永磁直线同步电动机的磁场谐波扰动分析

Analysis of harmonics magnetic field disturbance of permanent-magnet linear synchronous motor

分析永磁直线同步电动机的电磁推力,得出永磁体的磁链为影响推力的重要因素。通过温度和交变磁场频率对永磁体磁性影响的研究,以及由电动机定子电流、绕组间的自感和互感等,通过派克变换对端部效应的形成原因和谐波成分的分析,进一步明确了磁场谐波扰动对永磁直线同步电动机推力的影响。

Electro-magnetic thrust of Permanent Magnetic Linear Synchronous Motor（PMLSM） is analyzed,the flux linkage of magnet is an important factor which effects electro-magnetic thrust.The research which temperature and frequency of alternating magnetic field effects magnetic properties,and the analysis of the form of end effects and harmonics through stator current,self inductance,mutual inductance and so on based on park transformation explicates that magnetic field harmonics disturbance influences the thrust of PMLSM.