云南省矿井抽水蓄能电站潜力评估与建设关键技术

针对云南省矿井地下空间利用率低，蓄电储能需求日益增长的问题，综合考虑岩石力学、矿山规划、环境、经济等多方面影响因素，对云南省利用废弃矿井建设抽水蓄能电站的开发潜力进行了定量评估；同时以常规抽水蓄能电站为基础，结合云南省地质条件、矿产资源分布、矿山地下空间分布特点等，对矿井抽水蓄能电站建设时站址的选择、地下空间的稳定、地下空间防渗等关键技术的可行性进行了综合评价。初步研究结果表明：云南省自然资源极及其丰富，开发条件优越，现阶段能够较好地满足云南省电力需求；云南省众多矿山的累积采空区已超过15亿m3，其中可利用采空区高达1.2亿m3，为建造井下抽水蓄能电站提供了良好的基础条件；云南省矿井抽水蓄能电站年发电量可达329.1亿kWh，根据某矿山实例计算，电站每日抽水5h，其年发电量将达到1.76亿kWh。根据研究结果显示，利用废弃矿井改造建设抽水蓄能电站具有一定的可行性，能够产生较好的动静态效益。将“智慧矿山”与废弃矿井建设抽水蓄能电站相结合，实现智能一体化抽水蓄能，在未来具有良好的发展前景。

Potential Evaluation and Construction Key Technologies of Pumped-storage Power Stations in Mines of Yunnan Province

In view of the problems of low utilization rate of underground mine space and increasing demand for electricity storage and energy storage in Yunnan Province, the feasibility and key technologies of the construction of pumped-storage power stations in underground mines are analyzed,in comprehensive consideration of rock mechanics, mining planning, environment, economy and other various factors,quantitative evaluation is made on the development potential of the abandoned mine pumped storage power station in Yunnan Province,at the same time,based on the conventional pumped-storage power plant, combining with the geological conditions, the natural resources and underground excavation space situation,the feasibility of key technologies such as site selection, stability of underground space and anti-seepage of underground space during the construction of mine pumped storage power station is comprehensively evaluated.The preliminary results show that:Yunnan Province is rich in natural resources and has superior development conditions, which can better meet the electricity demand of Yunnan Province at the present stage.The accumulated excavation space of numerous mines in Yunnan Province exceeds 1.5 billion m3, and the usable volume is about 120 million m3, which provides excellent basic conditions for the construction of underground pumped-storage power stations. the pumped-storage power stations in mines of Yunnan Province can generate 32.9 billion kWh of electricity per year.According to the calculation based on a real mine, the power generation will reach 176 million kWh per year when the water is pumped for 5 hours a day, and it will bring huge economic benefits.According to the research results,it is feasible to reconstruct pumped storage power station using abandoned mine, and it can produce better dynamic and static benefits.Combining "smart mine" with pumped storage power station constructed by using abandoned mine to realize intelligent integrated pumped storage has a good development prospect in the future.