Impact and Analysis of the Large-scale Distributed Photovoltaic Integration on Regional Distribution Networks

Reactive power balance in the power system is an important task in the planning and design of the power system. Its purpose is to determine the configuration and type of reactive power compensation devices in the power system, and to maintain the voltage level, power quality, and other quality factors of each node in the power grid within a reasonable range under various operating modes. This article selects areas with high permeability of distributed power sources and takes reactive power balance as the starting point to conduct research on the distribution network after the integration of distributed power sources through simulation analysis, instance verification, and other methods. The relevant results confirm the feasibility of the research and the correctness of the conclusions, providing technical support for the subsequent implementation of distributed power supply integration work in the entire county or district.