NDLI: Adaptive Robust L2-Gain Hybrid Controller Design for a Class of Uncertain Nonlinear Systems

Content Provider	IEEE Xplore Digital Library
Author	Maode Yan Yuyao He Qisheng Wu
Copyright Year	2006
Description	Author affiliation: Sch. of Inf. Eng., Chang'an Univ., Xi'an (Maode Yan; Yuyao He; Qisheng Wu)
Abstract	In order to deal with the mismatched unknown disturbance and nonparametric uncertainties in nonlinear systems, we propose an adaptive robust $L_{2}-gain$ hybrid controller for a class of nonlinear systems with uncertainties. Our controller employs a robust $L_{2}-gain$ control strategy to deal with the unknown disturbance, and a state reference adaptive control algorithm with the nonlinear damp term to eliminate the nonparametric uncertainties in the nonlinear systems. Our new hybrid controller can guarantee robust stability of the close loop control system, and make it have less than or equal to gamma for $L_{2}-gain$ performance index. Compared with the classical adaptive control procedure, it allows the mismatched unknown disturbance and bounded nonparametric uncertainties in the systems. The robustness of the closed loop system is enhanced. Finally, simulation results are provided to illustrate the correctness and flexibility of the controller
Starting Page	2091
Ending Page	2095
File Size	130873
Page Count	5
File Format	PDF
ISBN	1424403324
DOI	10.1109/WCICA.2006.1712727
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Control systems Uncertainty Nonlinear systems Adaptive control Nonlinear control systems Robust control Programmable control Robust stability Performance analysis Uncertain nonlinear system State reference adaptive control L
Content Type	Text
Resource Type	Article

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