Reliability cost/worth assessment of distribution systemsincorporating time-varying weather conditions and restoration resources

摘要

This paper presents a time-sequential simulation techniquenincorporating the effects of weather conditions and restorationnresources in reliability cost/worth evaluation of distribution systems.nTime-varying weight factors (TVWF) are introduced to represent theneffects on component failure rates and restoration times of weather andnavailable restoration resources. The average failure rate is combinednwith the TVWF to create time-varying failure rates (TVFRs) for eachncomponent. The average restoration time is combined with the TVWF toncreate time-varying restoration times (TVRTs). Studies conducted in antest distribution system show that the TVFR have large impacts on theninterruption costs of frequency-sensitive customers and slight effectsnon others. The TVRT have significant effects on the indices for all thencustomers. It is therefore important to consider TVRT in evaluatingnreliability cost/worth of network reinforcement