Northeast Asia power system interconnection and distributed resources operation plans in South Korea

This paper presents the Northeast Asia power system interconnection (NEA-PSI), distributed energy resources (DERs) and energy storage system (ESS)-based operation strategies targeting supply-demand balance (SDB) and stable operations for the South Korean power system. In the NEA interconnection and renewable energy sources (RESs) insertion, the Korean power system should prepare large reserve capacities for unexpected transmission line disconnection or connection. To meet this requirement, the future energy management system (EMS) should be flexible to include PSI, DERs, and ESSs in the unit dispatch to increase security in utilizing power system interconnection, renewable energy, storage systems, and controllable loads to meet future demands. In this paper, we suggest how to design supply-demand balance strategies for stable operations under unexpected situations for the NEA-PSI, DERs, and large-scale ESS insertion in the South Korean power system.