兆瓦级碱性电解槽多变量数字孪生仿真系统构建  

CONSTRUCTION OF MULTIVARIATE DIGITAL TWIN SIMULATION SYSTEM FOR MEGAWATT-SCALE ALKALINE ELECTROLYZER

作　　者：梁涛 刘子聪 谭建鑫[2] 井延伟 吕梁年 Liang Tao;Liu Zicong;Tan Jianxin;Jing Yanwei;Lyu Liangnian(School of Artificial Intelligence,Hebei University of Technology,Tianjin 300401,China;Hebei Jiantou New Energy Co.,Ltd,,Shijiazhuang 050051,China;Goldwind Science&Technology Coltd,Beijing 102600,China)

机构地区：[1]河北工业大学人工智能与数据科学学院,天津300401 [2]河北建投新能源有限公司,石家庄050051 [3]金风科技股份有限公司,北京102600

出　　处：《太阳能学报》2024年第12期545-554,共10页Acta Energiae Solaris Sinica

基　　金：河北省科技支撑计划(19214501D,20314501D,F2021202022)。

摘　　要：碱性电解水制氢系统耦合性强、运行工况复杂,属于危险化工生产环境,因此难以开展可再生能源制氢宽功率波动测试等极端实验。以张家口崇礼制氢厂的1 MW碱性电解槽为研究对象,通过生产实验数据,分析温度、压力和碱液流量等对气体纯度和小室电压等参数的影响。首先对运行机理进行分析,对数据进行多元非线性拟合出经验公式,建立兆瓦级碱性电解槽的电压模型、法拉第效率模型、氧中氢浓度模型,并对气液分离等后处理系统建模;其次对模型结果进行理论分析与验证,通过模型分析得出制氢系统安全运行边界;最后将制氢系统的数学模型与三维模型相结合,实现制氢系统在虚拟空间中的映射,为研究可再生能源制氢宽功率波动提供先验平台。Alkaline electrolytic water hydrogen production system with strong coupling and complex operating conditions is a hazardous chemical production environment,so it is difficult to carry out extreme experiments such as wide power fluctuation test for renewable energy hydrogen production.In this paper,the 1 MW alkaline electrolyzer of Zhangjiakou Chongli hydrogen production plant is used as the research object,and the effects of variables such as temperature,pressure and alkali flow rate on parameters such as gas purity and cell voltage are analyzed by production experimental data.Firstly,the operating mechanism is analyzed,the data are fitted with multivariate nonlinearities to produce empirical equations,and the voltage model,Faraday efficiency model,and hydrogen concentration in oxygen model of the MW alkaline electrolyzer were established,and the post-treatment systems such as gas-liquid separation are modeled.Next,the model results are analyzed and verified theoretically,and the safe operation boundary of the hydrogen production system is derived from the model analysis.Finally,the mathematical model of the hydrogen production system is combined with the 3D model to realize the mapping of the hydrogen production system in the virtual space,which provides an a priori platform to study the wide power fluctuation of renewable energy hydrogen production.

关 键 词：碱性电解槽 数字孪生 制氢 宽功率波动 多变量 安全边界 

分 类 号：TK911[动力工程及工程热物理]