Volume 49

Optimal Dispatching for Hybrid Hydrogen Production System Considering Hydrogen Demand Pengcheng Zhu, Masahiro Mae, Matsuhashi Ryuji

Abstract

The penetration rate of renewable energy sources (RES) in hydrogen production systems has continued to increase in recent years. However, the intermittent nature of these sources presents significant operational challenges, especially for the electrolyzers. One possible solution is using grid electricity to complement the RES power supply with the battery to smooth the fluctuations. In this paper, an optimal dispatching scheme is proposed for hydrogen production plants integrating the battery. With the proposed dispatching scheme, a hydrogen production plant can reduce the total cost through participation in the wholesale electricity market while satisfying the hydrogen demand. Simulation based on actual data from Kyushu is conducted to evaluate the performance of the proposed optimal dispatching scheme. Compared with the normal operation method, the proposed scheme reduces the total cost by 12.6% for hydrogen production plants.

Keywords hydrogen production, water electrolysis, renewable energy, optimal dispatching, battery