A scenario driven reliability assessment approach for microgrids

Reliability of the distribution power system is often examined through probability analysis on an assumed loading scenario, primarily peak load. With varying system characteristics, such as loading level, topology, generation dispatching etc., it is difficult to evaluate real time reliability performance, due to a lack of convenient tools. This paper presents a scenario based reliability assessment approach for microgrids along with a demonstration on a simplified distribution power system model of the Miramar Military Base, using a microgrid simulation tool (hereby referred to as the `MG tool´ [1]). This approach can be used to calculate impacts of microgrid operating strategies on overall reliability. The MG tool also uses power flow results to obtain actual cost of operation.