依托低阶煤电站的提质储热卡诺电池及其性能分析  

Carnot Battery Integrated with Low-rank Coal Power Plant for the Stored Heat Upgrading and Its Performance Analysis

作　　者：邵明轩 孙杨 张祥 许诚[2] 李栋 吴瑞鹏 王德昌[1] SHAO Mingxuan;SUN Yang;ZHANG Xiang;XU Cheng;LI Dong;WU Ruipeng;WANG Dechang(College of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266071,Shandong Province,China;School of Energy,Power and Mechanical Engineering,North China Electric Power University,Changping District,Beijing 102206,China;State Grid Zhejiang Electric Power Co.,Ltd.,Electric Power Research Institute,Hangzhou 310014,Zhejiang Province,China)

机构地区：[1]青岛大学机电工程学院,山东省青岛市266071 [2]华北电力大学能源动力与机械工程学院,北京市昌平区102206 [3]国网浙江省电力有限公司电力科学研究院,浙江省杭州市310014

出　　处：《中国电机工程学报》2023年第14期5525-5536,共12页Proceedings of the CSEE

基　　金：国家自然科学基金(面上项目)(52176004);山东省大学生创新创业训练计划资助项目(S202211065053)。

摘　　要：大规模、高效率的储能技术,是新能源电力持续发展的重要保障。该文提出一种卡诺电池的新模式,即依托低阶煤电站的提质储热卡诺电池,以低阶煤干燥与存储替代常规的储热。结合典型案例与仿真模型,分析耦合系统内部的能量转化特性,明确碳排放水平与新能源电力消纳能力的变化,进而探讨储能功率对各单元性能的影响规律及其成因。结果表明,在电站不同的稳燃负荷下,储能规模可达22.8~61.0MW,往返效率可达72.2%~97.2%;运行模拟表明,单日可多消纳可再生弃电165.5MW×h,降低碳排放3.56%(134.5t)。该储能模式不仅可以实现电能的大规模、高效率存储,还可以改善电站的深度调峰能力与碳排放水平,可为存量煤电的灵活低碳转型与卡诺电池的工业化提供技术选项。Large-scale electric power storage technologies with high efficiency are essential to the future grid.A novel Carnot battery integrated with a low-rank coal power plant is proposed in this paper,which can store electric power in low-rank coal.A simulation model is established with a typical case,and on this basis,the energy conversion pattern,the abilities for carbon reduction and operational flexibility enhancement,and the relationship between the system performance and the scale of power storage are discussed.The performance analysis results show that,under different minimum stable combustion loads of the boiler,the electricity storage power can reach 22.8~61.0MW,and the round-trip efficiency can achieve 77.2%~97.2%.The operational simulation results show that,the integrated Carnot battery can accommodate 165.5MW×h of the renewable power to be curtailed,and reduce 3.56%of Carbon emission(134.5t)in 24h.The results show that the novel Carnot battery can store large-scale electric power with high efficiency;meanwhile,the Carbon emission rate and the minimum technical load of the integrated power plant can be reduced.The novel mode of Carnot battery will be a technical option for the flexible and low-carbon transition of the existing coal power plants and the industrialization of the Carnot battery.

关 键 词：卡诺电池 燃煤电站灵活运行 燃煤电站碳减排 提质储热 低阶煤预干燥 新能源电力消纳 

分 类 号：TM911[电气工程—电力电子与电力传动]