Resiliency-Oriented Planning of Smart City Energy Infrastructure, Considering Energy Hubs, Based on Prioritized Critical Loads

Mitigating the impact of high-impact disasters requires increasing the system resilience as an essential measure. The energy hub (EH), as an efficient framework of energy systems integration, could provide significant flexibility and robustness for energy systems in facing disasters. This manuscript proposes a resiliency-oriented planning model for smart city energy infrastructure, modeled as interconnected EHs. The proposed model aims at minimizing the customer interruption cost (CIC) and the cost of energy not supplied (CENS), to prioritize critical loads restoration. This study analyzes the effectiveness of the proposed model when the connection between the electricity distribution grid and the upstream grid is interrupted due to unpredicted conditions. The proposed MILP model is applied to the 33-bus distribution test system, to demonstrate the performance of the proposed framework. The numerical results demonstrate the effectiveness of the EHs-based planning model in realizing a resilient smart city energy infrastructure.