Abstract
Advanced Power Application Software (PAS), which is considered to have one of the most powerful software functions available in the world, has been implemented in the new Energy Management System (EMS) for KEPCO's National Control Center to continuously monitor and operate Korean power network at a high security level. The PAS is divided into the Real-Time Network Analysis (RTNA) sequence, Study Network Analysis (SNA) sequence, and Dispatcher Power Flow (DPF). The RTNA sequence, comprising all of the currently available state-of-the-art functions is initiated upon any significant change of the power network status, periodically, or manually. The whole sequence can be completed within 5 minutes for a 900-bus network. The SNA sequence including Optimal Power Flow, and DPF can be executed on demand with save cases that have been obtained and modified from RTNA results or previous Study results. All of the PAS functions were put in trial operation in September 1988, and made fully operational since October 1988. It has greatly contributed to a secure power supply of the KEPCO power network including the Seoul Olympic Game period.
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