Rotor Position and Speed Estimation of PMSM Based on BEMF Method

摘要：

　　Permanent magnet synchronous motor(PMSM)sensorless control is a research hotspot at present.The position and speed estimation of PMSM rotor based on back electromotive force(BEMF)is widely used in industrial control due to its simple principle and high estimation accuracy at high speed.In this paper,the principle of estimating rotor position and speed based on BEMF is deduced by PMSM mathematical model in two-phase stationary coordinate system,and the closed-loop control system of PMSM is designed based on the estimated rotor position and speed.It is also pointed out that there are some problems in the actual implementation of BEMF method,such as integral zero drift,fluctuation of speed estimation,variation of PMSM parameters and limited application scope,and the solutions are given in the end.

关键词： PMSM Rotor Position Speed Estimation

作者: Guanglin Dong Dafang Wang Mingyu Wang

作者单位: School of Automotive Engineering,Harbin Institute of Technology at Weihai,Weihai 264200,China

会议类型: 国际会议

会议名称: 2019 4th International Conference on Automatic Control and Mechatronic Engineering (ACME 2019) 2019年第四届自动控制与机电工程国际会议(ACME 2019)

会议地点: 重庆

会议语种:英文

页码: 210-213

在线出版日期: 2019-05-30（万方平台首次上网日期，不代表论文的发表时间）