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Tuning of PID controllers for water networks—different approaches

Kumar, M. Prasanna and Kumar, M. S. Mohn (2009) Tuning of PID controllers for water networks—different approaches. In: Journal American Water Works Association, 101 (7). 95+.

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Better operational control of water networks can help reduce leakage, maintain pressure, and control flow. Proportional integral derivative (PID) controllers, with proper fine-tuning, can help water utility operators achieve targets faster without creating undue transients. The authors compared three tuning methods, in different test situations, involving flow and level control to different reservoirs. Although target values were reached with all three tuning methods, the methods’ performances varied significantly. The lowest performer among the three was the method most widely used in the industry—standard tuning by the Ziegler-Nichols method. Achieving better results was offline tuning by genetic algorithms. Achieving the best control, though, was a fuzzy logic–based online tuning approach—the FZPID controller. The FZPID controller had fewer overshoots and took significantly less time to tune the gains for each problem. This new tuning approach for PID controllers can be applied to a variety of problems and can increase the performance of water networks of any size and structure

Item Type: Journal Article
Additional Information: Copy rights of this article belongs to American Water Works Association.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Depositing User: Id for Latest eprints
Date Deposited: 31 Dec 2009 07:16
Last Modified: 31 Dec 2009 07:16
URI: http://eprints.iisc.ac.in/id/eprint/22078

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