Optimization of a solar-based integrated energy system considering interaction between generation, network, and demand side

被引:54
|
作者
Luo, Xi [1 ]
Liu, Yanfeng [1 ]
Feng, Pingan [2 ]
Gao, Yuan [2 ]
Guo, Zhenxiang [2 ]
机构
[1] Xian Univ Architecture & Technol, Sch Bldg Serv Sci & Engn, State Key Lab Green Bldg Western China, Xian 710055, Peoples R China
[2] Shaanxi Changan Elect Power Co Ltd, Xian 710065, Peoples R China
基金
中国国家自然科学基金;
关键词
Integrated energy system; Solar energy; Power flow calculation; Energy system optimization; Mixed integrated linear programming; Demand response; STACKELBERG GAME APPROACH; MULTIOBJECTIVE OPTIMIZATION; HEATING NETWORK; DESIGN; ELECTRICITY; DESALINATION; WIND; DRIVEN; MODEL; MANAGEMENT;
D O I
10.1016/j.apenergy.2021.116931
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
Driven by the search for alternatives to fossil fuel, the ability to include solar energy into an integrated energy system (IES) has become increasingly important, especially in areas abundant with solar energy resources. However, a method to comprehensively and accurately analyze the energy-flow between the generation, network, and demand side in a district-level solar-based IES do not yet exist. This study uses both system optimization and power-flow calculations to analyze the energy interaction between the different sides (generation/network/demand) of a district solar-based IES in Tibet. To simplify the calculation, a decoupling optimization framework is developed that can independently solve problems sequentially from the demand side to the generation side, and the benefit caused by demand response is allocated between users using cooperative game theory. The results indicate: (i) Controlled demand responses can significantly improve the usage of solar energy and decrease system cost. (ii) The users furthest away from the energy source are most important to reduce system cost via demand response. (iii) Voltage amplitude in the electricity network drop most during peak hours, while the mass flow rates in the heating network increase with increasing heating demand. (iv) Increasing the number of Photovoltaic/thermal panels reduces the cost of the entire solar-based IES.
引用
收藏
页数:19
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