Optimal Capacity Configuration of Hybrid Electrolytic Cells Power to Hydrogen(P2H) System in Distribution System

Hydrogen energy has an important role in superconducting energy storage cooling and materials synthesis. As the power-to-hydrogen (P2H) loads, alkaline electrolytic cells (AEC) and proton exchange membrane electrolytic cells (PEMEC) have different technical characteristics (TCs). This paper proposes an optimal capacity configuration model for the hybrid electrolytic cells P2H system in distribution system (DS). Firstly, a unified operating model for the electrolytic cell is established. Secondly, the optimal capacity configuration model is proposed with the objective function to minimize the total cost of the DS, including the numbers and capacity configuration of the hybrid electrolytic cells. Finally, the proposed model is verified by using the modified IEEE 33-bus system. The results show the total cost of the proposed model reduced by 4% and 11%, the hydrogen production power increase of 0.26% and 0.52% compared to the AEC and PEMEC configurations only. The study provides a reference for the configuration of large-scale hybrid electrolytic cells in power system.