Abstract
The importance and necessity of conducting studies on grid reliability evaluation have been increasingly important in recent years due to the number of black-out events occurring through in the world. Quantity evaluation of transmission system reliability is very important in a competitive electricity environment. The reason is that the successful operation of electric power under a deregulated electricity market depends on transmission system reliability management. Also in Korea it takes places. This paper presents the key problems of available features and operation modes of the transmission reliability evaluation for large-scale systems (TRELSS) Version 6.2, a program made in EPRI, for assessing reliability indices of a Korea electric power corporation (KEPCO) system as the first step for applying to actual KEPCO system in the near future. The package accesses not only bulk but also buses indices for reliability evaluation of composite powers system. The characteristics of the TRELSS program are illustrated by the case studies using the KEPCO system.
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