Economic Optimization Dispatch Model of a Micro-Network with a Solar-Assisted Compressed Air Energy Storage Hub, with Consideration of Its Operationally Feasible Region

Processes

Shengwei Mei¹  Xiaotao Chen¹  Laijun Chen¹  Yongqing Guo¹  Yang Si¹  Libin Yang²  Ming Zong² 

[1] Qinghai Key Laboratory of Efficient Utilization of Clean Energy, Qinghai University, Xining 810016, China;School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China;

关键词: SA-CAES hub;    economic dispatch;    power distribution network;    district heating network;    operationally feasible region;   

DOI  :  10.3390/pr10050963

来源: DOAJ

【 摘 要 】

Using a variety of renewable energy sources can significantly improve energy system flexibility and efficiency. Energy hubs, which have the function of generating, converting, and storing energy in various forms, are vital facilities in micro-energy networks (MENs). In this paper, we present a Solar-Assisted Compressed Air Energy Storage (SA-CAES) hub which can accommodate and flexibly supply multi-energy by being connected to a power distribution network (PDN) and a district heating network (DHN). We formulate economic dispatch models of the SA-CAES hub, the PDN, and the DHN, respectively. The economic dispatch model is formulated as a mixed-integer linear programming problem (MILP) that can be solved by commercial solvers. Further, the operationally feasible region of the SA-CAES hub is explored by thermodynamic analysis. The results indicate that the operation costs have been reduced by 4.5% in comparison with conventional MENs.

【 授权许可】

Unknown