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State Variable Implications on Hydraulic State Estimation

Author

Listed:
  • Emilio Ruiz

    (University of Castilla-La Mancha)

  • Sarai Díaz

    (University of Castilla-La Mancha)

  • Javier González

    (University of Castilla-La Mancha
    Hydraulics Laboratory University of Castilla-La Mancha)

Abstract

Hydraulic State Estimation allows to estimate the most likely state of a water supply network considering multiple sources of information and their associated uncertainty. It is set out as an optimization problem, often addressed according to the Weighted Least Squares criterion. It can be formulated differently depending on the selected set of state variables. This choice is not straightforward and leads to different problem dimensions, time complexities and convergence behavior. All possible essential approaches are gathered in this work and two are identified as the most suitable according to the resulting problem dimensions: a head-based approach and a demand-based approach. The particularities and the formulation according to both sets of state variables are discussed, seeking for efficient implementation. Their time complexity and convergence behavior are compared to draw conclusions that help to identify the most suitable approach for real practice applications.

Suggested Citation

  • Emilio Ruiz & Sarai Díaz & Javier González, 2022. "State Variable Implications on Hydraulic State Estimation," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 36(8), pages 2549-2569, June.
    • Handle: RePEc:spr:waterr:v:36:y:2022:i:8:d:10.1007_s11269-022-03152-x
    DOI: 10.1007/s11269-022-03152-x
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    References listed on IDEAS

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    1. Cristiana Bragalli & Matteo Fortini & Ezio Todini, 2016. "Enhancing Knowledge in Water Distribution Networks via Data Assimilation," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(11), pages 3689-3706, September.
    2. Emilio Ruiz & Sarai Díaz & Javier González, 2022. "Potential Performance of Hydraulic State Estimation in Water Distribution Networks," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 36(2), pages 745-762, January.
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