NDLI: Fast Near-Optimal Heuristic for the Short-Term Hydro-Generation Planning Problem

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Fast Near-Optimal Heuristic for the Short-Term Hydro-Generation Planning Problem

Content Provider	Semantic Scholar
Author	Marchand, Alexia Gendreau, Michel Blais, Marko Emiel, Grégory
Copyright Year	2018
Abstract	Short-term hydro-generation planning can be efficiently modeled as a mixed integer linear program (MILP). Depending on the size of the system and the time horizon, the resulting MILP may be too large to be solved in reasonable time with commercial solvers. This paper presents a three-phase approach based on price decomposition that yields quickly near-optimal solutions to large-scale real-world instances. For any partition of the production system into subsystems, the first phase solves a linear program to estimate the marginal cost of electricity in each subsystem. The second phase solves local MILPs corresponding to each subsystem, and gives a solution that is almost feasible. The final phase slightly perturbs the solution to obtain a feasible solution that is proven to be near-optimal. Our method is tested on real instances corresponding to Hydro-Québec's production system.
Starting Page	227
Ending Page	235
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1109/TPWRS.2017.2696438
Volume Number	33
Alternate Webpage(s)	http://www.optimization-online.org/DB_FILE/2016/05/5437.pdf
Alternate Webpage(s)	https://doi.org/10.1109/TPWRS.2017.2696438
Journal	IEEE Transactions on Power Systems
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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