Demand side management in urban district heating networks

被引:94
作者
Cai, Hanmin [1 ]
Ziras, Charalampos [1 ]
You, Shi [1 ]
Li, Rongling [2 ]
Honore, Kristian [3 ]
Bindner, Henrik W. [1 ]
机构
[1] Tech Univ Denmark, Dept Elect Engn, DK-2800 Lyngby, Denmark
[2] Tech Univ Denmark, Dept Civil Engn, DK-2800 Lyngby, Denmark
[3] HOFOR AS, DK-2300 Copenhagen S, Denmark
关键词
Smart energy systems; 4th generation district heating; Demand side management; Data-driven modelling; Congestion; Energy flexibility; ENERGY SYSTEM; TEMPERATURE; PERFORMANCE; OPTIMIZATION; CONSUMPTION; OPERATION; MODEL;
D O I
10.1016/j.apenergy.2018.08.105
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
This paper proposes a realistic demand side management mechanism in an urban district heating network (DHN) to improve system efficiency and manage congestion issues. Comprehensive models including the circulating pump, the distribution network, the building space heating (SH) and domestic hot water (DHW) demand were employed to support day-ahead hourly energy schedule optimization for district heating substations. Flexibility in both SH and DHW were fully exploited and the impacts of both weekly pattern and building type were modelled and identified in detail. The energy consumption scheduling problem was formulated for both the individual substations and the district heating operator. Three main features were considered in the formulation: user comfort, the heat market and network congestion. A case study was performed based on a representative urban DHN with a 3.5 MW peak thermal load including both residential and commercial buildings. Results show an up to 11% reduction of energy costs. A sensitivity analysis was conducted which provides decision makers with insights into how sensitive the optimum solution is to any changes in energy, user comfort or pumping costs.
引用
收藏
页码:506 / 518
页数:13
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