A two-stage resilience planning for integrated electricity-gas energy system considering hydrogen refueling stations during typhoons

To reduce the loss of the integrated electricity-gas energy system (IEGS) during typhoons, this paper proposes a two-stage resilience planning method for the IEGS considering hydrogen refueling stations (HRSs). Monte Carlo and simultaneous backward scenario reduction methods are used to generate typical power distribution network (PDN) line fault scenarios, which are then input into the two-stage resilience planning model. The first stage solves the resilience enhancement investment decision problem. It decides the locations and capacities of HRSs and gas-fired distributed generations (DGs). The second stage solves the system operation problem to minimize the cost in all fault scenarios. It determines the power of fuel cells and gas-fired DGs, the load shedding, as well as the line connection status. The resilience planning scheme with the minimum sum of the investment and system operation cost can be obtained by coordinating two stages. Finally, the simulation is verified via the IEEE 33-node PDN coupled with the 7-node gas network using historical data from the 2023 super typhoon “Saola”. The results indicate that the proposed method can not only reduce the investment and system operation cost; but also reduce load shedding and improve the ability to restore power supply in fault scenarios, therefore enhancing IEGS's resilience.