Optimization Strategy of Energy Management System in Pelagic Islands Considering Hydrogen-Power Conversion Characteristic

In general, the pelagic clustering islands with diverse energy demands is difficult to achieve resource self-sustaining under the traditional energy supply mode. Aiming at the islands with electric and hydrogen energy demands, this paper introduces an inter-island energy-sharing strategy based on Electric and Hydrogen Vessels (EHV). Firstly, according to the energy transmission characteristics of EHV, the inter-island energy transmission model, and island energy balance model are established. Meanwhile, in the hydrogen-electric conversion part, refined models of hydrogen production by electrolytic water and fuel cells are adopted. On this basis, the optimization model is to minimize the equivalent annual cost of the operation and investment in the system. The simulation results show that compared with the traditional energy supply mode, the energy-sharing strategy will greatly reduce the energy consumption cost, improve the new energy consumption rate, and verify that the degree of refinement of the hydrogen-electricity conversion system model will have a great impact on the solution results.