Underground Thermal Energy Storage(UTES)store unstable and non-continuous energy underground,releasing stable heat energy on demand.This effectively improve energy utilization and optimize energy allocation.As UTES te...Underground Thermal Energy Storage(UTES)store unstable and non-continuous energy underground,releasing stable heat energy on demand.This effectively improve energy utilization and optimize energy allocation.As UTES technology advances,accommodating greater depth,higher temperature and multi-energy complementarity,new research challenges emerge.This paper comprehensively provides a systematic summary of the current research status of UTES.It categorized different types of UTES systems,analyzes the applicability of key technologies of UTES,and evaluate their economic and environmental benefits.Moreover,this paper identifies existing issues with UTES,such as injection blockage,wellbore scaling and corrosion,seepage and heat transfer in cracks,etc.It suggests deepening the research on blockage formation mechanism and plugging prevention technology,improving the study of anticorrosive materials and water treatment technology,and enhancing the investigation of reservoir fracture network characterization technology and seepage heat transfer.These recommendations serve as valuable references for promoting the high-quality development of UTES.展开更多
考虑电动汽车的车网互联(vehicle to grid,V2G)运行模式,提出了光储充放电站应用于应急电源的配置方法。以医院为例,首先,根据门诊大楼屋顶面积确定光伏发电装机容量,以重要负荷功率需求确定电动汽车充放电桩数。其次,以光储充放电站运...考虑电动汽车的车网互联(vehicle to grid,V2G)运行模式,提出了光储充放电站应用于应急电源的配置方法。以医院为例,首先,根据门诊大楼屋顶面积确定光伏发电装机容量,以重要负荷功率需求确定电动汽车充放电桩数。其次,以光储充放电站运营商收益最大化为目标函数,医院后备时间(2h)用电需求为约束条件,建立了光储充放电站储能容量配置模型,利用CPLEX求解器求解模型。最后,校验光储充放电站是否满足医院24h用电需求。以医院典型季节日负荷为例进行了算例分析,结果表明:光储充放电站在正常运行时经济效益显著,且能够满足配电网供电中断时医院的应急用电需求。方法可推广至其他重要电力用户的应急电源配置。展开更多
基金supported by the National Nature Science Foundation of China under grant No.42272350the Foundation of Shanxi Key Laboratory for Exploration and Exploitation of Geothermal Resources under grant No.SX202202.
文摘Underground Thermal Energy Storage(UTES)store unstable and non-continuous energy underground,releasing stable heat energy on demand.This effectively improve energy utilization and optimize energy allocation.As UTES technology advances,accommodating greater depth,higher temperature and multi-energy complementarity,new research challenges emerge.This paper comprehensively provides a systematic summary of the current research status of UTES.It categorized different types of UTES systems,analyzes the applicability of key technologies of UTES,and evaluate their economic and environmental benefits.Moreover,this paper identifies existing issues with UTES,such as injection blockage,wellbore scaling and corrosion,seepage and heat transfer in cracks,etc.It suggests deepening the research on blockage formation mechanism and plugging prevention technology,improving the study of anticorrosive materials and water treatment technology,and enhancing the investigation of reservoir fracture network characterization technology and seepage heat transfer.These recommendations serve as valuable references for promoting the high-quality development of UTES.
文摘考虑电动汽车的车网互联(vehicle to grid,V2G)运行模式,提出了光储充放电站应用于应急电源的配置方法。以医院为例,首先,根据门诊大楼屋顶面积确定光伏发电装机容量,以重要负荷功率需求确定电动汽车充放电桩数。其次,以光储充放电站运营商收益最大化为目标函数,医院后备时间(2h)用电需求为约束条件,建立了光储充放电站储能容量配置模型,利用CPLEX求解器求解模型。最后,校验光储充放电站是否满足医院24h用电需求。以医院典型季节日负荷为例进行了算例分析,结果表明:光储充放电站在正常运行时经济效益显著,且能够满足配电网供电中断时医院的应急用电需求。方法可推广至其他重要电力用户的应急电源配置。
