Analysis of Radial Distribution Test Feeders in Presence of Solar Photovoltaic Systems Using PowerFactory

In the last few years, there has been a rapid increase in the installation of solar photovoltaic (SPV) systems and their integration into existing low voltage (LV) distribution networks. It is important to evaluate the effects of integrating SPV systems for identifying any possible issues which may pose threats to the reliability of the power system beforehand. For the study of radial distribution feeders, a variety of computer programmes are available. This paper presents an analysis of radial low voltage distribution test feeders (modified IEEE 13 - bus system) in presence of solar photovoltaic systems using DIgSILENT PowerFactory. The results of load flow analysis suggest that significant variations in the voltage occur at various buses which may lead to incidences of over-voltage in the system as SPV penetration increases).