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Transactions of the Institute of Measurement and Control
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0142331208101487v1
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Time scaling in PID controller tuning

Derek P. Atherton

Department of Engineering and Design, University of Sussex, Falmer Brighton BN1 9QT, UK, d.p.atherton{at}sussex.ac.uk

Ali F. Boz

Sakarya University, Technical Education Faculty, Department of Electronics, 54187 Sakarya, Turkey

The paper examines the problem of tuning the parameters of a PID controller for the frequently assumed first-order plus dead time plant. The original contribution is to look at the problem from a time-scaling viewpoint so that the controller parameters can be given as a function of the time delay to time constant ratio. This enables the controller parameter results of different rules to be easily compared and reveals those that are not consistent under time scaling.

Key Words: controller • FOPDT plant • performance index • PID • time scaling.

This version was published on October 1, 2009

Transactions of the Institute of Measurement and Control, Vol. 31, No. 5, 425-433 (2009)
DOI: 10.1177/0142331208101487
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