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This paper presents a coordinated emergency voltage control scheme against long-term voltage instability. It uses a set of distributed controller groups, each controller monitors load voltage in a zone and takes local actions to keep the system voltage stable. Emergency actions are coordinated and optimized with information exchanges between controllers, an action criterion is introduced to avoid...
The consensus problem for multi-agent systems with time-varying communication and input delays and dynamically changing communication topology is investigated in this paper based on graph theory. The condition for solving the consensus problem is that the graph of the communication topology is repeatedly jointly rooted or the union of the graph is rooted. The result is extended to randomly switching...
This paper is concerned with the linear quadratic regulation (LQR) problem for linear continuous-time systems with distributed input delay. In this paper, we address the LQR problem by first establishing a duality between it and a smoothing problem for an associated stochastic backward system with output delay. An analytical solution to the LQR control is then derived by solving the smoothing problem...
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