Journal Article

FZJ-2021-00504

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png DeLoop: Decomposition-based Long-term operational optimization of energy systems with time-coupling constraints

Baumgärtner, N.RWTH* ; Shu, D. Y.FZJ* ; Bahl, B.RWTH* ; Hennen, M.RWTH* ; Hollermann, D. E.RWTH* ; Bardow, A. (Corresponding author)FZJ*RWTH*

2020
Elsevier Science Amsterdam [u.a.]

This record in other databases:    

Please use a persistent id in citations: http://hdl.handle.net/2128/26843  doi:10.1016/j.energy.2020.117272

Abstract: Long-term operational optimization of energy systems results in challenging, large-scale problems. These large-scale problems can be directly decomposed into smaller subproblems, in the absence of time-coupling constraints and variables. However, time-coupling is common in energy systems, e. g. due to (seasonal) energy storage and peak-power prices. To solve time-coupled long-term operational optimization problems, we propose the method DeLoop for the Decomposition-based Long-term operational optimization of energy systems with time-coupling. DeLoop calculates feasible solutions (upper bounds) by decomposing the operational optimization problem into smaller subproblems. The solutions of these subproblems are recombined to obtain a feasible solution for the original long-term problem. To evaluate the quality of the feasible solutions, DeLoop computes lower bounds by linear programming relaxation. DeLoop iteratively decreases the number of subproblems and employs the Branch-and-Cut procedure to tighten the bounds. In a case study of an energy system, DeLoop converges fast, outperforming a commercial state-of-the-art solver by a factor of 32.

---

Contributing Institute(s):

1. Modellierung von Energiesystemen (IEK-10)

Research Program(s):

1. 153 - Assessment of Energy Systems – Addressing Issues of Energy Efficiency and Energy Security (POF3-153) (POF3-153)

Appears in the scientific report 2020

---

Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---