Research Status and Prospect of Distribution Network Resilience

: In recent years, with the increase in natural disasters, their impact on the power system has been gradually increasing. As a power supply facility directly connects the power system and users, there are more and more studies on enhancing the resilience of the distribution network to deal with sudden disasters. To measure the distribution network’s ability to deal with sudden disasters, we introduced the concept of grid toughness in this study, starting from the whole process of power distribution network toughness enhancement. This was based on first the contrast outstanding toughness and reliability concept of particularity, a review of the existing research results on the concept of resilience, and a summary of the concept and significance of extracting the toughness grid. Then, the description method of the distribution network resilience, construction of a disaster model, construction of a distribution network model, and multi-stage resilience improvement measures before, during, and after a disaster were reviewed and analyzed. Finally, in view of the shortcomings of the existing research, a future development direction for resilient grid research was proposed.