Decentralized Model Reference Adaptive Control in Delay Large Scale Systems

In this paper, the problem of decentralized model reference adaptive control (MRAC) for a class of large scale systems with time varying delay in states and interconnected term are studies. For practical application, upper bounds of the interconnection terms are considered to be unknown and need not to be known for the designing. Time varying delays in the nonlinear interconnection terms are bounded and nonnegative Continuous functions and their derivatives are not necessaries be less than one. Using lyapunov theory proves that the uncertain large-scale time-delay systems track reference model with a bounded and small error. The effectiveness of the proposed approaches is illustrated by a numerical example.