Stability Analysis of Magnetic Bearing with Resonance Circuit

Author

Ming, Zong ; Fengxiang, Wang ; Yidan, Sun ; Jiqiang, Wang

Author_Institution

Sch. of Electr. Eng., Shenyang Univ. of Technol.

Volume

2

fYear

2006

fDate

14-16 Aug. 2006

Firstpage

1

Lastpage

5

Abstract

In this paper, a structure of a radial magnetic bearing with resonance circuit is proposed, which dose not need separate displacement sensors. The operating principle of the radial magnetic bearing is also introduced. The stability of the radial magnetic bearing is analyzed by the control system theory. The analysis shows that the proposed radial magnetic bearing with resonance circuit is unstable in dynamic state process. The simulation study on an example shows that the radial magnetic bearing with resonance circuit can levitate stably by means of a PD controller. But it is of steady-state error

Keywords

PD control; magnetic bearings; magnetic levitation; stability; PD controller; magnetic levitation; radial magnetic bearing; resonance circuit; stability analysis; Circuit stability; Control system analysis; Control systems; Magnetic analysis; Magnetic circuits; Magnetic levitation; Magnetic resonance; Magnetic sensors; RLC circuits; Stability analysis; PD controller; magnetic bearing; magnetic levitation; resonance circuit; simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International

Conference_Location

Shanghai

Print_ISBN

1-4244-0448-7

Type

conf

DOI

10.1109/IPEMC.2006.4778123

Filename

4778123