Analytical prediction for electromagnetic performance of interior permanent magnet machines based on subdomain model
Analytical prediction for electromagnetic performance of interior permanent magnet machines based on subdomain model
复制标题
基于子域模型的内置式永磁电机电磁性能解析预测
作者：
K. Shin;Hyung;Han;Jang
针对内置式永磁电机的定子和复杂转子结构，提出了一种计算其电磁性能的分析模型。使用子域法，我们提出了一个简化的分析模型，认为IPM机的磁特性。通过求解每个简单和规则子域中的场控制方程，即，磁体、屏障、气隙、槽开口和槽，然后将边界条件应用于这些子域之间的界面。该分析模型准确地考虑了槽之间的相互作用、磁体的相对反冲磁导率和边界条件的影响。磁场和电磁性能的分析方法得到的与有限元分析得到的结果进行了比较。最后，分析预测与实测数据进行了比较，以确认本文提出的方法的有效性。本文提出了一种分析模型，用于计算的内部永磁（IPM）电机，占定子和复杂的转子结构的电磁性能。使用子域法，我们提出了一个简化的分析模型，认为IPM机的磁特性。通过求解每个简单和规则子域中的场控制方程，即，磁体、屏障、气隙、槽开口和槽，然后将边界条件应用于这些子域之间的界面。该分析模型准确地考虑了槽之间的相互作用、磁体的相对反冲磁导率和边界条件的影响。磁场和电磁性能的分析方法得到的与有限元分析得到的结果进行了比较。最后，将分析预测结果与实测数据进行了比较，以验证本文方法的有效性。
This paper presents an analytical model for the computation of the electromagnetic performance in interior permanent magnet (IPM) machines that accounts for the stator and the complex rotor structure. Using the subdomain method, we propose a simplified analytical model that considers the magnetic properties of the IPM machine. The analytical solutions are derived by solving the field-governing equations in each simple and regular subdomain, i.e., magnet, barrier, air gap, slot opening, and slot, and then applying the boundary conditions to the interfaces between these subdomains. The analytical model accurately accounts for the influence of the interaction between the slots, the relative recoil permeability of the magnets, and the boundary conditions. The magnetic field and electromagnetic performance obtained using the analytical method are compared with those obtained using finite element analysis. Finally, the analytical predictions are compared with the measured data in order to confirm the validity of the methods proposed in this paper.This paper presents an analytical model for the computation of the electromagnetic performance in interior permanent magnet (IPM) machines that accounts for the stator and the complex rotor structure. Using the subdomain method, we propose a simplified analytical model that considers the magnetic properties of the IPM machine. The analytical solutions are derived by solving the field-governing equations in each simple and regular subdomain, i.e., magnet, barrier, air gap, slot opening, and slot, and then applying the boundary conditions to the interfaces between these subdomains. The analytical model accurately accounts for the influence of the interaction between the slots, the relative recoil permeability of the magnets, and the boundary conditions. The magnetic field and electromagnetic performance obtained using the analytical method are compared with those obtained using finite element analysis. Finally, the analytical predictions are compared with the measured data in order to confirm the validity o...