水电洞室压缩空气储能地下储气库可行性分析

Feasibility Analysis of Underground Gas Storage for Compressed Air Energy Storage in Hydropower Caverns

随着“双碳”政策的推进,储能系统已经受到越来越多社会及学者的关注。笔者从压缩空气储能的技术现状及其系统原理着手,介绍了压缩空气储能系统应用环境。结合水电站自身特点,分析水电站地下洞室作为压缩空气储能系统储气室的可能性以及关键点并提出相关建议。基于水风光蓄储一体化新能源开发模式,从水电站地下洞室资源储量、洞室地质条件、洞型与储气库的断面设计类型及其特点等方面,深入分析利用水电站地下洞室建设压缩空气储能电站的优劣势,总结了水电洞室初步利用的评估原则,并展望了利用水电站地下洞室建设压缩空气储能项目的发展与技术突破方向。

With the promotion of the"dual carbon"policy,energy storage systems have attracted more and more attention from society and scholars.Starting from the current technological status and system principles of compressed air energy storage,the article introduces the application environment of compressed air energy storage systems.Based on the characteristics of hydropower stations,the possibility and key points of using underground caverns as compressed air energy storage system are analyzed,and relevant suggestions are proposed.Based on the renewable energy development mode of integration of water,wind,solar and storage,the advantages and disadvantages of using hydropower station underground caverns to build compressed air energy storage power stations are analyzed in depth from the aspects of resource reserves,geological conditions of caverns,tunnel type and section design type and characteristics of gas storage.The evaluation principles of preliminary utilization of hydropower caverns are summarized,and the development and technological breakthrough direction by using underground caverns of hydropower stations to construct compressed air energy storage projects are also anticipated.