基于高增益观测器的非线性系统自适应模糊滑模控制

Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (7): 1723-1727.

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Adaptive fuzzy sliding mode control for a class of nonlinear systems based on high gain observer

LIU Yun-feng¹, PENG Yun-hui², YANG Xiao-gang¹, MIAO Dong¹, YUAN Runping³

1. 303 Section, The Second Artillery Engineering Coll., Xi’an 710025, China;
2. The Second Artillery Command Center, Beijing 100085, China;
3. School of Electronic and Information Engineering, Xi’an Jiaotong Univ., Xi’an 710049, China

Received:2008-04-06 Revised:2008-08-08 Online:2009-07-20 Published:2010-01-03

Abstract

Abstract: By combining adaptive fuzzy logic systems with sliding mode,a stable adaptive fuzzy sliding mode control method based on high gain observer is proposed for a class of nonlinear systems with uncertainties and external bounded disturbances.It is assumed that only can the system output variable be measured,the state variable are estimated via a high gain observer that guarantee the uniformly ultimate bounds of the observer errors.By using Lyapunov method,the adaptive fuzzy sliding mode control law and the adjusted parameter law on-line are given.The proposed approach can not only ensure the stability of the closed-loop system but also guarantee the uniformly ultimate bounds of the tracking errors.Simulation results demonstrate the effectiveness of the proposed method.

CLC Number:

TP273

LIU Yun-feng, PENG Yun-hui, YANG Xiao-gang, MIAO Dong, YUAN Runping. Adaptive fuzzy sliding mode control for a class of nonlinear systems based on high gain observer[J]. Journal of Systems Engineering and Electronics, 2009, 31(7): 1723-1727.

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Adaptive fuzzy sliding mode control for a class of nonlinear systems based on high gain observer

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