Abstract
Reliability analysis is believed to be one of the key features in power system design and planning. Reliability defines the ability of a system or component to function under stated conditions for a stated period of time. With the promotion of the concept of smart grid in the past few years, more and more Distributed Generation (DG) units are being introduced into the power system, which in turn may affect the operation of the networks. DGs play an important part in many ways, the introduction of DG can significantly impact the flow of voltage and power conditions of the system. There are many kinds of DG units classified into two technologies: conventional and renewables. The main purpose of this project is to study and analyze power system reliability due to the engagement of DG units in a distribution system. A reliability analysis technique for a large scale system, with respect to substation, reconfigurable, and electrical distribution is presented. The analysis will take into account the average failure rate and the annual outage duration of the distribution system with and without distributed generation. Also the placement of distributed generation and its effects on the reliability of the system is investigated and analyzed.