摘要
为提高电动汽车用永磁同步电机无位置传感器转子位置辨识性能,改进设计基于滑模观测器的转子位置辨识方法,将低通滤波器输出量引入滑模观测器,用于观测电机反电动势,缓解低通滤波器造成的信号相位滞后问题。在转子位置辨识环节中,改进的锁相环较传统锁相环具有更强的鲁棒性,且能够实现无转动方向差别的转子位置辨识功能。MATLAB/Simulink仿真结果显示,基于改进锁相环的PMSM转子位置辨识方法具有良好的辨识精度、动态响应性和正反向运行适应能力,该方法易于实现,鲁棒性强,简化转子位置辨识系统的设计。
In order to improve the sensorless rotor position estimation results, a new scheme based on the im-proved sliding mode observer and phase lock loop for permanent magnet synchronous motors was proposed. The output of the low pass filter was reassigned as a feedback for the sliding mode observer to minimize the phase lag. A new phase lock loop scheme was introduced, which features the non-speed-direction-difference rotor position estimation. MATLAB/Simulink simulation results show that good rotor position identification accuracy and speed response characteristics are achieved. This method is easy to implement and robust, which simplifies the design of rotor position estimation system.
作者
徐达
杨绿
吴怀超
袁焱
何锋
XU Da;YANG Lu;WU Huaichao;YUAN Yan;HE Feng(School of Mechanical Engineering,Guizhou University,Guiyang 550025 ,China;Guiyang Aviation Electrical Machinery Co.,Ltd,Guiyang 550025,China)
出处
《贵州大学学报（自然科学版）》
2019年第4期54-58,共5页
Journal of Guizhou University:Natural Sciences
基金
贵州省科技计划项目重大专项资助(黔科合重大专项字[2015]6007)
关键词
永磁同步电机
无位置传感器控制
滑模观测器
锁相环
permanent magnet synchronous motor
sensorless control
sliding mode observer
phase lock loop
