Abstract
Fast Cut Back (FCB) thermal power units can be used as black-start units to boot up the power system after blackout. Based on the analysis of the important role of FCB units in restoring a power system, the optimal location of FCB units are determined with an optimization model. The objective function of this model is to minimize all the generators' restoration time, considering the constraints such as generating units' characteristics and transmission lines' charging time, etc. Such a model is computational intensive due to its combinational nature. Ordinal Optimization technique is thus applied in this paper as an efficient tool to obtain enough good solutions with a high probability. This technique succeeds in reducing the computational burden remarkably and well satisfies the engineering requirements. The simulation results of a practical power system prove that the reasonable location of FCB units based on the optimization can significantly contribute to reduce the restoration time.
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