电气传动2018，Vol.48Issue(5)：13-17,5.DOI:10.19457/j.1001-2095.20180503
永磁同步电机新型无传感器控制方法
Novel Sensorless Control Method of Permanent Magnet Synchronous Motor
摘要
Abstract
Traditional direct torque control(DTC)system has large flux and torque ripples.In order to improve the immunity from interference of permanent magnet synchronous motor(PMSM)direct torque control system and solve this problem,mathematical model of permanent magnet synchronous motor was analyzed and stator flux observer with strong immunity from interference was designed. By the measurement of the stator voltage and current,extended Kalman filter(EKF)method was used to estimate the rotor position and stator flux.Also,the solution to the choice of the EKF covariance matrices was presented.Finally,the method was simulated and tested,and the results show that the EKF observer can decrease flux and torque ripples,besides its accurate estimation of rotor position and stator flux.关键词
抗干扰性/无传感器控制/扩展卡尔曼滤波/磁链估计器设计Key words
immunity from interference/sensorless control/extended kalman filter(EKF)/flux estimator design分类
信息技术与安全科学引用本文复制引用
邢岩,王旭,杨丹,张志美..永磁同步电机新型无传感器控制方法[J].电气传动,2018,48(5):13-17,5.基金项目
吉林省教育厅科学研究计划项目资助(吉教科合字[2016]244号,245号) （吉教科合字[2016]244号,245号）
