Title :
Robust fuzzy control of a nonlinear magnetic bearing system with computing time delay
Author :
Zheng, Kai ; Liu, Heng ; Yu, Lie
Author_Institution :
Key Lab. of Minist. of Educ. for Strength & Vibration, Xian Jiaotong Univ., Xian
Abstract :
This paper presents a robust fuzzy logic-base control scheme for a nonlinear magnetic bearing system with computing time delay. A proper Takagi-Sugeno fuzzy model is chosen to represent the nonlinear magnetic bearing. A fuzzy-model-based PDC controller is design in terms of a proposed delay-dependent stabilization criterion which guarantees the asymptotic stability of the fuzzy model. Simulation show the effectiveness and superiority of the proposed method.
Keywords :
asymptotic stability; control system synthesis; delays; fuzzy control; magnetic bearings; mechanical variables control; nonlinear control systems; Takagi-Sugeno fuzzy model; asymptotic stability; computing time delay; delay-dependent stabilization criterion; fuzzy-model-based PDC controller design; nonlinear magnetic bearing system; robust fuzzy logic-base control scheme; Asymptotic stability; Control systems; Delay effects; Fuzzy control; Fuzzy logic; Fuzzy systems; Nonlinear control systems; Nonlinear magnetics; Robust control; Takagi-Sugeno model; LMI; PDC; T-S model; magnetic bearing; stability; time delay;
Conference_Titel :
Advanced Intelligent Mechatronics, 2008. AIM 2008. IEEE/ASME International Conference on
Conference_Location :
Xian
Print_ISBN :
978-1-4244-2494-8
Electronic_ISBN :
978-1-4244-2495-5
DOI :
10.1109/AIM.2008.4601770
