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Aimed at the inter-area low frequency oscillation in interconnected power system, the Wide-area PSS considering the time-delay of feedback signals is designed in this paper. The Wide-area PSS is composed with two-channel, the inputs of one channel are local signals without time-delay, the inputs of the other one are global signals with time-delay. Then the state equations of the closed-loop system...
Network-induced delays and packet dropouts are relevant issues that can degrade networked control systems' performance and may even lead to instability. This paper concerns the establishment of a stability criterion for networked control systems (NCSs) consisting of an LTI process and a dynamic feedback controller. Conditions for stability are provided in terms of Linear Matrix Inequalities (LMIs),...
The problem of H∞ observer-based output feedback control for a class of switched systems with time-delay is addressed. By using a new state transformation, a delay-dependent sufficient condition for the problem to be solvable is given in terms of linear matrix inequalities. We show that when all subsystems have H∞ observer-based output feedback controllers satisfying the LMIs, the switched system...
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