Permanent Magnet Biased Bearing of Suspension System


Article Preview

PM (Permanent Magnet) biased magnetic bearing with PM to replace the magnetic field produced by electromagnet an Active Magnetic Bearing generated static bias magnetic field, it can reduce the power consumption of power amplifier to reduce the number of turns of magnet safety, reduce the volume of magnetic bearings, reducing electromagnetic coil operating current, thereby reducing the power amplifier power control system and heat sink size, magnetic bearings significantly reduce power loss, and fundamentally reduce the cost of bearing. In this paper, a kind of PM biased magnetic bearings, describes its structure and working principle, derived a mathematical model of magnetic bearing and magnetic circuit of PM biased magnetic bearings are calculated, given the specific PM biased magnetic bearing size and accordingly calculate the parameters of magnetic bearings. A magnetic model constructed using Simulink simulation method, and constructed using this method, magnetic bearing specific mathematical model simulation results show that the rotor position in the balance, X and Y decoupling between the control winding, while the deviation from equilibrium position time, X and Y control coupling between the windings, the simulation results and the calculation results.



Advanced Materials Research (Volumes 383-390)

Edited by:

Wu Fan




M. Zong et al., "Permanent Magnet Biased Bearing of Suspension System", Advanced Materials Research, Vols. 383-390, pp. 5529-5535, 2012

Online since:

November 2011




[1] Li Zeng, Huanqiu Zhu etc. Research of the model of hybrid magnetic bearing's control system with one freedom. [J] Nanjing: Journal of Nanjing University of Aeronautics & Astronautics, 1998. 685-670.

[2] Guan Wang. Research of the permanent magnet biased magnetic bearing(master thesis). Nanjing: Nanjing University of Aeronautics and Astronautics, (2004).

[3] Fukata S, Yutani K. Characteristics of electromagnetic systems of magnetic bearings biased with permanent magnets[C]. Proc. 5th Int. Symp. Magnetic bearings, Massachusetts Institute of Technology Cambridge, Massachusetts, USA, 1998:234-243.

[4] Fengli Yang. Design of the electromagnetic suspension system with one freedom and its control(master thesis). Changsha, Central South University, (2005).

[5] Ming Zong. Design of the permanent magnet biased hybrid magnetic bearing and the research of its control method(doctoral dissertation). Shenyang: Shenyang University of Technology. (2007).

[6] Zong Ming, Ba Li, Wang Fengxiang, et. Study on Novel Hybrid Type Power Amplifier for Magnetic Bearing. POWERCON2008. India. 2008. 10. 12-15.


Fetching data from Crossref.
This may take some time to load.