中国电机工程学报Issue(30)：5368-5377,10.DOI:10.13334/j.0258-8013.pcsee.2014.30.014
一种永磁同步电机直接转矩控制无传感器运行优化方法
An Optimization Method of Direct Torque Control and Sensorless Operation for Permanent Magnet Synchronous Motors
摘要
Abstract
There are big ripples on stator flux linkage and torque when using traditional direct torque control (DTC) on permanent magnet synchronous motors (PMSM). A system with mechanical speed sensors has lower reliability and higher system cost. To solve these problems, also in order to improve active-disturbance rejection control (ADRC) performances, an optimization method for PMSM DTC sensorless operation was proposed. The speed regulator based on ADRC was designed. The realization of the optimal least squares support vector machines (LSSVM) regression model embedded in ADRC regulator was expounded, which optimized the ADRC regulator. The observation precision and dynamic response of the ADRC were improved. The anti-interference ability of the system was further improved. The extended state observer was established in the two-phase static coordinate system to estimate stator flux linkage and motor speed in the meantime. The ripples on flux linkage and torque have been reduced, and sensorless speed control has been realized. Simulation and experiment results verify the feasibility and effectiveness of this method.关键词
永磁同步电机/直接转矩控制/最小二乘支持向量机回归/自抗扰控制/无传感器运行/磁链估计Key words
permanent magnet synchronous motor (PMSM)/direct torque control (DTC)/least squares support vector machines (LSSVM) regression/active-disturbance rejection control (ADRC)/speed sensorless operation/flux linkage estimation分类
信息技术与安全科学引用本文复制引用
刘英培,栗然..一种永磁同步电机直接转矩控制无传感器运行优化方法[J].中国电机工程学报,2014,(30):5368-5377,10.基金项目
中央高校基本科研业务费专项基金资助(2014MS89).Project Supported by the Fundamental Research Funds for the Central Universities (2014MS89) （2014MS89）
