基于废弃矿井的综合能源系统容量优化配置  

Optimal Capacity Allocation of Integrated Energy Systems Based on Abandoned Mines

作　　者：曹娜 韩志鹏 于群 CAO Na;HAN Zhi-peng;YU Qun(School of Electrical and Automation Engineering,Shandong University of Science and Technology,Qingdao 266590,China)

机构地区：[1]山东科技大学电气与自动化工程学院,青岛266590

出　　处：《科学技术与工程》2024年第32期13844-13854,共11页Science Technology and Engineering

摘　　要：废弃矿井的关闭,产生了大量可利用伴生资源。为避免矿区资源浪费,可利用废弃矿井地上、地下资源构建多能互补的废弃矿井综合能源系统(integrated energy system,IES)。为实现IES合理运行,须探讨基于废弃矿井的IES容量优化配置问题。以岱庄煤矿废弃矿区为例,利用井上沉陷区铺设分布式光伏,井下巷道、井底车场等作为压缩空气储能(compressed air energy storage,CAES)储气库,采用煤层气开发技术回收井下残余煤层气燃气发电,构建废弃矿井IES。针对IES晚上光伏发电为零、大型CAES启动时间长等问题,提出一种考虑部分蓄电池储能的IES容量优化配置方法。首先,制定废弃矿井IES运行规则;然后以IES经济和碳排放指标为目标,建立计及碳交易机制的低碳矿区储能容量配置模型;最后针对蓄电池和外电网优先出力问题,提出相应运行动态优化控制策略,探讨不同策略下有无备用储能对IES运行的影响。基于废弃矿井典型日,验证所提动态优化控制策略的有效性,并确定IES最优储能容量配置方案。结果表明:通过配置一定电储能可有效缓解源荷出力的波动性对IES运行的影响;废弃矿井区域IES可充分利用采煤沉陷区、残余煤层气、地下空间等伴生资源,为废弃矿井开发再利用提供了工程参考。The closure of abandoned mines has generated a large amount of usable associated resources.To avoid wasting resources in mining areas,a multi energy complementary abandoned mine integrated energy system(IES)can be constructed by utilizing the above ground and underground resources of abandoned mines.To achieve the rational operation of IES,it is necessary to explore the optimization configuration of IES capacity based on abandoned mines.The abandoned mining area of Daizhuang coal mine was taken as an example,using distributed photovoltaics laid in the subsidence area above the mine,underground tunnels,underground parking lots,etc.as compressed air energy storage(CAES)gas storage facilities,using coalbed methane development technology to recover residual coalbed methane gas underground for power generation,and constructing an abandoned mine IES.A capacity optimization configuration method for IES considering partial battery energy storage was proposed to address issues such as zero photovoltaic power generation at night and long start-up time for large-scale CAES.Firstly,operating rules were established for abandoned mine IES.Then,with IES economic and carbon emission indicators as the targets,a low-carbon mining area energy storage capacity allocation model was established that taken into account carbon trading mechanisms.Finally,corresponding dynamic optimization control strategies were proposed for the priority output of batteries and external power grids,and the impact of backup energy storage on the operation of IES under different strategies was explored.Based on typical days of abandoned mines,the effectiveness of the proposed dynamic optimization control strategy was verified and the optimal energy storage capacity configuration scheme was determined for IES.The results show that by configuring a certain amount of energy storage,the impact of source load output fluctuations on the operation of IES can be effectively alleviated.The abandoned mine area IES can fully utilize associated resources such as coal

关 键 词：废弃矿井 压缩空气储能(CAES) 综合能源系统(IES) 容量配置 蓄电池 

分 类 号：TM731[电气工程—电力系统及自动化]