储能科学与技术 ›› 2013, Vol. 2 ›› Issue (6): 615-619.doi: 10.3969/j.issn.2095-4239.2013.06.009

• 研究及进展 • 上一篇    下一篇

压缩空气储能系统设计及其热力学分析

邓广义1, 郭祚刚1, 2, 陈光明2   

  1. 1 中国能源建设集团广东省电力设计研究院,广东 广州 510663;
    2 浙江大学制冷与低温研究所,浙江 杭州 310027
  • 收稿日期:2013-10-14 修回日期:2013-10-20 出版日期:2013-12-19 发布日期:2013-12-19
  • 作者简介:邓广义(1966--),女,副总工程师,研究方向为分布式能源,新能源发电及储能技术,E-mail:dengguangyi@gedi.com.cn.
  • 基金资助:
    广东省自然科学基金项目(S2013040013104)及中国博士后科学基金项目(2013M531456)

Design and thermodynamic analysis of compressed air energy storage system

DENG Guangyi1, GUO Zuogang1, 2, CHEN Guangming2   

  1. 1 Guang Dong Electric Power Design Institute,China Energy Engineering Group Co. Ltd.,Guangzhou 510663,Guangdong,China;
    2 Institute of Refrigeration and Cryogenics,Zhejiang University,Hangzhou 310027,Zhejiang,China
  • Received:2013-10-14 Revised:2013-10-20 Online:2013-12-19 Published:2013-12-19

摘要: 压缩空气储能技术具有提升风能与太阳能等可再生资源电能质量的潜力,通过此项技术实现间歇性与不稳定性可再生电力的有效储存,进而在电网负荷高峰期以优质电力的形式稳定输出.结合热力学分析方法设计了储能功率56.58 MW,释能输出功率154.76 MW的压缩空气储能系统.在释能阶段透平机组配置上,参照GE 9171E燃机布置第二级透平入口参数,并以其812.41 K高温烟气余热提供第一级透平工质所需全部热量,无需为第一级透平配备专门燃烧器.在此思路下设计的压缩空气储能系统,热耗可降低至3783.96 kJ/(kW·h),储能系统的能量转换效率也高达56.11%.

关键词: 可再生能源电力, 压缩空气储能, 分级压缩, 回热技术

Abstract: Compressed air energy storage (CAES) has the potential to improve the quality of renewable electricity from wind and solar energy. Using such a technology, the intermittent renewable electricity can be stored at off peak hours, and released in a steady manner at peak time of electricity grid. This paper considers a CAES system for an electricity storage capacity of 56.58 MW and an output capacity of 154.76 MW. For the selection of turbines for the energy release step, reference is made to the second stage turbine of the GE 9171E configuration. Flue gas temperature of the second stage turbine could reach 812.41 K to satisfy the heat supply requirement for heating the compressed air before entering the first stage turbine. As a result, the high pressure combustor for the first turbine could be removed from the system. The heat consumption for the CAES system could be as low as 3783.96 kJ/(kW·h) and the system energy conversion efficiency could reach 56.11%.

Key words: renewable electricity, compressed air energy storage (CAES), multi-stage compression, waste heat recovery

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