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1.中国能源建设集团天津电力设计院有限公司,天津市 300400
2.智能电网教育部重点实验室(天津大学),天津市 300072
刘晓鸥(1985—),男,通信作者,博士,主要研究方向:综合能源系统仿真与建模。E-mail:liuxiaoou126@126.com
葛少云(1964—),男,教授,博士生导师,主要研究方向:城市电网规划、电力系统运行优化及配电系统自动化等。E-mail:syge@tju.edu.cn
收稿日期:2019-05-23,
修回日期:2019-12-11,
网络出版日期:2020-03-13,
纸质出版日期:2020-04-25
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刘晓鸥,葛少云.区域综合能源系统的能效定义及其相关性分析[J].电力系统自动化,2020,44(8):8-18.
LIU Xiaoou,GE Shaoyun.Definition and Correlation Analysis on Energy Utilization Efficiency of Regional Integrated Energy System[J].Automation of Electric Power Systems,2020,44(8):8-18.
刘晓鸥,葛少云.区域综合能源系统的能效定义及其相关性分析[J].电力系统自动化,2020,44(8):8-18. DOI: 10.7500/AEPS20190523002.
LIU Xiaoou,GE Shaoyun.Definition and Correlation Analysis on Energy Utilization Efficiency of Regional Integrated Energy System[J].Automation of Electric Power Systems,2020,44(8):8-18. DOI: 10.7500/AEPS20190523002.
首先,考虑多种能源的能级水平,将区域综合能源系统分为能源供应、能源转换、能源传输、能源存储和能源需求5个环节,提出了适用于评价区域综合能源系统能效的能源利用效率表达式。然后,通过对能源利用效率相关因素的理论分析,指出5个环节中可再生能源渗透率、能源转化设备效率和容量配置结构、冷/热/电负荷需求结构是影响综合能源系统能源利用效率的核心要素。最后,依托中国某地示范园区展开实例分析,算例结果表明能效表达式能够准确反映区域综合能源系统多能互补耦合和梯级利用的特色,并通过分析区域综合能源系统能效展示了合理配置能源转化设备和优化冷/热/电负荷需求结构的重要性和方法,与理论分析结果一致,说明了所提区域综合能源系统能源利用效率表达式的有效性。
Firstly
considering the different energy levels of multiple energies
the regional integrated energy system (RIES) is divided into five links: energy supply
energy conversion
energy transmission
energy storage and energy demand. Also
an expression of energy utilization efficiency (EUE) for evaluating RIES is proposed. Secondly
through the theoretical analysis on related factors of EUE
it points that penetration of renewable energy
efficiency of energy conversion equipment and capacity allocation structure
demand structure of cool/ heat/ electricity load in five parts of RIES are the core elements
which affect the EUE of RIES. Finally
a case study of a certain demonstration district in China is given to show that the energy efficiency expression can accurately reflect the characteristics of multi-energy complementary coupling and cascade utilization of RIES. By analyzing the EUE of RIES
the importance and method of reasonably allocating energy conversion equipments and optimizing the demand structure of cool/heat/electricity load are demonstrated
which is consistent with the theoretical analysis. The validity of the proposed EUE of RIES is illustrated.
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