Optimal power system operation by EMS and MOS in KPX

Korea power exchange (KPX) plays a pivotal role in South Korea's electric power industry. As a neutral and independent organization, KPX coordinates the flow of electricity through all transmission networks of South Korea, ensure reliable operation of the grid, operate cost-based competitive electricity market, and plan long-term generation/transmission expansion to secure reliable power supply. To run real time power system, EMS (energy management system) and MOS (market operation system) are run periodically. Here I will focus on introducing EMS, MOS main functions to operate reliable power system and power market. This paper will discuss on the operation status of 4 axes of EMS applications; SCADA, AGC/ED, NA, DTS, MOS-EMS relationship, and IT system enhancement.