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Power and gas systems are increasingly interdependent due to development ofnatural gas-fired generation and gas industry electrification. Recent energycrises have highlighted how this characteristic affects their response todisasters and driven the need for improving resilience of these interdependentsystems. In this paper, we focus on the interdependent electric power andnatural gas distribution systems (IENDS) and propose a comprehensive "supply -demand - repair" strategy to help the IENDS tide over the emergency periodsafter disasters by coordinating various emergency resources. Specifically, weinvestigate and address fuel supply issue of single- and dual-fuel generatorsby modeling their fuel delivery process involving fuel tankers. On the demandside, we propose a zonewise approach to group customers with intertwined energysupplies, thereby realizing an integrated dispatch of power and gas demandresponses to alleviate the operational stresses on the IENDS. Furthermore,repair process for damaged facilities is modeled in a flexible form,considering varying efficiency and allowing for independent and collaboratedrepair works. This strategy is formulated into a mixed-integer second-ordercone programming model to deploy various resources in a coordinated andorganized manner. Case studies are conducted to validate the effectiveness ofthe proposed strategy.

Coordinating Supply, Demand, and Repair Resources for Optimal  Postdisaster Operation of Interdependent Electric Power and Natural Gas  Distribution Systems