Abstract
A utility's bulk power system consists of generation and transmission facilities. Bulk power system reliability is concerned with the ability to supply customers with the amount of power demanded when they require it. This paper describes the two major categories of bulk power system reliability, i.e. adequacy and security. It describes a scheme of measuring actual reliability, comparing with target levels, and predicting reliability. The measurement scheme is discussed in detail, including the unreliability events to be measured, the location of measurement, the performance indices used, and the ways to extend the measurement system. In addition, the paper outlines the prediction methods used in analyzing generation, transmission, and composite system reliability. It concludes with a discussion on the comparison of measurement indices with predictive indices.
Published Version
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