储能科学与技术 ›› 2021, Vol. 10 ›› Issue (6): 2039-2045.doi: 10.19799/j.cnki.2095-4239.2021.0100

• 氢能与燃料电池专刊 • 上一篇    下一篇

整体煤气化固体氧化物燃料电池并网测试系统设计

李萍萍1(), 陈姗姗2, 赵璐璐1, 史明亮2, 黄岩1, 李初福1()   

  1. 1.北京低碳清洁能源研究院,北京 102209
    2.国家能源集团新能源有限责任公司,北京 100007
  • 收稿日期:2021-03-15 修回日期:2021-05-15 出版日期:2021-11-05 发布日期:2021-11-03
  • 作者简介:李萍萍(1993—),女,工程师,研究方向为燃料电池系统模拟、工艺集成与优化等,E-mail:pingping.li.d@chnenergy.com.cn|李初福,高级工程师,研究方向为IGFC系统集成与示范,E-mail:chufu.li@chnenergy.com.cn
  • 基金资助:
    国家重点研发计划项目(2017YFB0601900)

Test design of integrated gasification solid oxide fuel cell IG-SOFC grid-connection technology

Pingping LI1(), Shanshan CHEN2, Lulu ZHAO1, Mingliang SHI2, Yan HUANG1, Chufu LI1()   

  1. 1.The National Institute of Clean and Low Carbon Energy, Beijing 102209, China
    2.China Energy New Energy Company, Beijing 100007, China
  • Received:2021-03-15 Revised:2021-05-15 Online:2021-11-05 Published:2021-11-03

摘要:

整体煤气化固体氧化物燃料电池(integrated gasification solid oxide fuel cellI,IG-SOFC)发电系统,利用煤气化合成气作为SOFC燃料,可以实现煤发电的近零排放,是一种非常有前景的清洁煤电技术,尤其契合我国以煤为主的资源秉性。提出一种IG-SOFC并网发电测试系统设计方案,搭建了可实现“并网测试模式”及“并网发电模式”实时切换的SOFC并网发电系统测试平台。基于自主研发的5 kW级SOFC堆塔模块,在煤制合成气作为燃料的条件下进行了实验测试,以验证系统设计方案的可行性和有效性。根据实验测试结果,SOFC堆塔发电功率达到4.5 kW时,并网功率为4.25 kW,堆塔电效率55.1%,发电系统电效率为52.0%,逆变效率约为94.5%。最后,通过“并网测试”模式下168 h长周期测试,验证了系统长周期运行的稳定性。

关键词: 整体煤气化固体氧化物燃料电池, 发电系统, 电力并网, 测试平台, 煤制合成气

Abstract:

Integrated gasification solid oxide fuel cell (IG-SOFC) power generation system, which uses feed gas obtained from coal gasification (syngas) to achieve near-zero emissions, is a promising clean-coal power generation technology, especially given China's coal-based resource temperament. The paper firstly proposes a test design scheme of the IG-SOFC grid-connected power generation system. Then a SOFC grid-connected power generation test platform is built, which could be applied to the operation mode of both "grid-connected test mode" and "grid-connected power generation mode." The feasibility of the design plan is then validated using the experimental results of a self-developed 5 kW SOFC tower module with syngas as the feed gas. The results show that when the SOFC tower module's generation power reaches 4.5 kW, the grid-connected generation power is 4.25 kW, the power generation efficiency of the stack module is 55.1%, the power generation efficiency of the system is 52.0%, and the inversion efficiency is approximately 94.5%. Finally, the long-period performance stability of the system is verified by the 168 h long-cycle test under "grid-connected test mode."

Key words: integrated gasification solid oxide fuel cell, power generation system, grid- connection, test platform, syngas

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