Control of water distribution networks with dynamic DMA topology using strictly feasible sequential convex programming

The operation of water distribution networks (WDN) with a dynamic topology is a recently pioneered approach for the advanced management of District Metered Areas (DMAs) that integrates novel developments in hydraulic modeling, monitoring, optimization, and control. A common practice for leakage mana...

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Veröffentlicht in:Water resources research Jg. 51; H. 12; S. 9925 - 9941
Hauptverfasser: Wright, Robert, Abraham, Edo, Parpas, Panos, Stoianov, Ivan
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Washington Blackwell Publishing Ltd 01.12.2015
John Wiley & Sons, Inc
Schlagworte:
dynamic topology
flow modulation
Hydraulics
Optimization
pressure management
Topology
Valves
Water distribution
water distribution networks
ISSN:0043-1397, 1944-7973
Online-Zugang:Volltext
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Zusammenfassung:The operation of water distribution networks (WDN) with a dynamic topology is a recently pioneered approach for the advanced management of District Metered Areas (DMAs) that integrates novel developments in hydraulic modeling, monitoring, optimization, and control. A common practice for leakage management is the sectorization of WDNs into small zones, called DMAs, by permanently closing isolation valves. This facilitates water companies to identify bursts and estimate leakage levels by measuring the inlet flow for each DMA. However, by permanently closing valves, a number of problems have been created including reduced resilience to failure and suboptimal pressure management. By introducing a dynamic topology to these zones, these disadvantages can be eliminated while still retaining the DMA structure for leakage monitoring. In this paper, a novel optimization method based on sequential convex programming (SCP) is outlined for the control of a dynamic topology with the objective of reducing average zone pressure (AZP). A key attribute for control optimization is reliable convergence. To achieve this, the SCP method we propose guarantees that each optimization step is strictly feasible, resulting in improved convergence properties. By using a null space algorithm for hydraulic analyses, the computations required are also significantly reduced. The optimized control is actuated on a real WDN operated with a dynamic topology. This unique experimental program incorporates a number of technologies set up with the objective of investigating pioneering developments in WDN management. Preliminary results indicate AZP reductions for a dynamic topology of up to 6.5% over optimally controlled fixed topology DMAs. Key Points: A novel approach for the operation of water distribution networks A novel optimization method with reliable convergence for valve control Hydraulic data demonstrating the optimization method and operations approach
Bibliographie:Cla-Val Ltd
Bristol Water plc
ArticleID:WRCR21821
Supporting Information S1Data Set S1Data Set S2
Evidence-based Healthcare Collaborating Agency)?>NEC-Imperial
ark:/67375/WNG-31QTZ83F-K
istex:50743AA09608109590B908D23314E269A3112B21
This article was corrected on 12 JAN 2016. See the end of the full text for details.
Engineering and Physical Sciences Research Council
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ISSN:0043-1397
1944-7973
DOI:10.1002/2015WR017466