Control system of AC hybrid magnetic bearings based on linear quadratic method of control theory strategy

Author

Yan, Chen ; Wu Xi ; Yihong, Wang ; Jing, Lu ; Huangqiu, Zhu

Author_Institution

Sch. of Electr. & Inf. Eng., Jiangsu Univ., Zhenjiang

fYear

2008

fDate

16-18 July 2008

Firstpage

474

Lastpage

478

Abstract

The state equation of five degrees of freedom rotor system suspended by AC hybrid magnetic bearings is given, and the approach to how to use linear quadratic method of optimal control theory to design a centralized and decentralized parameter controller is introduced. The simulation analysis between the centralized and decentralized parameter controllers is completed using MATLAB software. The digital control system based on TMS320F2812 DSP for AC magnetic bearings has been designed and tested using the decentralized control arithmetics. The research results have shown that the decentralized controller based on linear quadratic method meets performance requirements of AC magnetic bearing system, and has good control effect when the speed of the rotor runs under 30000 rpm.

Keywords

AC machines; decentralised control; linear quadratic control; machine control; magnetic bearings; rotors; AC hybrid magnetic bearings; AC magnetic bearing system; MATLAB software; TMS320F2812 DSP; decentralized control arithmetics; decentralized parameter controller; digital control system; linear quadratic method; optimal control theory; rotor system; state equation; Analytical models; Centralized control; Control systems; Control theory; Digital control; Equations; MATLAB; Magnetic analysis; Magnetic levitation; Optimal control; AC; Controller; Hybrid Magnetic Bearing (HMB); Linear Quadratic (LQ); State equation;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference, 2008. CCC 2008. 27th Chinese

Conference_Location

Kunming

Print_ISBN

978-7-900719-70-6

Electronic_ISBN

978-7-900719-70-6

Type

conf

DOI

10.1109/CHICC.2008.4605067

Filename

4605067