A probabilistic technique for operating reserve assessment using system operating states

A probabilistic approach is presented in this paper which can be used to evaluate the degree of system well-being in operating reserve assessment of a generation system. The overall well-being of the generation system is identified as being either healthy, marginal or at risk. In this approach to operating reserve assessment, generating units are first committed to the system to satisfy the unit commitment criterion. After determining the number of committed units, the degree of system well-being associated with the responding capability of the committed units is determined. These concepts are illustrated in this paper by application to an educational test system