EURO 2024 Copenhagen
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559. Bi-objective valve placement and control in an operational water distribution network using a hybrid evolutionary-deterministic method

Invited abstract in session TC-37: Multiobjective Mixed-Integer Nonlinear Optimization, stream Multiobjective Optimization.

Tuesday, 12:30-14:00
Room: 33 (building: 306)

Authors (first author is the speaker)

1. Aly-Joy Ulusoy
Civil and Environmental Engineering, Imperial College London

Abstract

We consider the valve placement and control problem, which consists in simultaneously determining the location and settings of new pressure control valves in water distribution networks for the optimization of performance (here, leakage reduction) at minimum cost. We present a hybrid method combining the complementary advantages of non-linear programming solvers and evolutionary algorithms to solve the resulting non-convex bi-objective mixed-integer non-linear program. The performance of the proposed algorithm is first evaluated on small case study networks from the literature. Our results show that the proposed hybrid method converges quickly to a good approximation of the Pareto front of the corresponding valve placement and control problems. Next, the hybrid method is applied to a large-scale operational network from the UK and obtained solutions are compared to the locations of existing pressure control valves (determined based on engineering judgement).

Keywords

Status: accepted

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