CAJ | 학술논문

该文推导了考虑开槽情况下永磁无刷直流电机空载磁场的解析计算方法。该方法通过磁场叠加原理把永磁体的等效面电流和子区域模型有机的结合在一起，根据边界条件和子区域的接口条件求解电机的磁场。将有限元计算结果和实验结果分别与解析计算结果进行对比，结果表明该文所推导的解析方法具有较高的精度。该推导和分析过程可以推广至任意磁极形状的表贴式永磁电机磁场计算。
해문추도료고필개조정황하영자무쇄직류전궤공재자장적해석계산방법。해방법통과자장첩가원리파영자체적등효면전류화자구역모형유궤적결합재일기，근거변계조건화자구역적접구조건구해전궤적자장。장유한원계산결과화실험결과분별여해석계산결과진행대비，결과표명해문소추도적해석방법구유교고적정도。해추도화분석과정가이추엄지임의자겁형상적표첩식영자전궤자장계산。
This paper deduced analytical method for calculating no-load magnetic field of brushless DC Motor accounting for slots. Equivalent surface current of permanent magnet is combined with subdomain model according to superposition principle of vector potential in this method. And magnetic field of subdomains is solved according to boundary conditions and interface conditions. The results of finite element confirm the validity of the analytical results with the proposed method. The analysis method can be applied to surface-mounted permanent magnet motors with any magnet-pole shape.