一种新型永磁同步电机滑模观测器设计方法  

Design Method of a New Sliding Mode Observer for Permanent Magnet Synchronous Motor

作　　者：李明[1] 程启明[1] 陈根[1] 王鹤霖[1] 邓亮[1] 

机构地区：[1]上海电力学院自动化工程学院,上海200090

出　　处：《电机与控制应用》2015年第6期1-5,16,共6页Electric machines & control application

基　　金：国家自然科学基金(61304134);上海市重点科技攻关计划(14110500700);上海市电站自动化技术重点实验室项目(13DZ2273800)

摘　　要：提出了一种新型永磁同步电机转速滑模观测器的设计方法。在传统的滑模观测器结构的基础上,通过改变切换函数,降低了观测器输出振动,并采用一种锁相环模块来估算转速,使估计的转速精度更高、响应速度更快。在MATLAB/Simulink下搭建了基于新型滑模观测器的永磁同步电机矢量控制系统仿真模型,证明了采用新型滑模观测器可以更有效地估算转子位置和转速,实现良好的动态和静态性能。A strategy for a permanent magnet synchronous motor（PMSM） based on a new sliding mode observer （SMO） was proposed, which reduce the phenomenon of chattering by changing the switching function of the traditional SMO. The phase locked loop method was adopted to extract the rotor speed so that it could obtain a more precision and faster response with smaller steady state error. Finally the simulation model of PMSM vector control system based on the new SMO was built in MATLAB/Simulink, the simulation results showed that the new SMO could effectively estimate rotor position and speed, achieved good static and dynamic performance.

关 键 词：滑模观测器 永磁同步电机 无位置传感器 锁相环 

分 类 号：TM351[电气工程—电机]