Modeling and design of permanent magnet biased radial-axial magnetic bearing by extended circuit theory

被引：0
|
作者：
Huang, Lei [1 ]
Zhao, Guangzhou [1 ]
Nian, Heng [1 ]
He, Yikang [1 ]
机构：
[1] Zhejiang Univ, Coll Elect Engn, Hangzhou 310027, Peoples R China
来源：
2007 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS 1-4 | 2007年
关键词：
D O I：
暂无
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：
Permanent magnet biased radial-axial hybrid magnetic bearing possesses complicated structure, which makes the design and analysis difficult. In this paper, the permeances of each part of the flux path including the leakage permeance are analyzed thoroughly by considering the geometry structure and the distribution of air gap flux. Then the relatively precise mathematical model of the hybrid magnetic bearing is deduced. Based on the mathematical models of the hybrid magnetic bearing, a prototype hybrid magnetic bearing is designed, and the calculation formulas of magnetic suspension forces, the force-displacement coefficients and the force-current coefficients are deduced. Finally, the design and analysis of the prototype hybrid magnetic bearing was verified by 3D electromagnetic finite element method.
引用
收藏
页码：1701 / 1706
页数：6
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