摘要
压缩空气储能系统被认为是最具发展前景的大规模电力储能技术之一,本文采用㶲与经济学分析相结合的方法,建立了压缩空气储能系统热经济性分析模型。针对先进蓄热式压缩空气储能系统服务于执行峰谷分时电价的电力系统运行情景,开展了热经济分析。结果表明,该系统热经济性是可行的;能量成本在总成本中占绝大多数,非能量成本中,储气子系统占比最大,其次为压缩子系统,最后为膨胀子系统,其中压缩子系统㶲损率最高;压缩子系统优化带来的系统输出㶲单价降低最为明显,其次为储气和膨胀子系统,故系统从热经济学角度进行优化,应首先集中在对压缩机的优化上。本文的研究将为压缩空气储能系统的研究和工程应用提供技术经济决策的参考和依据。
Compressed-air energy storage(CAES)is one of the most promising large-scale electrical energy storage technologies.In this study,the method of exergy and economic analysis was adopted,a thermo-economic model for CAES systems was developed.The model was employed to analyze an advanced regenerative CAES system operating in a power system with a time-of-use electricity price.The results show that the system is thermo economically feasible.Energy cost accounts for a greater portion of the total cost.For the non energy cost,the gas storage subsystem accounts for the highest proportion,followed by the compression subsystem.Optimizing the compression subsystem significantly reduced the exergy price of the system output,followed by the storage and expansion subsystems.Therefore,to optimize the system,the thermoeconomics of the compressor should first be considered.This study provides technical and economic decision-making reference and basis for research and engineering applications of CAES systems.
作者
胡珊
刘畅
徐玉杰
陈海生
郭欢
HU Shan;LIU Chang;XU Yujie;CHEN Haisheng;GUO Huan(Institute of Engineering Thermophysics,Chinese Academy of Science,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Nanjing Institute of Future Energy System,Nanjing 211135,Jiangsu,China;National Energy Large Scale Physical Energy Storage Technologies R&D Center of Bijie High-tech Industrial Development Zone,Bijie 551712,Guizhou,China)
出处
《储能科学与技术》
CAS
CSCD
北大核心
2021年第5期1607-1613,共7页
Energy Storage Science and Technology
基金
国家杰出青年科学基金项目(51925604)
中国科学院国际合作局国际伙伴计划项目(182211KYSB20170029)
贵州省科技计划项目(黔科合基础[2017]1160号)。
关键词
压缩空气储能
热经济学模型
㶲分析
compressed air energy storage
thermal-economic model
exergy analysis
