On the Unstable Equilibrium Points and System Separations in Electric Power Systems: A Numerical Study

An equilibrium problem of electric power system is closely associated with the system separations. An effective three-step scheme is developed to compute the system separations subject to different contingencies. For illustrative purposes, the proposed scheme is applied to small-sized power system testing models with promising results. Simulations are performed on the models of electric power systems, which demonstrate the effectiveness of the proposed scheme. This scheme has the potential of being applied to the contingency analysis of large-scale systems.

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