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Hierarchical Operation of Water Level Controllers: Formal Analysis and Application on a Large Scale Irrigation Canal

Author

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  • A. Sadowska
  • P.-J. Overloop
  • C. Burt
  • B. Schutter

Abstract

We introduce a hierachical controller, the purpose of which is to speed up the water delivery process as compared to the standard method applied currently in the field. The lower layer of the hierarchical control consists of local proportional integral filter controllers (PIF controllers) for upstream control at each gate; specifically they are proportional integral controllers with a low-pass filter. In contrast, the higher layer is composed of a centralized model-based predictive controller, which acts by controlling the head gate and by coordinating the local PIF controllers by modifying their setpoints when needed. The centralized controller is event-driven and is invoked only when there is a need for it (a water delivery request) and as such it contributes scarcely to the communication burden. The scheme is robust to temporary communication losses as the local PIF controllers are fully able to control the canal in their normal independent automatic upstream control mode until the communication links are restored. We discuss the application of the hierarchical controller to a precise numerical model of the Central California Irrigation District Main Canal. This shows the improved performance of the new hierarchical controller over the standard control method. Copyright Springer Science+Business Media Dordrecht 2014

Suggested Citation

  • A. Sadowska & P.-J. Overloop & C. Burt & B. Schutter, 2014. "Hierarchical Operation of Water Level Controllers: Formal Analysis and Application on a Large Scale Irrigation Canal," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 28(14), pages 4999-5019, November.
    • Handle: RePEc:spr:waterr:v:28:y:2014:i:14:p:4999-5019
    DOI: 10.1007/s11269-014-0785-x
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    Citations

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    Cited by:

    1. S. Hashemy Shahdany & J. Maestre & P. van Overloop, 2015. "Equitable Water Distribution in Main Irrigation Canals with Constrained Water Supply," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 29(9), pages 3315-3328, July.
    2. S. M. Hashemy Shahdany & A. R. Firoozfar, 2017. "Providing a Reliable Water Level Control in Main Canals under Significant Inflow Fluctuations at Drought Periods within Canal Automation," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 31(11), pages 3343-3354, September.
    3. José V. Aguilar & Pedro Langarita & José Rodellar & Lorenzo Linares & Klaudia Horváth, 2016. "Predictive control of irrigation canals – robust design and real-time implementation," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 30(11), pages 3829-3843, September.

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