基于Matlab的气隙磁场教学实践  

Practice Teaching of Air-gap Magnetic Field Based on Matlab

作　　者：卢琴芬[1] 陈克威 郑梦飞 LU Qinfen;CHEN Kewei;ZHENG Mengfei(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学电气工程学院,杭州310027

出　　处：《电气电子教学学报》2023年第1期102-104,共3页Journal of Electrical and Electronic Education

基　　金：国家自然科学基金面上项目(NFSC51777190)。

摘　　要：气隙磁场是电机机电能量转化的媒介,也是电机学理论教学中的重要内容。通常,这部分知识点通过全电流定律来介绍,侧重于定性的分析,没有定量的计算和波形的影响因素分析。基于Matlab的许-克映射(Schwarz-Christoffel)工具箱,编制仿真程序,能够快速计算任意定转子结构下电机的气隙磁密波形,从而能够分析励磁电流、电枢电流、齿槽效应、磁路饱和、气隙长度等对气隙磁密的影响,为电机学类课程的教学提供重要的支持。The air gap magnetic field is electromechanical energy conversion medium of electrical machine,which is most important theoretical content of electrical machine course.In general,this knowledge points are introduced by the total current law by qualitative analysis,so that the quantitative calculation and the influence factor on waveform are absent.The simulation program is made based on Schwarz-Christoffel mapping tool box of Matlab in order to quickly calculate air gap flux density waveform of motor with any slot and rotor structure.Therefore,the influence of excitation current,armature current,cogging effect,magnetic field saturation and air gap length on the air gap flux density are analyzed.This program can provide the important support for the teaching of electrical machine courses.

关 键 词：气隙磁密 许克变换 齿槽效应 

分 类 号：G426[文化科学—课程与教学论]