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

作　　者：Jianlin Li Guanghui Li Suliang Ma Zhonghao Liang Yaxin Li Wei Zeng 

机构地区：[1]School of Electrical and Control Engineering,North China University of Technology,Beijing 100144,China [2]State Grid Jiangxi Electric Power Co.,Ltd.Electric Power Research Institute,Nanchang 330096,China

出　　处：《Journal of Modern Power Systems and Clean Energy》2023年第3期885-895,共11页现代电力系统与清洁能源学报（英文）

基　　金：supported by the State Grid Jiangxi Electric Power Co.,Ltd.(No.52182020008K);Beijing Millions of Talents Funding Project(No.2020A30).

摘　　要：By collecting and organizing historical data and typical model characteristics,hydrogen energy storage system(HESS)-based power-to-gas(P2G)and gas-to-power systems are developed using Simulink.The energy transfer mechanisms and numerical modeling methods of the proposed systems are studied in detail.The proposed integrated HESS model covers the following system components:alkaline electrolyzer(AE),highpressure hydrogen storage tank with compressor(CM&H_(2) tank),and proton-exchange membrane fuel cell(PEMFC)stack.The unit models in the HESS are established based on typical U-I curves and equivalent circuit models,which are used to analyze the operating characteristics and charging/discharging behaviors of a typical AE,an ideal CM&H_(2) tank,and a PEMFC stack.The validities of these models are simulated and verified in the MicroGrid system,which is equipped with a wind power generation system,a photovoltaic power generation system,and an auxiliary battery energy storage system(BESS)unit.Simulation results in MATLAB/Simulink show that electrolyzer stack,fuel cell stack and system integration model can operate in different cases.By testing the simulation results of the HESS under different working conditions,the hydrogen production flow,stack voltage,state of charge(SOC)of the BESS,state of hydrogen pressure(SOHP)of the HESS,and HESS energy flow paths are analyzed.The simulation results are consistent with expectations,showing that the integrated HESS model can effectively absorb wind and photovoltaic power.As the wind and photovoltaic power generations increase,the HESS current increases,thereby increasing the amount of hydrogen production to absorb the surplus power.The results show that the HESS responds faster than the traditional BESS in the microgrid,providing a solid theoretical foundation for later wind-photovoltaic-HESS-BESS integration.

关 键 词：Hydrogen energy storage system(HESS) green electricity hydrogen production COMPRESSOR hydrogen storage tank proton-exchange membrane fuel cell(PEMFC) wind-photovoltaic-HESS-BESS integration 

分 类 号：TK91[动力工程及工程热物理] TM911.4[电气工程—电力电子与电力传动]