Abstract
Reliability and power quality have been increasingly important in recent years due to a number of black-out events occurring throughout the world. This paper presents a practical method of probabilistic reliability evaluation of Korea Power system by using the Probabilistic Reliability Assessment (PRA) program and Physical and Operational Margins (POM). The case study computes the Probabilistic Reliability Indices (PRI) of Korea Power system as applied PRA and POM. It takes a large number of contingency in load simulations and combines them with a practical method of characterizing the effect of the availabilities of generators, lines and transformers. The effectiveness and future works are illustrated by demonstrations of case study. The case studies of Korea power system are shown that these packages are effective in identifying possible weak points and root causes for likely reliability problems. The potential for these software packages is being explored further for assisting system operators with managing Korea power system.
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