Magnetic Field Analysis of an Iron-Cored Tiered Type Permanent Magnet Spherical Motor Using Modified Dynamic Reluctance Mesh Method

被引：27

作者：

Chai, Feng ^{[1
]}

Yu, Yanjun ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Elect Engn, Harbin 150080, Peoples R China

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2020年 / 67卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Rotors; Stator cores; Magnetic fields; Air gaps; Stator windings; Reluctance motors; Spherical motor; dynamic reluctance mesh (DRM) method; interior permanent magnet; lumped-parameter analysis (LPA); magnetic field distribution; multi-degree-of-freedom (multi-DOF); iron-cored; ANALYTICAL-MODEL; ACTUATOR; DESIGN;

D O I：

10.1109/TIE.2019.2939964

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This article develops a modified dynamic reluctance mesh (DRM) method that can be utilized to calculate and analyze the magnetic field of the iron-cored tiered-type permanent magnet spherical motor (T-PMSpM) effectively and efficiently, with the multi-degree-of-freedom (multi-DOF) movements taken into account. According to the structural characteristic of the iron-cored T-PMSpM, the tilting function part, including the tilting stator and rotor, is equivalent to a dynamic lumped-parameter magnetic network model. Besides, the magnetic saturation phenomenon of the iron materials is also considered. The DRM results of magnetic field distribution, flux linkage and back electromotive force (EMF) show a good agreement with the three-dimensional finite-element method results. For further verification, a prototype motor of the iron-cored T-PMSpM has been manufactured. The back EMF curves with different rotor tilting positions are measured by experiments and compared with the calculated results.

引用

页码：6742 / 6751

页数：10

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