极端自然灾害下新型配电系统韧性提升技术综述与展望OA

Extreme natural disasters,characterized by low probability and high loss,pose a severe threat to the secure and reliable operation of new distribution systems.Therefore,enhancing the resilience of new distribution systems against such events is urgently needed.With the evolution of new distribution systems,resilience enhancement technologies have expanded from temporal dimension coordination to physical dimension and resource dimension coordination.This paper first elaborates on the resilience enhancement framework for new distribution systems,encompassing four stages of resilience perception,resilience modeling,resilience assessment,and resilience enhancement.Subsequently,resilience enhancement technologies are discussed in detail from the temporal dimension,including pre-disaster prevention,disaster response,and post-disaster self-healing.This paper summarizes resilience enhancement technologies from the physical dimension,including main grid-distribution network-microgrid coordination,electricity-gas-heat multi-energy coordination,and cyber-physical system coordination.From the resource dimension,resilience enhancement technologies are analyzed involving source-grid-load coordination,flexible interconnection,and mobile energy storage support.Finally,key issues that urgently need to be studied on resilience enhancement technologies for new distribution systems are prospected.