用滑模算法,速度辨识器采用MRAS控制算法;仿真结果证明,该方法具有较强的鲁棒性,为实际电机控制系统的设计和调试提供了依据。

Based on the theoretical analysis of mathematical model for induction motor,a sensorless control system for induction motor with slide mode variable structure is designed.And a simulation platform of sensorless control system is established based on Matlab/Simulink for induction motor with slide mode variable structure.In the system controlled by rotational speed and double closed-loop,the slide mode algorithm is used for speed controller and the model reference adaptive system（MRAS） is applied in estimating the induction motor speed.Simulation results show that this method behaves robustly and offers a basis for designing and debugging motor control system.