一种永磁同步电机双滑模无传感器控制方法  

A Method of Speed Sensorless Control Based on Double Sliding Mode Control for Permanent Magnet Synchronous Motor

作　　者：蒋林[1] 刘梁鸿 韩璐 邱存勇[1] JIANG Lin;LIU Liang-hong;HAN Lu;QIU Cun-yong(Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]西南石油大学电气信息学院

出　　处：《电力电子技术》2019年第11期15-18,共4页Power Electronics

基　　金：国家自然科学基金青年基金(51607151);四川省创新创业资助项目(201710615060)~~

摘　　要：针对永磁同步电机(PMSM)无速度传感器控制系统的低速稳定运行和宽调速范围问题,提出了一种基于双滑模控制的PMSM无速度传感器控制方法。该方法利用滑模观测器来估计电机的转速及转子位置角,以提高系统的低速带载能力,通过增加低通滤波器和补偿转子角度来消除低速时的抖振问题;利用滑模转速调节器替代传统的比例积分(PI)转速调节器,拓展了电机的调速范围。仿真与实验结果表明,所提方法具有较强的鲁棒性,转速辨识精度高,且系统可在全速度范围内稳定运行。Aiming at the low speed stable operation and wide speed range of the speed sensorless control system of permanent magnet synchronous motor(PMSM),a speed sensorless control method based on double sliding mode control is proposed for PMSM.In this method,the sliding-mode observer is used to estimate the rotational speed and the rotor position angle of the motor to improve the low-speed carrying capacity of the system.By adding the low-pass filter and compensating the rotor angle,the chattering problem at low speed is eliminated.The sliding mode speed regulator is utilized to replace the traditional proportional integral(PI)speed regulator,expanding the motor range.Simulation and experimental results show that the proposed method has strong robustness,high accuracy of speed identification and stable operation of the system in full speed range.

关 键 词：永磁同步电机 双滑模控制 无速度传感器 

分 类 号：TM351[电气工程—电机]