Input-Output Linearizing Control for Axial Magnetic Bearings
Cao Jianrong,Yu Lie, Xie Youbai
(Xi'an Jiaotong University,Xi'an 710049,China)

Abstract: A nonlinear model is the presented for arotor supported by an axial active magnetic bearing without premagnetization bias current. A nonlinear controller based on dynamic feedback is designed to linea rize and improve the axial system. Simulations are employed to verify the presented scheme. Energy consumption in the axial magnetic bearing with unilateral operate model is reduced and lower than that of the difference configuration with premagnetiza tion bias current.
Keywords: axial magnetic bearing;nonlinear control;feedback linearization