Multi-level correlation analysis method for abnormal operating indexes of smart distribution network

Abstract

This article focuses on the interaction between multiple levels of smart distribution network operation, and designs a multi-level correlation analysis framework by considering several related factors, such as network structure, distributed power supply and energy storage access, voltage regulation and reactive power compensation, and three-phase load imbalance. Furthermore, the multi-level correlation analysis method and process of abnormal voltage, load rate and power factor of smart distribution network are proposed, and the multi-level correlation analysis of key operation indicators at each level is realized. It is found that there is coupling influence relationship at different levels of high, medium and low voltage of smart distribution network. This article accurately locates the causes of abnormal problems of key operation indicators and forms a targeted governance decision plan. The practice shows that this method can effectively ensure the safe, reliable and efficient operation of large-scale distributed power and energy storage connected to smart distribution network.

Keywords

• Smart distribution network
• Abnormal operating index
• Correlation analysis
• Judgment process
• Governance decision