Derivation of near-optimal pump schedules for water distribution by simulated annealing

G Mccormick () and R S Powell
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G Mccormick: Brunel University
R S Powell: Brunel University

Journal of the Operational Research Society, 2004, vol. 55, issue 7, 728-736

Abstract: Abstract The scheduling of pumps for clean water distribution is a partially discrete non-linear problem with many variables. The scheduling method described in this paper typically produces costs within 1% of a linear program-based solution, and can incorporate realistic non-linear costs that may be hard to incorporate in linear programming formulations. These costs include pump switching and maximum demand charges. A simplified model is derived from a standard hydraulic simulator. An initial schedule is produced by a descent method. Two-stage simulated annealing then produces solutions in a few minutes. Iterative recalibration ensures that the solution agrees closely with the results from a full hydraulic simulation.

Keywords: water; scheduling; optimization; simulated annealing (search for similar items in EconPapers)
Date: 2004
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Citations: View citations in EconPapers (7)

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DOI: 10.1057/palgrave.jors.2601718

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