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基于废弃矿井的物理储能技术研究与发展前景
Research and development prospects of physical energy storage technologybased on abandoned mines
【摘要】 随着环保压力的持续增大,各类关闭矿井数量逐年增加,废弃矿井资源的再利用已成为重要的研究课题。为破解新能源并网消纳难题与实现废弃矿井资源的高效再利用,针对基于废弃矿井的长时物理储能技术展开了系统研究。文章分析了储能技术对于风电、光伏发电等间歇性新能源并网的关键作用;讨论了传统废弃矿井资源利用方式及其存在的局限性;重点研究了基于废弃矿井的抽水蓄能、重力储能以及压缩空气储能等长时物理储能技术的发展现状和亟待解决的问题;提出了基于废弃矿井物理储能的共性关键技术及其解决思路;据此构建了废弃矿井物理模型,并以面向龙东煤矿的抽水蓄能技术为例,讨论了废弃矿井的井道深度、地下空间等参数对储能特性的影响,提出了物理储能适用性的评估指标体系;并对比分析了废弃矿井与新建相同参数矿井的显著成本优势。研究表明:利用废弃矿井的巨大地下空间,开发长时物理储能电站极具发展前景,既可解决新能源消纳问题,又可为废弃矿井的资源再利用开辟新路径,建议给予重点支持。
【Abstract】 With the continuous intensification of environmental protection pressures, the number of various closed mines is on the rise year by year, making the reuse of abandoned mine resources an important research topic.To solve the problem of integrating new energy into the grid and achieve efficient reuse of abandoned mine resources, a systematic study was conducted on long-term physical energy storage technology based on abandoned mines.We discussed the pivotal role of energy storage technologies in the grid integration of intermittent new energy sources such as wind power and photovoltaic power; analyzed the traditional utilization methods of abandoned mine resources and their existing limitations; focused on investigating the development status and urgent issues to be addressed of long-duration physical energy storage technologies based on abandoned mines, including pumped storage, gravity energy storage, and compressed air energy storage; explored the common key technologies for physical energy storage in abandoned mines and their corresponding solutions.Based on this, a physical model of abandoned mines was constructed.Taking the pumped storage technology for Longdong Coal Mine as an example, we discussed the impacts of parameters such as the shaft depth and underground space of abandoned mines on energy storage characteristics, and proposed an evaluation index system for the applicability of physical energy storage.Additionally, we analyzed the significant cost advantages using abandoned mines rather than newly excavated mines with the same parameters.The research indicates that developing long-duration physical energy storage power stations by leveraging the vast underground space of abandoned mines holds considerable development prospects.This approach not only addresses the issue of new energy consumption but also creates a new path for the reuse of abandoned mine resources.
【Key words】 abandoned mine; physical energy storage; gravity energy storage; pumped storage hydropower; compressed air energy storage; new energy accommodation;
- 【文献出处】 煤炭工程 ,Coal Engineering , 编辑部邮箱 ,2025年S1期
- 【分类号】TD98;TK02
- 【下载频次】27