Modeling and Simulation of Hydrogen Energy Storage System for Power-to-gas and Gas-to-power Systems

• DOI: 10.35833/mpce.2021.000705
• Publication Date: 2023-05-29T01:49:17Z
• Authors: Jianlin Li; Guanghui Li; Suliang Ma; Zhonghao Liang; Yaxin Li; Wei Zeng
• Keywords: Power-to-Gas

By collecting and organizing historical data typical model characteristics, hydrogen energy storage system (HESS)-based power-to-gas (P2G) gas-to-power systems are developed using Simulink. The transfer mechanisms numerical modeling methods of the proposed studied in detail. integrated HESS covers following components: alkaline electrolyzer (AE), high-pressure tank with compressor (CM & H2 tank), proton-exchange membrane fuel cell (PEMFC) stack. unit models established based on U-I curves equivalent circuit models, which used to analyze operating characteristics charging/discharging behaviors a AE, an ideal CM tank, PEMFC validities these simulated verified MicroGrid system, is equipped wind power generation photovoltaic auxiliary battery (BESS) unit. Simulation results MATLAB/Simulink show that stack, stack integration can operate different cases. testing simulation under working conditions, production flow, voltage, state charge (SOC) BESS, pressure (SOHP) HESS, flow paths analyzed. consistent expectations, showing effectively absorb power. As generations increase, current increases, thereby increasing amount surplus responds faster than traditional BESS microgrid, providing solid theoretical foundation for later wind-photovoltaic-HESS-BESS integration.