The research of speed sensorless control of PMSM based on MRAS and high frequency signal injection method

摘要：

When PMSM is controlled without speed sensor the model reference adaptive system (MRAS) has not the good estimation accuracy of rotor position in low speed because it relies on parameters of the motor severely. For this problem, this paper takes algorithms switching control method at the full speed range, in high speed segment using the MRAS, while in low speed segment using high frequency signal injection method. And through the velocity error average method gets switch points of the two control algorithms. Through the simulation and results analysis prove that the motor at full speed range, which is controlled with different control algorithm under different speed segments, the speed estimation accuracy is better and has the ideal control effects.

关键词： Permanent magnet synchronous motor Sensor-less Model Reference Adaptive System High Frequency Signal Injection Algorithms Switching Control

作者: Gang Zhao Junjie Liu Jinzhao Feng

作者单位: School of Electrical Engineering Tianjin University of Technology Tianjin, China

会议类型: 国际会议

会议名称: 2010 International Conference on Computer,Mechatronics,Control and Electronic Engineering(2010计算机、机电、控制与电子工程国际会议 CMCE 2010)

会议地点: 长春

会议语种:英文

页码: 175-178

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）