The problem to supply electric power stably has been more important year by year since electric power system has become large and complex, and many stabilizing equipments have been set up. Therefore, the research on, for example, decentralized system and nonlinear control with analytic approach is strongly desired.
In the decentralized control proposed by the authors, a step for considering the robustness of the system and finding efficiently feedback gains of AVR. GOV plays an important role. The aim of this paper is to propose “equilibrium point control”, in which the feedback gains can be determined by observing equilibrium points of the system. First, a model system and the swing equation are explained. Next, the equilibrium point control is introduced and an approach for considering limiters of AVR.GOV is represented. Finally, after summing up the results, it is summarized that the proposed control is simple and flexible for considering the robustness and limiters.
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