RESEARCH ON COORDINATED CONTROL METHOD FOR SOEC MULTI-MODE GREEN ELECTRICITY HYDROGEN PRODUCTION INTEGRATED SYSTEM

He Yaqing; Wang Weiqing; Zhang Xinyan; Li Jiarong; Zhao Chenhuan; Wang Haiyun

doi:10.19912/j.0254-0096.tynxb.2023-1484

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (1) : 363-372. DOI: 10.19912/j.0254-0096.tynxb.2023-1484

RESEARCH ON COORDINATED CONTROL METHOD FOR SOEC MULTI-MODE GREEN ELECTRICITY HYDROGEN PRODUCTION INTEGRATED SYSTEM

He Yaqing¹, Wang Weiqing¹, Zhang Xinyan¹, Li Jiarong², Zhao Chenhuan³, Wang Haiyun¹

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Abstract

In view of the characteristics of high temperature solid oxide electrolyzer cell （SOEC） hydrogen production,such as energy conversion efficiency,remarkable reaction rate etc., firstly a multi-mode green hydrogen integrated operation model is built to analyze the model's start-stop and hydrogen production characteristics,while economic and operational constraints is imposed on it. Secondly,considering the random and intermittent factors of wind and solar power, as well as the nonlinear characteristics of modules,a robust and adjustable collaborative optimization method is proposed that independently controls each module and meets the load requirements. By establishing the wind and solar uncertainty set,the piecewise linearization of the modules,and introducing a robust and adjustable collaborative optimization method, the hydrogen production efficiency,operational flexibility,and overall economic benefits of the system were improved. Lastly, a flexible start-stop operation example analysis was conducted on 5 integrated modules on the basis of meeting the load distribution work,and 25 integrated modules were connected to the distribution network to participate in power grid scheduling. The results show that a reasonable combination model can not only optimize the flexibility and stability of the system's start-stop operation under variable load operation conditions. Moreover, it can improve the consumption of new energy and the adaptability in grid-connection,which has obvious economic efficiency and strategic significance.

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solid oxide electrolysis cell（SOEC） / hydrogen production / optimization / integrated modules / consumption / economic efficiency

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He Yaqing, Wang Weiqing, Zhang Xinyan, Li Jiarong, Zhao Chenhuan, Wang Haiyun. RESEARCH ON COORDINATED CONTROL METHOD FOR SOEC MULTI-MODE GREEN ELECTRICITY HYDROGEN PRODUCTION INTEGRATED SYSTEM[J]. Acta Energiae Solaris Sinica. 2025, 46(1): 363-372 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1484

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