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Generation of multiple best solutions in multiobjective optimal design of energy supply systems

  • Optimization approaches based on the mixed-integer linear programming (MILP) have been utilized to design energy supply systems. In this paper, an MILP method utilizing the hierarchical relationship between design and operation is extended to search not only the optimal solution but also suboptimal ones which follow the optimal one without any omissions, what are called K-best solutions, efficiently in a multiobjective optimal design problem. At the upper level, the values of design variables for the K-best solutions are searched by the branch and bound method. At the lower level, the values of operation variables are optimized independently at each period by the branch and bound method under the values of design variables given tentatively. Incumbents for the K-best solutions and an upper bound for all the values of the objective function for the K-best solutions are renewed if necessary between both the levels. This method is implemented into a commercial MILP solver. A practical case study on the multiobjective optimal design of a cogeneration system is conducted, and the validity and effectiveness of the method are clarified.

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Metadaten
Verfasserangaben:Ryohei Yokoyama, Yuji ShinanoORCiD, Syusuke Taniguchi, Masashi Ohkura, Tetsuya Wakui
Dokumentart:Konferenzbeitrag
Titel des übergeordneten Werkes (Englisch):Proceedings of the 15th International Conference on Power Engineering. ICOPE 2015
Jahr der Erstveröffentlichung:2015
Verlagspublikation:Proceedings of the 15th International Conference on Power Engineering
DOI:https://doi.org/10.1299/jsmeicope.2015.12._ICOPE-15-_56
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