基于因果序图的氢能一体化电站运行过程建模及能量流控制策略  

Operation Process Modeling and Energy Flow Control Strategy of Integrated Hydrogen Energy Power Station Based on Causal Ordering Graph

作　　者：马利波 赵洪山 余洋 潘思潮 Ma Libo;Zhao Hongshan;Yu Yang;Pan Sichao(State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Baoding 071003,China)

机构地区：[1]新能源电力系统全国重点实验室(华北电力大学),保定071003

出　　处：《电工技术学报》2024年第16期5220-5237,共18页Transactions of China Electrotechnical Society

基　　金：国家重点研发计划(2018YFE0122200);国家自然科学基金面上项目(52077078)资助。

摘　　要：为解决大规模的“间歇性电源”接入造成的电能供需不平衡的问题,该文提出氢能一体化电站及其运行过程中电-氢-电能量流控制策略。首先,根据一体化电站电-氢-电能量转换特点,基于因果序图(COG)建立了面向控制的制储氢发电一体化电站运行动态模型,该模型能够清晰地反映一体化电站不同物理量之间的关系,实现一体化电站运行过程的表征;其次,在所建模型基础上基于自然因果关系原理设计了一体化电站运行过程的功率流和氢气流控制策略,该策略对于刚性关系过程采用反转模型控制,减少了误差反馈耗时,增强了控制器性能;最后,在基于RT-Lab的硬件在环仿真平台上进行了测试,分析了一体化电站不同物理量之间的变化关系。与比例-积分-微分(PID)控制和自抗扰控制(ADRC)方法的对比结果表明,所提控制策略在响应速度、收敛精度和运行效率上优于传统方法,可以更有效地实现氢能一体化电站运行过程的能量流管理。Hydrogen energy storage technology is characterized by cleanliness,no self-discharge,and high energy density,making it a highly promising energy storage technology.When the grid has surplus power,hydrogen energy storage absorbs the excess power;when the grid power is insufficient,hydrogen energy is converted into electricity to supply power to users.However,currently,most research on hydrogen energy storage is still in the stage of business model and economic feasibility studies,lacking operation principles and modeling research.To solve these problems,we propose an integrated hydrogen energy power station(IHEPS)that integrates three parts:hydrogen production,hydrogen storage,and fuel cell power generation.Based on causal ordering graph(COG),we establish the operation process model and energy flow control strategy of IHEPS.The proposed model and control strategy not only clearly represent the operation process of the IHEPS but also,by using model inversion control for rigid relationships,reduce error feedback time and enhance controller performance,thus better realizing the energy flow management of the IHEPS.Firstly,the composition structure,working principles,and control system configuration of the box-type IHEPS are proposed.Then,according to the characteristics of IHEPS electricity-hydrogen-electricity energy conversion,a control-oriented operating dynamic model of hydrogen production,storage and power generation integrated power station is established based on the COG.This model can clearly reflect the relationships between different physical quantities of the IHEPS.Next,based on the established model and the principle of natural causality,a power and hydrogen flow control strategy for the operation process of the IHEPS is designed.This strategy adopts model inversion control for processes with rigid relationships to reduce error feedback time and enhance controller performance.Finally,tests are conducted on the RT-Lab hardware-in-the-loop simulation platform to analyze the relationships between different ph

关 键 词：氢能一体化电站 能量流控制 因果序图 硬件在环测试 

分 类 号：TM615[电气工程—电力系统及自动化]