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Home Members Lenz, Ralf, Dr.

Lenz, Ralf, Dr.

Contact

Room
3303
Phone
+49 30 84185-180
Email
Email
Division
Mathematical Algorithmic Intelligence
Department
Applied Algorithmic Intelligence Methods
Group
Prescriptive Systems

Projects

Projects as Member

Media Name: forne_2color.png

ForNe - Research Cooperation Network Optimization

The liberalization of the German gas market poses novel and difficult planning problems to transmission network operators. They are obliged by the Gas Grid Access...

ForNe - Research Cooperation Network Optimization

Publications

2022
Optimization of Capacity Expansion in Potential-driven Networks including Multiple Looping - A comparison of modelling approaches OR Spectrum, Vol.44, pp. 179-224, 2022 (preprint available as ZIB-Report 18-44) Ralf Lenz, Kai-Helge Becker PDF (ZIB-Report)
PDF (ZIB-Report)
BibTeX
DOI
Tight Convex Relaxations for the Expansion Planning Problem Journal of Optimization Theory and Applications, Vol.194, pp. 325-352, 2022 (preprint available as ZIB-Report 21-05) Ralf Lenz, Felipe Serrano PDF (ZIB-Report)
BibTeX
DOI
2021
Optimal Operation of Transient Gas Transport Networks Optimization and Engineering, Vol.22, pp. 735-781, 2021 (preprint available as ZIB-Report 19-23) Kai Hoppmann-Baum, Felix Hennings, Ralf Lenz, Uwe Gotzes, Nina Heinecke, Klaus Spreckelsen, Thorsten Koch PDF (ZIB-Report)
PDF (ZIB-Report)
PDF (ZIB-Report)
BibTeX
DOI
Optimization of Stationary Expansion Planning and Transient Network Control by Mixed-Integer Nonlinear Programming Doctoral thesis, Technische Universität Berlin, 2021 Ralf Lenz BibTeX
DOI
Pipe Merging for Transient Gas Network Problems ZIB-Report 21-10 Ralf Lenz PDF
BibTeX
URN
2020
Network and Storage Mathematical Optimization for Efficient and Robust Energy Networks, Springer, 2020, ISBN: 978-3-030-57442-0 R. Schwarz, F. Lacalandra, L. Schewe, A. Bettinelli, D. Vigo, A. Bischi, T. Parriani, E. Martelli, K. Vuik, R. Lenz, H. Madsen, I. Blanco, D. Guericke, I. Yüksel-Ergün, J. Zittel BibTeX
DOI
2016
Optimal Looping of Pipelines in Gas Networks ZIB-Report 16-67 Ralf Lenz, Robert Schwarz PDF
BibTeX
URN
2015
Computational results for validation of nominations Evaluating Gas Network Capacities, 2015, ISBN: 9781611973686 Benjamin Hiller, Jesco Humpola, Thomas Lehmann, Ralf Lenz, Antonio Morsi, Marc Pfetsch, Lars Schewe, Martin Schmidt, Robert Schwarz, Jonas Schweiger, Claudia Stangl, Bernhard Willert BibTeX
The Specialized MINLP Approach Evaluating Gas Network Capacities, 2015, ISBN: 9781611973686 Jesco Humpola, Armin Fügenschuh, Benjamin Hiller, Thorsten Koch, Thomas Lehmann, Ralf Lenz, Robert Schwarz, Jonas Schweiger BibTeX