matlab转子位置检测,基于复合算法的PMSM转子位置检测研究

The Research of PMSM Rotor Position Detection Based on Compound Algorithm

Ai Hong

1

艾红(1963-)，女，教授，从事嵌入式系统、电力电子技术、复杂系统优化等方面的研究；

Wang Letian

1

王乐天(1989-)，男，硕士，从事电力电子，电机驱动的研究；

1、Department of automation, School of Automation, Harbin University of Science and Technology, Harbin 150080

Abstract：In condition of there is not rotor position detection method for full speed in the study of PMSM sensorless control, this paper tries a kind of compound algorithm by dividing the high speed and low speed into different section, to inject high frequency in low speed, detect the current signal and get the rotor position. The sliding mode observer designed in high speed to detect BEMF and get the rotor position. To extract the synthetic speed through the integral operation by weighted algorithm within switched interval. This method has advantages of insensitive to motor parameters variation, self-adaption of frequency and amplitude and fast response speed and some others, the correctness and feasibility of this method was verified through the simulation in MATLAB/SIMULINK environment.