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In this paper, a new decentralized variable structure control scheme is proposed for a class of large-scale time-delayed systems with mismatched uncertainties. To overcome the defect that neither time-delay interconnection terms nor uncertainties satisfy the conventional matching conditions, the coefficient matrix of the switching function can be designed to satisfy a new matching condition, meanwhile,...
In this article, a model of singular systems involving time-varying delays and impulses is considered. By establishing a singular delay differential inequality with impulsive initial condition and using the property of M-matrix, some new sufficient conditions ensuring the global exponential stability of the zero solution of singular systems are obtained. The results can extend and improve those of...
Based on using block-pulse functions (BPFs) a new approach for computing optimal control law of linear time-invariant / time-varying, time-delay free / time-delay dynamic systems with quadratic performance index is discussed in this paper. The governing delay-differential equations of dynamic systems are converted into linear algebraic equations by using the operational matrices of integration, delay...
This paper describes a generalized minimum variance control (GMVC) strategy for time varying system (TVS). GMVC is one of the predict control methods, which are effective to time delay system. In TVS, polynominals of the model are noncommutative. Then, the cost function cannot be optimized accurately because a noncommutative noise term remains. This paper applies the direct pseudocommutation method...
Hinfin filter design for systems with time-varying interval delay is investigated in this paper. Improved delay dependent Hinfin performance condition is presented by using the free-weighting matrix approach and considering the relationship among the time-varying delay, its upper bound and their difference. As a result, a modified cone complementary linearisation (CCL) algorithm with a new stopping...
The robust output feedback stabilization problem for state-delayed systems with time-varying delays and saturating actuators is addressed in this paper. The systems considered are continuous-time, with parametric uncertainties entering all the matrices in the system representation. A saturating control law is designed and a region of initial conditions is specified within which local asymptotic stability...
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