AUTHOR=Zhang Bolin , Shao Chong , Li Chunhua , Guo Tingzhe , Lei Aihu , Guan Xinyu , Zu Longyu 

TITLE=Optimal scheduling of an electric–hydrogen-integrated energy system considering virtual energy storage

JOURNAL=Frontiers in Energy Research

VOLUME=Volume 12 - 2024

YEAR=2024

URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2024.1359123

DOI=10.3389/fenrg.2024.1359123

ISSN=2296-598X

ABSTRACT=In this paper, a two-layer optimization approach is proposed to facilitate multi-energy comple-mentarity and coupling and to optimize the system configuration in an electric-hydrogen-integrated energy system. Firstly, an electric-hydrogen-integrated energy system with virtual energy storage is proposed to reduce the cost of physical energy storage equipment. Secondly, a twolayer optimal allocation method is proposed under a multi-timescale strategy to examine the comprehensive evaluation index of environmental protection and economy. The upper layer uses the NSGA-II multi-objective optimization method for system capacity allocation, and the lower layer performs economic dispatch at the lowest cost. Ultimately, the results of the equipment capacity allocation of the electric-hydrogen integrated energy system that satisfies the re-liability constraint interval and the scheduling results of the equipment within a day are output. The results show that the electric-hydrogen-integrated energy system with multiple energy equipment coupling not only improves the utilization of new energy units but also reduces fossil energy use and improves the system's reliability.