基于热压解耦的CAES系统的压缩机部分负荷性能分析  

Part-load Performance Analysis of Compressor in CAES System Based on Thermo-pressure Decoupling

作　　者：金鹏 李瑞雄 王焕然[1] 张秦瑞 Peng Jin;Rui-xiong Li;Huan-ran Wang;Qin-rui Zhang(School of Energy and Power Engineering,Xi'an Jiaotong University;Huaneng Shaanxi Power Generation Co.,Ltd.)

机构地区：[1]西安交通大学能源与动力工程学院 [2]华能陕西发电有限公司

出　　处：《风机技术》2025年第1期11-15,66,共6页Chinese Journal of Turbomachinery

摘　　要：目前,储能技术是目前解决可再生能源发电难并网的关键技术,而压缩空气储能(CAES)是大规模物理储能最合适的选择之一。压缩空气储能系统在非设计工况下运行会对系统的运行效率产生不利的影响,尤其将绝热压缩和等温压缩相结合,并使用TES储存压缩热的CAES系统的非设计工况比较复杂。因此本文考虑了该系统全设备的变工况模型,揭示了压缩机部分负荷时系统的详细动态性能,并研究了几种操作策略分别在储能阶段和释能阶段对系统变工况性能的影响。结果表明,在储能阶段的操作策略中,系统在部分负荷运行时,系统效率和TES的释热率都随负荷的增大而增大,但在特定情况下,系统效率有下降的趋势。Currently,energy storage technology is the key technology to solve the difficulty of integrating renewable energy power generation into the power grid,and compressed air energy storage(CAES) is one of the most suitable choice for large-scale physical energy storage.The operation of compressed air energy storage systems under off-design conditions can adversely affect the operational efficiency of the CAES system,especially the CAES systems using TES which combine adiabatic compression with isothermal compression under the off-design conditions are complicated.Therefore,in this paper,the off-design model of all the equipments of the system is considered to reveal the detailed dynamic performance of the system when the compressor is partially loaded,and the effects of several operations on the system variable operating condition performance are investigated in the energy storage phase and the energy release phase,respectively.The results show that in the operation strategy of the energy storage stage,both the system efficiency and the heat release rate of the TES increase with the load when the system is operated at partial load,but the system efficiency tends to decrease in specific cases.

关 键 词：压缩空气储能 非设计工况 液体活塞 部分负荷 

分 类 号：TH457[机械工程—机械制造及自动化] TH452