Calibration and Reliability in Groundwater Modelling: Credibility of Modelling

(Proceedings of ModelCARE 2007 Conference, held in Denmark, September 2007). IAHS Publ. 320, 2008, 89-94.

Real time control of a well field

Gero bauser¹, Harrie-Jan Hendricks Franssen¹,
Wolfgang Kinzelbach¹ & Hans-Peter Kaiser²

1 Institute of Environmental Engineering, Wolfgang-Pauli-Strasse 15, Swiss Federal Institute of Technology,
ETH Hönggerberg, 8093 Zürich, Switzerland

bauser@ifu.baug.ethz.ch

2 Wasserversorgung Zürich, Hardhof 9, Postfach, 8023 Zürich, Switzerland

Abstract A concept for the real-time control of a drinking water well field with the help of a numerical groundwater flow model and piezometric head measurements is presented. The aim of the optimal control is to reduce the risk of pumping contaminated groundwater. The concept was tested for a short time period with historical data for the groundwater wells in the Hardhof area of the city of Zurich. Simulation runs for system elements are based on fuzzy logic control concept (FLC). The fuzzy controllers for each facility element are optimised. The example illustrates a hierarchical control and optimisation approach.

Key words groundwater flow model; water resources management; drinking water wells; fuzzy logic control; hierarchical control