Research on Multi-scenario Optimization Scheduling Strategy of Electrolysis-Hydrogen Coupling System for New Power Systems

Hydrogen energy is an important component of future energy systems, and will play an important role in the construction of a new power system in China. Electrolysis-hydrogen conversion has the characteristics of high operational flexibility and multiple conversion degrees of freedom. Therefore, breakthroughs in electro-hydrogen coordination technology are urgently needed. In this paper, a refined modeling of the hydrogen energy system and power system sub-modules was carried out based on the time-series production simulation method. An operation optimization model of the electrolysis-hydrogen coupling system was established, and optimization scheduling strategies for the electrolysis-hydrogen coupling system were proposed for daily and stress scenarios. Finally, a simulation calculation was conducted using an actual power grid in southern China as an example. The results verified the rationality of the time-series simulation model proposed in this paper and the effectiveness of the scheduling strategy. This study has important guiding significance for optimizing the operation of the electro-hydrogen coupling system.