三相盘式感应电动机定子磁场研究  

Study on the Stator Magnetic Field of Three-Phase Disc Induction Motors

作　　者：上官璇峰[1] 杨帅[1] 

机构地区：[1]河南理工大学,焦作454000

出　　处：《微特电机》2015年第10期1-4,共4页Small & Special Electrical Machines

摘　　要：旨在研究三相盘式感应电动机定子磁场沿径向的变化规律。分别采用解析法、分环法和三维有限元法求解气隙磁密,并绘出其基波幅值随半径变化的曲线。通过比较和分析三种方法的计算结果,揭示了其存在差异的原因,并在解析法的基础上提出了径向气隙系数。经验证,使用径向气隙系数计算的结果和三维有限元法计算的结果基本吻合,可以准确地反映气隙磁密随半径的变化规律。The purpose of this paper is to study the changing discipline of stator magnetic field of three- phase disc induction motors along the radial direction. Analytical method,sub- loop calculation method and 3D finite element method（ FEM） were adopted to get the air- gap flux density and variation curve of the fundamental harmonic amplitude of air-gap flux density with radius was drawn. Through the comparison and analysis of the result of the three methods,the reason of the difference was discovered and a radial air- gap coefficient was put forward. The verified result shows that the calculated result of radial air- gap coefficient matches well the 3D FEM,and can accurately reflect the air- gap flux density with the change of radius.

关 键 词：三相盘式感应电动机 解析法 三维有限元法 径向气隙系数 

分 类 号：TM346[电气工程—电机]