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Analytical modeling of the magnetic field in axial field flux-switching permanent magnet machines at no-load

机译:空载轴向磁场磁通切换永磁电机中磁场的解析模型

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In this paper an analytical model for prediction of the no-load magnetic field in axial field flux switching permanent magnet machines (FSPM) is presented. The proposed method is based on an exact 2D analytical solution of Maxwell's equations in low permeability regions (stator/rotor slots, air gap, permanent magnets (PMs) and surrounding air regions), using the separation of variables technique. For each region, the magnetic vector potential solution is expressed as a sum of Fourier series. Combining obtained solutions in each region and boundary conditions leads to a set of linear equations which allows calculation of the coefficients of the Fourier series in the different regions. The developed model is validated by comparing magnetic field components for a machine modeled with this analytical model and the finite element method (FEM).
机译:本文提出了一种用于预测轴向磁场通量切换永磁电机(FSPM)中空载磁场的分析模型。所提出的方法基于使用变量分离技术的低磁导率区域(定子/转子槽,气隙,永磁体(PM)和周围空气区域)中麦克斯韦方程组的精确二维解析解。对于每个区域,磁矢量势解都表示为傅里叶级数的总和。将每个区域和边界条件中获得的解结合起来,得出一组线性方程,可以计算不同区域中的傅立叶级数的系数。通过比较使用此分析模型和有限元方法(FEM)建模的机器的磁场分量,可以验证所开发的模型。

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