摘要
小体积的永磁电机考虑到制造工艺及成本,其转子一般会采用多极的环形永磁体。随着家电及信息产业的发展,环形永磁体在小型永磁电机中的应用越来越广泛。通过Ansoft有限元对整数槽和分数槽环形永磁体无刷直流电动机气隙磁场波形、谐波含量进行分析,对比了与表面贴装式磁钢的区别,并利用有限元对漏磁系数、极弧系数等参数进行计算,得出相应的分析数据。
Based on the manufactural technic and the production cost on small cubage permanent magnet,rotor is commonly adopted multipolar ring permanent magnet.With the development of household electrical appliances and information technology,ring permanent magnet is widely used in small cubage permanent magnet motors.The waveform of air gap flux density and the harmonic distortion in permanent magnet brushless DC motor were analyzed with integer slot and fractional slot by means of Ansofi finite element method.Comparing the differences with surface mount magnet steel and calculating parameters of leakage coefficient and pole-arc coefficient with finite element method,relative analytical data were elicited.
出处
《微特电机》
北大核心
2014年第5期53-55,59,共4页
Small & Special Electrical Machines
关键词
环形永磁体
永磁无刷直流电动机
漏磁系数
极弧系数
有限元分析
ring permanent magnet
permanent magnet brushless DC motor
leakage coefficient
pole-arc coefficient
finite element method
