Two-stage planning to increase the resilience of energy distribution networks using energy hubs for crisis management

Hub Energy systems meet the needs of customers in critical situations by coordinating the use of different infrastructures, resulting in improved system resilience, reduced losses, and reduced operational costs. Due to the increase in the construction of energy hub systems in distribution networks, the issue of the optimal design of energy hubs has received much attention. Considering this issue, this paper presents a new two-stage optimization model to improve the resilience of distribution systems against storms. We formulate the proposed framework as a two-level planning process, taking readiness decisions in the first stage and optimizing operational variables in the second stage to enhance system resilience. We investigate the mutual interactions between electricity and thermal energy using an integrated electricity and gas model, and propose a computational method to model the worst-case scenarios of gas and electricity flow on an integrated IEEE 69-bus network.