Sensorless Control of PMSM Based on Adaptive Sliding Mode Observer

摘要：

A novel speed and position sensorless control method for permanent magnet synchronous motor (PMSM) based on sliding mode observer is presented.In this paper,the sliding mode observer’s structure and its design method are described.First,by adopting mathematical model of PMSM in a stationary αβ reference frame,stator currents are observed to achieve the stator speed and position of PMSM by using sliding mode observer.At the same time,the parameter variations of PMSM,the estimated rotor speed and position are obtained through a Lyapunov function.A novel equation is obtained to estimate rotor speed.Finally,simulation results show that the proposed observer can achieve satisfying performance and the feasibility is verified.

关键词： sliding mode observer sensorless control PMSM parameter variation

作者: Guo Shuai He Jinbao

作者单位: Department of Mechanical & Electronic Engineering and Automation,Shanghai University,Shanghai,200072,China

会议类型: 国际会议

会议名称: International Conference on Modelling,Identification and Control(模拟、鉴定、控制国际会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）