AUTHOR=Ma Shun , Mei Shiyan , Yu Liwei 

TITLE=Research on multi-timescale operation optimization of a distributed electro-hydrogen coupling system considering grid interaction

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 11 - 2023

YEAR=2023

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2023.1251231

DOI=10.3389/fenrg.2023.1251231

ISSN=2296-598X

ABSTRACT=Against the backdrop of increasingly prominent environmental issues and energy supply-demand balance, the optimization of multi time scale operation of distributed electric hydrogen coupling systems has become a research focus. Based on this, this paper optimizes the multi time scale operation of a distributed electric hydrogen coupling system that takes into account grid interaction. Firstly, design a distributed electro hydrogen coupling system based on the system framework and system unit operation strategy. Then, considering the uncertainty and response characteristics of wind generator set and load demand in the distributed electricity hydrogen system, a multiple uncertainty deterministic system of the distributed electricity hydrogen coupling system is constructed. Furthermore, based on the response characteristics of the distributed electro hydrogen coupling system, a three stage multi time scale operation optimization model for the electro hydrogen coupling system is constructed, which includes "day ahead-day in-real time". Finally, taking a coupled system as an example for empirical analysis, the empirical results show that: 1) The multiple uncertainties of source and load considered in this paper can reduce the total scheduling cost by 12.55% compared to deterministic scenarios; 2) The "day before day in real-time" multi time scale strategy proposed in this article can improve the clean energy consumption rate by 13.50% compared to the "day ahead- day in -real time" time scale; 3) The scheduling time scale model constructed in this article can reduce device adjustments by 8.99%.