A Novel Approach to Speed Sensorless Vector Control of Asynchronous Motor Based on Active-Disturbance Rejection Controller
会议名称：《第二十九届中国控制会议》
会议日期：2010年
学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程]
基 金：supported by National Nature Science Foundation under Grant 50807034
关 键 词：Asynchronous Motor Active Disturbance Rejection Controller Speed Sensorless Speed Estimation Vector Control
摘 要：A novel approach to speed sensorless vector control system of asynchronous motor based on Active Disturbance Rejection Controller（ADRC）is presented in this *** the synchronously rotating reference frame,the equation of magnetizing current is a first order nonlinear state *** nonlinear part of the magnetizing current equation includes the rotor speed information,which can be regarded as the disturbance of magnetizing current loop.A speed observer based on ADRC is designed in this *** disturbance variation of magnetizing current loop is observed in real time by the ADRC speed *** rotor speed is then estimated from the observed disturbance *** results show that the rotor speed can be accuratelyestimated from 10r/min to 1500r/min with load or not.A good dynamic and static performance of the sensorless vector control system is achieved by this method.