人工洞室型压气储能(CAES)电站是当前深地储能技术研究的重点,对其开展选址适宜性评价具有重要意义。本研究基于安全性原则和经济性原则,系统分析影响人工洞室储气库选址的相关因素,在此基础上构建涵盖12个指标的选址评价体系,并采用层次分析法(AHP)对其进行权重计算与重要性排序。结果显示,地层岩性、区域构造稳定性、岩体质量等级、场地可用性和岩体分布范围为5项重要指标,其余为次要指标。在此基础上,结合工程实践与专家意见,提出一套分级清晰、操作简便的选址适宜度评价方法,通过查表评分可快速计算目标站址的综合适宜度评价值Q。最后,以我国西北地区某CAES工程实例开展站址比选评价,结果表明主站址综合适宜度明显优于备选站址,宜优先推进下一步工作,评价结果与专家意见一致。研究成果可为CAES人工洞室储气库科学选址提供理论支撑与技术依据。
Artificial cavern-based compressed air energy storage (CAES) power stations are a focal point in deep underground energy storage research, and evaluating their site suitability is of great importance. Based on the principles of safety and economic efficiency, the factors influencing site selection for artificial cavern gas storage facilities are systematically analyzed. A site evaluation system comprising 12 indicators is established, and the analytic hierarchy process is employed to calculate their weights and determine their relative importance. The results show that stratum lithology, regional structural stability, rock mass quality grade, site availability, and rock mass distribution range are the five primary indicators, with the others being secondary. In addition, based on engineering practice and expert judgment, a clear and user-friendly method for site suitability evaluation is proposed. This method allows for the rapid assessment of a target site’s comprehensive suitability score through a table-based scoring approach. Finally, a CAES project in Northwest China serves as a case study for comparative site evaluation. The results indicate that the main site demonstrates significantly higher comprehensive suitability than the alternative site, aligning with expert opinions and indicating that it should be prioritized for development. These findings provide theoretical support and technical guidance for the scientific site selection of artificial cavern-based CAES facilities.