Optimisation of pump and valve schedules in complex large-scale water distribution systems using GAMS modelling language

Date

2013-09-04

Advisors

Journal Title

Journal ISSN

ISSN

DOI

Volume Title

Publisher

Procedia Engineering, Elsevier

Type

Conference

Peer reviewed

Yes

Abstract

This paper considers optimisation of pump and valve schedules in complex large-scale water distribution networks (WDN). An optimisation model is automatically generated in GAMS language from a hydraulic model in EPANET format and from additional files describing operational constraints, electricity tari s and pump station configurations. The paper describes how each hydraulic component is modelled. To reduce the size of the optimisation problem the full hydraulic model is simplified using module reduction algorithm, while retaining the nonlinear characteristics of the model. Subsequently, a nonlinear programming solver CONOPT is used to solve the optimisation model. The proposed approached was tested on a large-scale WDN model provided in EPANET format. The considered WDN included complex structures and interactions between pump stations. Solving of several scenarios considering di erent horizons, time steps, operational constraints and topological changes demonstrated ability of the approach to automatically generate and solve optimisation problems for variety of requirements.

Description

Keywords

Pump scheduling, Energy and leakage reduction, Nonlinear optimisation, Large-scale WDN optimisation, GAMS

Citation

Skworcow,P., Paluszczyszyn, D., Ulanicki, B., Rudek, R. and Belrain, T. (2013) Optimisation of pump and valve schedules in complex large-scale water distribution systems using GAMS modelling language. 12th International Conference on Computing and Control for the Water Industry, CCWI2013, Perugia, Italy, 4-6 September 2013, Procedia Engineering 00 (2013) 000–000.

Rights

Research Institute

Institute of Artificial Intelligence (IAI)