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Battery Energy Storage System as Frequency Control at Substation based on Defense Scheme Mechanism

Battery Energy Storage System is generally installed to improve reliability in the power grid system, to increase the integration of various energy resources to the grid and to match between power generation supply and load demand in order to enable power operating system more stable and reliable. In power system network, BESS has ability to do a quick response for regulating the grid frequency caused by some interferences. For dealing with such interferences the utilities have applied a defiance scheme mechanism to prevent the gird blackout due to a rapid change of the frequency for a while. This study investigates the role of Battery Energy Storage System as a frequency controller combining with the defense scheme at the high voltage network. Some defense Scheme indicators within Battery Energy Storage System at a substation has been assessed through a software modelling. The results show that Battery Energy Storage System at Substation is able to increase the reliability of grid by such frequency regulation.