Research on Voltage Control Strategy of Distribution Network under High Proportion of Distributed Photovoltaic Access

The high proportion of distributed photovoltaic grid connection has a significant impact on the medium and low voltage distribution network, especially when the photovoltaic penetration rate is high, it is easy to have problems such as voltage violation and fluctuation, which seriously affects the safe and stable operation of the distribution network. This paper analyzes the voltage control strategy of the traditional distribution network, and on this basis, a comprehensive voltage control method based on power factor, power and voltage based on photovoltaic inverter is proposed. The simulation results show that the method has a good voltage control effect, and can improve the safety of distribution network with high proportion of distributed photovoltaic.