As an effective supplement to the centralized fossil
fuel based traditional generation, Distributed Generation (DG)
has become an effective alternative choice and has been rapidly
increasing since past few years due to growing demand for
electricity and the new policies of governing bodies for usage of
green energy. In overall power system, distribution systems are
more vulnerable to faults and reliability aspects of such systems
becomes an important issue. With higher penetration of DG into
the distribution network, it will be necessary to study the impact of
such generation on the various aspects of distribution system.
Thus, increase in rate of penetration DGs into the distribution
system on one side and increased faults in distribution network on
another side, will make the study of impact of DG integration on
distribution system reliability an interesting topic of research. The
present work focuses on evaluation of impacts of integration of
such DGs on reliability of local distribution network, typically in
an urban scenario By using the simulation method using
DIgSILENT PowerFactory software, the impacts of integration of
DG in terms of enhancement in distribution system reliability
indices and reduction in system losses for different scenarios are
studied and presented in this paper. Based on the simulation
results obtained and after analysis of the distribution system,
overall results are summarized by focusing on the installation of
suitable capacity of DG and the location of DG which are
important factors affecting the system losses and system reliability
indices.