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In this paper, the problem of H∞ dynamic output feedback control is considered for time-delay systems. First, a new method is proposed to obtain the H∞ performance criterion with decoupling structure, based on which the dynamic output feedback H∞ controller is designed. Then, the results are extended to the time-delay systems and the dynamic output feedback H∞ control problem is solved for systems with time-varying delay by employing the descriptor system approach. All the conditions are delay-dependent and are expressed by the linear matrix inequalities (LMIs) that is convenient to design the controller. Finally, an example is also included to illustrate the obtained results.
Date of Conference: 9-11 Dec. 2009