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Impact of network topology optimization on power system reliability

Due to the increasing power demand and the aging equipment, the electric power grid is faced with pressing challenges for maintaining its power supply reliability in an efficient and economical manner. Network topology optimization (NTO) is a promising, cost-effective method to improve the operational flexibility and the overall reliability of power systems. In this study, NTO is incorporated into the conventional reliability evaluation framework, and case studies are conducted based on a representative reliability test system. The simulation results demonstrate that the overall power system reliability could be improved assuming NTO is incorporated into the power system operation procedure. This study could offer some insights into improving power supply reliability by more fully utilizing the existing assets in a power system.