Decoupling Design and Analysis of a New Radial Hybrid Magnetic Bearing

被引：0
|
作者：
Zhong Z. [1 ]
Cai Z. [1 ]
Qi Y. [1 ]
Duan Y. [1 ]
Zhu C. [2 ]
机构：
[1] College of Mechanical and Control Engineering, Guilin University of Technology, Guilin
[2] College of Electrical Engineering, Zhejiang University, Hangzhou
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2022年 / 42卷 / 04期
基金：
中国国家自然科学基金;
关键词：
4-pole; Electromagnetic force calculation; Magnetic circuit decouping; Permanent magnet biased; Radial hybrid magnetic bearings;
D O I：
10.13334/j.0258-8013.pcsee.210467
中图分类号：
学科分类号：
摘要：
The magnetic coupling problem of the electromagnetic suspension bearing not only affects the rigidity of the magnetic bearing, but also increases the control difficulty. To solve the problem of magnetic circuit coupling of electromagnetic bearings from the mechanical structure, a new radial hybrid magnetic bearing structure was proposed, and a radial hybrid magnetic bearing structure with 6 independent magnetic circuits and 4 poles (2 pairs of poles) was designed in this paper. The electromagnetic force analytical formula of the structure was derived by the equivalent magnetic circuit method, and the magnetic field distribution, electromagnetic force characteristics and coupling characteristics were simulated and analyzed by the three-dimensional finite element method. The calculation and simulation results show that the proposed radial hybrid magnetic bearing structure with 6 independent magnetic circuits and 4 poles (2 pairs of poles) can well realize the electromagnetic field decoupling in the radial direction. It provides a theoretical reference for the implementation of subsequent control methods. © 2022 Chin. Soc. for Elec. Eng.
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页码：1596 / 1605
页数：9
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