A General Analytical Model of Permanent Magnet Eddy Current Couplings

被引：94

作者：

Wang, Jian ^{[1
,2
]}

Lin, Heyun ^{[1
]}

Fang, Shuhua ^{[1
]}

Huang, Yunkai ^{[1
]}

机构：

[1] Southeast Univ, Sch Elect Engn, Nanjing 210096, Jiangsu, Peoples R China

[2] Nanjing Inst Technol, Sch Automat, Nanjing 211167, Jiangsu, Peoples R China

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2014年 / 50卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Coupling; eddy current; permanent magnet; saturation effect; CURRENT BRAKE; CURRENT FIELD; PERFORMANCE; FORMULATION; IRON;

D O I：

10.1109/TMAG.2013.2279073

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An improved practical two-dimensional model for the analytical calculation of the magnetic field distributions in permanent magnet (PM) eddy current couplings is presented to obtain the torque characteristics. By establishing the Cartesian coordinate reference system on the rotating conductor, the PM region is treated as a source of traveling wave magnetic field and then the multi-layer boundary value problem is solved. The formulation for the magnet blocks, the eddy current and saturation effects in the solid secondary back iron, and the equivalence relationships between typical PM shapes, are all reasonably taken into account. Calculation results produced by the proposed analytical model are compared with those from the nonlinear finite element method and experimental measurement.

引用

页数：9

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