Research on Distributed Photovoltaic Grid Connection Control Strategy Based on Distribution Automation System

This study proposes a distributed photovoltaic grid-connection control strategy based on distribution automation systems, which calculates the regulation capabilities of multi-level adjustable resources through dynamic mapping relationships, achieving comprehensive power quality management within the region. The research analyzes overvoltage and harmonic issues and addresses them through group regulation and control strategies. This strategy has successfully integrated distributed photovoltaic systems into 103 distribution areas, effectively managing overvoltage and harmonic pollution, and ensuring the reliable and stable operation of the areas. In the future, more advanced photovoltaic consumption strategies will be explored to support the integration of large-scale distributed photovoltaics and intelligent regulation.