中国电机工程学报2024，Vol.44Issue(8)：3287-3296,中插30,11.DOI:10.13334/j.0258-8013.pcsee.223098
计及周期/半周期性边界条件的永磁电机子域模型
A Subdomain Model of Permanent Magnet Motors Considering Periodic/Half-periodic Boundary Conditions
摘要
Abstract
In this paper,a subdomain model of surface-mounted permanent magnet motors considering periodic/half-periodic boundary conditions is proposed,which provides a fast and efficient tool for the design and optimization of large-capacity direct-drive multiphase permanent magnet propulsion motors used in ships.The principle and realization method of periodic boundary condition and half-periodic boundary condition are explained,and they are applied to the subdomain model based on equivalent surface currents to solve the air-gap magnetic field of the motor.The dimension and solving speed of the harmonic coefficient matrix in the subdomain model of the three solving domains are compared,indicating that the subdomain model considering the periodic/half-periodic boundary conditions can greatly reduce the matrix dimension and the solving time while ensuring the accuracy of the results.The no-load and loaded experiments are carried out.The experimental results of no-load back EMF and loaded torque are in good agreement with the analytical ones,which further illustrate the correctness of the subdomain model under the periodic/half-periodic boundary conditions.关键词
表贴磁极永磁电机/周期性边界条件/半周期性边界条件/子域法/等效面电流Key words
surface-mounted permanent magnet motors/periodic boundary condition/half-periodic boundary condition/subdomain method/equivalent surface current分类
信息技术与安全科学引用本文复制引用
刘辉,吴新振,陈春涛,郑晓钦..计及周期/半周期性边界条件的永磁电机子域模型[J].中国电机工程学报,2024,44(8):3287-3296,中插30,11.基金项目
国家自然科学基金项目(52037005,52277058). Project Supported by National Natural Science Foundation of China(52037005,52277058). （52037005,52277058）
