Abstract

Abstract Monte Carlo simulation techniques used in power system reliability evaluation can be categorized into sequential or non-sequential methods. The non-sequential method, though using less memory and CPU time, cannot directly provide frequency and duration indices. A state transition sampling technique is presented which can be used to estimate the actual frequency index without requiring an additional enumeration procedure. This approach does not involve sampling component up and down cycles and storing chronological information on the system state, as the next system state is obtained by allowing a component to undergo transitions from its present state. The state transition sampling approach has been compared with an analytical method and a non-sequential technique, and the results from a test system are presented for all three methods.

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