基于新型滑模观测器的永磁同步电机无传感器控制  

Sensorless Control of Permanent Magnet Synchronous Motor Based on New Sliding Mode Observer

作　　者：张强 赵显新[1] 马强 ZHANG Qiang;ZHAO Xian-xin;MA Qiang(School of Automobile and Traffic Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;Hubei Key Laboratory of Power System Design and Test for Electrical Vehicle,Hubei University of Arts and Science,Xiangyang Hubei 441053,China)

机构地区：[1]武汉科技大学汽车与交通工程学院,武汉430081 [2]湖北文理学院纯电动汽车动力系统设计与测试湖北省重点实验室,湖北襄阳441053

出　　处：《组合机床与自动化加工技术》2020年第7期98-101,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金青年基金项目(51307047);湖北省高等学校优秀中青年科技创新团队计划项目(T201815);湖北省技术创新专项(重大项目)(2016AAAO51)。

摘　　要：针对传统滑模观测器在估计转子位置和转速时存在的抖动问题,分析研究了一种新的滑模趋近律,并提出了一种基于变趋近律滑模观测器的永磁同步电动机无位置传感器控制方法。通过扩展滑模电流观测器方程,将滑模观测器与变趋近律相结合,为转子转速和位置的估计提供了新的思路。同时,建立了基于该方法的无位置传感器矢量控制系统。仿真和结果分析验证了该方法的可行性。该观测器能很好地跟踪转子的实际位置,动态响应快,有效地抑制了系统的抖振。Aiming at the jitter problem of the traditional sliding mode observer in estimating the rotor position and speed, a new sliding mode approach law is analyzed and a position sensorless control method of permanent magnet synchronous motor based on the variable approach law sliding mode observer is proposed. By extending the sliding mode current observer equation and combining the sliding mode observer with the variable approach law, a new idea is provided for estimating the rotor speed and position. At the same time, a sensorless vector control system based on this method was established. Simulation and results analysis verify the feasibility of the method. The observer can track the actual position of the rotor well, and the dynamic response is fast, which effectively suppresses the chattering of the system.

关 键 词：永磁同步电动机 无传感器控制 滑模观测器 趋近律 

分 类 号：TH16[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]