Distributed Photovoltaic Power Stations Modeling and Analysis of Influence on Voltage

Due to clean and efficient characteristics, distributed photovoltaic (DPV) power stations have developed rapidly. A large number of DPV power stations are connected to the distribution network, which leads to many problems. This paper focuses on analyzing the impact of DPV power stations on the influence of distribution network voltage. In this paper, DPV power station model firstly is established, and then the influence mechanism of node voltage is studied after DPV power stations connected from the perspective of voltage variety. A detailed model of DPV power station and IEEE33 node model containing DPV power stations are built in PSCAD\EMTDC, and the influence of DPV on distribution network voltage is simulated and analyzed when DPV power stations are connected in different scenarios with different penetrations. The simulation results show that DPV power stations have a certain lifting effect on the node voltage of the distribution network, which lays the foundation for the further development of DPV.