Title :
A nonlinear output feedback control method for magnetic bearing systems
Author :
Liu, Kang-Zhi ; He, Rong
Author_Institution :
Department of Electrical & Mechanical Engineering, Chiba University 1-33 Yayoi-cho, Inage-ku, Chiba 263-8255, Japan
Abstract :
In this paper, a nonlinear output feedback control method is proposed for a magnetic bearing system which has a strong nonlinearity in the magnetic actuator. The basic idea is to make full use of the feature that the dynamics part is linear and hence can be stabilized by output feedback when the output of the actuator is regarded as a virtual input. Then it is shown that the backstepping and completing square techniques enable the construction of the real input using measured output only.
Keywords :
Actuators; Backstepping; Magnetic forces; Magnetic levitation; Output feedback; Rotors; Magnetic Bearing systems; Magnetic Force; Nonlinear Output Feedback Control; Virtual Input;
Conference_Titel :
European Control Conference (ECC), 2003
Conference_Location :
Cambridge, UK
Print_ISBN :
978-3-9524173-7-9
