1 The Impact of Distributed Energy Resources on the Reliability of Smart Distribution System

Reliability of power systems is a key aspect in modern power system planning, design, and operation. In many countries, electrical utilities are required to report annually the expected network performance. That report quantifies the expected reliability indices during the entire year such as the interruption frequency and the interruption duration. Various researches developed to assess the reliability of the power system. Furthermore, due to the widely growth of distributed energy resources (DER) that involves distributed generation (DG) and demand side management (DSM) in the electrical power system, investigating their impact on the system reliability becomes an attractive area for research. This paper discusses the influence of DG and DSM on a smart distribution system (SDS) by executing different case studies including; connection of DG to network at several locations and utilizing different DSM techniques. This research aims to quantify the reliability indices to evaluate the system reliability in different cases.