Research on Voltage Control of Distribution Network Based on Photovoltaic Inverter

Aiming at the problem of voltage over-limit caused by large-scale photovoltaic access to distribution network, this paper proposes a voltage optimization model of distribution network based on photovoltaic inverter, and uses the ocean predator algorithm to solve it. Firstly, the mathematical model of distribution network considering the active power reduction and voltage deviation of photovoltaic is established. Then, the principle of ocean predator algorithm is introduced. Finally, the effectiveness of the proposed method is verified by simulation experiments on the standard IEEE33 node system. The results show that this method can significantly improve the voltage distribution of the distribution network, improve the voltage stability, and reduce the amount of photovoltaic active power reduction, which provides a new effective way for the voltage control of large-scale photovoltaic access to the distribution network.