Title :
Feedback linearization control for a hybrid magnet levitation system
Author :
Shi, Liming ; Zhang, Haibo
Author_Institution :
Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing
Abstract :
Due to feasible range of equivalent gap length in a hybrid magnet levitation system (HMLS) is wider, parameters used in linear control based on small-signal analysis is not suitable for robustness and response of the levitation system. This paper presents a feedback linearization control method for HMLS by transforming state variables to linear control system. A controller is built to control the levitation dynamic performance independence on gap length. Dynamic numerical simulations and experiments demonstrate better performance, and the robustness with respect to parameter variations and load disturbance is verified.
Keywords :
fault diagnosis; magnetic levitation; feedback linearization control method; hybrid magnet levitation system; load disturbance; parameter variations; small-signal analysis; Acceleration; Control systems; Linear feedback control systems; Magnetic analysis; Magnetic levitation; Magnetic variables control; Nonlinear dynamical systems; Vehicle dynamics; Vehicles; Voltage control;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
