The Impact of Photovoltaic Distributed Generation Resources on the Voltage Profile of the Distribution Systems

Due to the increasing use of distributed generation resources,researches about technical effects of connecting these types of distributed systems are more and more necessary. In this paper,in a new approach, the effect of photovoltaic distributed generation source on the distribution system voltage profile, in contrast to the effect of wind turbine, will be discussed. First a short circuit is applied to one of the lines of a distributed test system as a transient error. Then photovoltaic source and the wind turbine are added to the distribution system,simulations show the bus voltage curves of some sample buses of the test system,comparing the two-state, absence and presence of distributed generation sources. Finally,it is clear that using the distributed generation,can improve the voltage profile in a large part of the distribution network and also the photovoltaic sources have more capability to improve the voltage profile of distribution systems than the wind turbines.

Keywords:

distributed generation , voltage profile , photovoltaic sourc