The study of reactive power control strategies of PV plant in PEA distribution system

Due to the significantly increasing of Photovoltaic generations in distribution system, many utilities have reported about the adversely impact of high penetration PV on voltage variations. The various reactive power control strategies have been proposed to solve this issue. The aim of this paper is to study the performance of the implementation of three reactive power control strategies i.e. cosφ, cosφ(P) and Q(U) in Provincial Electricity Authority (PEA) distribution system. The large-scale PV Plant in this study built by DIgSILENT PowerFactory is used to perform simulation. The simulations are shown the voltage improvement and feeder losses on the different reactive power control strategies, by comparing with the base case (PV is generating the maximum active power and not injecting reactive power). The results are expected to use as a guideline for further development of PEA grid code.