Voltage control strategy of low voltage distribution network based on cloud edge - end collaboration

In this paper, a voltage control strategy of low-voltage distribution network is designed based on cloud edge and end collaboration based on the development trend of a large number of distributed PV connected to low-voltage distribution network. Firstly, the hierarchical control of voltage regulating equipment in distribution network is proposed, and the hierarchical control communication configuration and control architecture are designed. Secondly, based on the local control and voltage regulation of photovoltaic inverter, the sagging voltage regulation strategy is proposed, and the residual capacity of photovoltaic is used to output reactive power for voltage regulation. Finally, based on the centralized control and voltage regulation of the capacitor banks in the distribution network, a reconfiguration strategy with capacitors based on genetic algorithm is proposed. Hierarchical regulation is carried out for voltage regulating equipment in distribution network through cloud edge cooperation, and the voltage is kept stable within the normal range through mutual contact between intelligent voltage regulating equipment.