Design and Implementation of Collaborative Autonomous System for Transformer Microgrids

In the environment of “dual carbon” and new power system, the proportion of distributed photovoltaic construction and access continues to increase. To solve the problems of reverse heavy overload, lack of consumption means, poor power quality, three-phase imbalance and other problems in rural high permeability distributed photovoltaic substation areas, a rural substation level microgrid model including low-voltage distributed Solar inverter, energy storage devices, and residential loads was first established, In terms of software, a main station architecture and a photovoltaic autonomous management APP architecture were designed, and a low-voltage distributed photovoltaic output regulation method for residents’ tolerance was designed to achieve local collection of photovoltaic information, local perception of status, and local decision-making and disposal in the photovoltaic area. The platform has undergone technical verification in the Zhangjiakou area, with good results and high promotion value.