Large-scale industrial energy systems optimization under uncertainty: A data-driven robust optimization approach

•DDRO is firstly applied in energy systems optimization under uncertainty.•Deterministic and data-driven robust optimization frameworks are proposed.•The uncertainty set is constructed by SVC based on real industrial data.•The DDRO model is formulated as an MINLP problem.•The effect of the regulariz...

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Vydané v:Applied energy Ročník 259; s. 114199
Hlavní autori: Shen, Feifei, Zhao, Liang, Du, Wenli, Zhong, Weimin, Qian, Feng
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Elsevier Ltd 01.02.2020
Predmet:
case studies
Data-driven robust optimization
energy
energy costs
ethylene
industry
Large-scale industrial energy systems
Mixed-integer non-linear programming
Operational optimization
system optimization
Uncertainty
Data-driven robust optimization
Uncertainty
Mixed-integer non-linear programming
Large-scale industrial energy systems
Operational optimization
ISSN:0306-2619, 1872-9118
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Shrnutí:•DDRO is firstly applied in energy systems optimization under uncertainty.•Deterministic and data-driven robust optimization frameworks are proposed.•The uncertainty set is constructed by SVC based on real industrial data.•The DDRO model is formulated as an MINLP problem.•The effect of the regularization parameter on the solution is explored. In the large-scale industries, optimization of multi-type energy systems to minimize the total energy cost is of great importance and has received worldwide attentions. In the real industrial plants, the deterministic optimization may encounter difficulties because of various uncertainties. In this paper, the deterministic and robust optimization frameworks are proposed for energy systems optimization under uncertainty. A hybrid modeling method is applied to develop building block models based on the mechanism and process historical data. The deterministic optimization model can be further formulated as a mixed-integer non-linear programming problem. Considering enthalpy uncertainties, a generalized intersection kernel support vector clustering is employed to construct the uncertainty set. By introducing the derived uncertainty set in the deterministic optimization model, a robust optimization model is presented. A case study on the energy system of a real ethylene plant is carried out to illustrate the performance of the proposed approach and the effect of regularization parameter κ on the optimization results is studied. The results show that the optimized energy costs are 15148.84 kg/h and 16209.81 kg/h in deterministic and robust optimization methods. Despite higher energy consumption in robust optimization, the proposed method yields a trade-off between energy cost and robustness. The conservatism of the solution can be adjusted by the regularization parameter, and in this system κ=0.02 is recommended.
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ISSN:0306-2619
1872-9118
DOI:10.1016/j.apenergy.2019.114199