摘要
分布式地面压缩空气储能电站采用管道储气,具有便捷、灵活性和可全面调节的优势,不仅摆脱了传统盐穴或人工硐室储气对地质条件的依赖,还能充分满足新型电力系统建设的储能需求。基于AMESim软件,对地面压缩空气储能电站在24 h运行周期内的热力学特性(包括储气室温度、压力及换热功率)和系统电-电转换效率进行仿真分析,研究不同环境温度和保温层厚度对上述参数的影响。当储气室不采取保温措施时,随着环境温度升高,系统电-电转化效率从59.33%增至60.06%;而在理想绝热条件下,系统电-电转化效率从68.50%逐渐降低至59.23%。在环境温度15℃条件下,当硅酸铝保温厚度从20 mm阶梯增加至100 mm时,系统释能阶段的时间由4.34 h延长至4.58 h,电-电转化效率从55.85%增至58.44%;相比之下,不采取保温措施时,释能时长为4.61 h,系统电-电转化效率可达59.83%。
The distributed above-ground compressed-air energy storage(CAES)power plant stores gas in pipelines,offering convenience,flexibility,and operational adjustability.It eliminates dependence on geological conditions required by traditional salt caverns or artificial caverns and can meet the energy-storage needs of modern power systems.Using Amesim software,this study simulates the thermodynamic behavior of the gas storage chamber over a 24-h operating cycle,analyzing gas temperature and pressure,heat dissipation power,and system round-trip efficiency.The effects of ambient temperature and pipeline insulation thickness on these parameters are also investigated.Without temperature-maintenance measures for the storage chamber,the system round-trip efficiency increases slightly with ambient temperature,from 59.33%to 60.06%.Under ideal adiabatic conditions,the efficiency decreases gradually from 68.50%to 59.23%.At an ambient temperature of 15℃,increasing the aluminum-silicate insulation thickness stepwise from 20 to 100 mm prolongs the energyrelease duration from 4.34 to 4.58 h and raises the round-trip efficiency from 55.85%—58.44%.By comparison,with no insulation the energy-release duration is 4.61 h and the round-trip efficiency reaches 59.83%.
作者
夏超
岳晓宇
赵永乐
王勐哲
陶永健
赵倡皓
XIA Chao;YUE Xiaoyu;ZHAO Yongle;WANG Mengzhe;TAO Yongjian;ZHAO Changhao(Xi'an XD Electric Research Institute Co.,Ltd.;Xi'an Xidian Power Electronics Co.,Ltd.,Xi'an 710075,Shaanxi,China;School of Electrical Engineering,Xi'an Jiaotong University,Xi'an 710049,Shaanxi,China)
出处
《储能科学与技术》
北大核心
2026年第1期197-209,共13页
Energy Storage Science and Technology
基金
国家重点研发计划(24YFC3015100)
中国西电电气股份有限公司科技项目(D2024KJ022)。
关键词
压缩空气储能
地面储气室
热力学特性
系统效率
compressed-air energy storage(CAES)
above-ground gas storage chamber
thermodynamic characteristics
system efficiency
