牵引电机无速度传感器间接定子量控制系统研究

Study on Speed Sensorless Indirect Stator-quantities Control System of Traction Motor

本文介绍间接定子量控制的基本原理以及全速范围间接定子量控制系统结构,提出基于观测器的异步电机无速度传感器控制方法,应用鲁棒控制理论、利用Matlab的LMI工具箱求解两个双线性矩阵不等式(BMIs)得到观测器的增益矩阵,并结合Lyapunov稳定性理论推出速度自适应律。将该速度辨识方法应用到牵引电机间接定子量控制系统中,进行了试验验证。

The principle of indirect stator-quantities control and the structure of the indirect stator-quantities control system for the whole speed range are introduced.The observer-based speed sensorless control method of the asynchronous motor is proposed.The robust control theory and Matlab＇s LMI Toolbox are utilized to solve two bilinear matrix inequalities（BMIs） to get the gain matrix of the observer.The speed adaptive scheme is developed in combination with the Lyapunov stability theory.This speed identification method is applied in the indirect stator-quantities control system of the traction motor.Experiments are made to verify its feasibility.