Driven by the dual-carbon targets

urban distribution power systems (UDPSs) are transitioning from a dual balance of "safety-economy" to a triadic equilibrium of "safety-economy-low carbon". The frequent occurrence of extreme weather events has exposed traditional resilience enhancement planning strategies to a binary opposition dilemma between safety and low carbon

urgently requiring an electricity-carbon synergy framework to resolve the dual predicament of non-disaster carbon reduction and disaster-induced instability. This paper systematically constructs a theoretical framework for urban distribution system resilience enhancement planning under the electricity-carbon synergy perspective. Firstly

this paper elaborates on the basic concepts and transmission mechanisms of electricity-carbon synergy

clarifying the core objective of "non-disaster near-zero carbon economy and disaster-time low-carbon stability". Secondly

this paper analyzes the key technologies and methodological systems for resilience enhancement planning from following four dimensions: scenario construction

planning models

solution methods

and strategy verification. Finally

this paper identifies key challenges including multi-hazard coupling modeling

multi-time scale coordination mechanisms

and multi-uncertainty analysis

and puts forward the prospects in future development directions. The research shows that electricity-carbon synergistic resilience enhancement planning has become one of the important directions for high-quality transformation of urban distribution systems

providing theoretical supports and technical pathways for constructing safe

low-carbon

and economical new power systems.