Analysis of hybrid magnetic bearing with a permanent magnet in the rotor by FEM

被引：75

作者：

Xu, YL ^{[1
]}

Dun, YQ

Wang, XH

Kong, Y

机构：

[1] Shandong Univ, Inst Elect Engn, Shandong 250061, Peoples R China

[2] Shandong Med Coll, Informat Ctr, Shandong 250002, Peoples R China

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2006年 / 42卷 / 04期

关键词：

flywheel system; hybrid magnetic bearing; permanent magnet excitation; three-dimensional (3-D) FEM analysis;

D O I：

10.1109/TMAG.2006.871396

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：

The structure and operating principle of a new kind of hybrid magnetic bearing (HMB) with permanent magnets in the rotor are introduced in this paper. Three-dimensional FEM analysis models of HMB are built first, then air-gap flux density distribution under different conditions, X-Y magnetic coupling, and the force-current characteristics are studied in sequence, some of which are compared with other kinds of magnetic bearings to throw light on the advantages of the presented HMB. A prototyped HMB is manufactured in the application of the satellite attitude control/energy storage flywheel system with angular moments of 15 Nms at a speed of 30 000 rpm. It is verified by theoretical analysis and prototyped experiments that the proposed HMB features simple structure, low power loss, little X-Y magnetic coupling, good force-current characteristics, and, finally, high operating reliability.

引用

页码：1363 / 1366

页数：4

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