耦合太阳能的压缩空气储能系统特性分析

Characteristics Analysis of Compressed Air Energy Storage System Coupled with the Solar Energy

摘要: 利用压缩空气储能系统可有效消纳太阳能的废弃能量，提高电网的电能利用率。同时，压缩空气储能系统可解决太阳能自身的不稳定性和间歇性。所以有必要利用压缩空气储能系统的特点对太阳能热进行更合理的利用。本文针对耦合太阳能的压缩空气储能系统开展研究，分析了系统的热力特性。研究了恒压和恒容两种运行条件下在不同太阳能输入热量、透平入口压力等关键参数变化时对系统性能影响规律，结果表明，恒压储气罐运行条件下系统具有更明显性能优势。

Abstract: The utilization of compressed air energy storage system can effectively recover the discarded solar energy and improve the power utilization rate of the power grid. At the same time, the compressed air energy storage system can solve the instability and intermittent problems of solar energy. So it is necessary to make a more reasonable use of solar energy on the base of the characteristics of compressed air energy storage system. This paper studies the thermal characteristics of the compressed air energy storage system integrated with the solar energy and the effects of the key parameters such as the inputted solar energy amount and turbine inlet pressure on the system performances of two kinds of operation situations with the constant stored air pressure and the constant stored air tank volume. The results show that the compressed air energy storage system under the operation situation with the constant stored air pressure has better performances than the compressed air energy storage system under the operation situation with the constant stored air tank volume.