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论文类型：期刊论文

发表时间：2010-12-01

发表刊物：CIRCUITS SYSTEMS AND SIGNAL PROCESSING

收录刊物：SCIE、EI、Scopus

卷号：29

期号：6

页面范围：1089-1102

ISSN号：0278-081X

关键字：Uncertain switched delay systems; Hysteresis switching law; Adaptive control; Robust H(infinity) control; Multiple Lyapunov functions

摘要：This paper investigates the robust H (a) control problem for a class of uncertain switched delay systems with parameter uncertainties, unknown nonlinear perturbations, and external disturbance. Based on the multiple Lyapunov functions method, a sufficient condition for the solvability of the robust H (a) control problem is derived by employing a hysteresis switching law and variable structure controllers. When the upper bounds of the nonlinear perturbations are unknown, an adaptive variable structure control strategy is developed. The use of the adaptive technique is to adapt the unknown upper bounds of the nonlinear disturbances so that the objective of asymptotic stabilization with an H (a)-norm bound is achieved under the hysteresis switching law. A numerical example illustrates the effectiveness of the proposed design methods.