DocumentCode
3060467
Title
Improving the accuracy of autotuning parameter estimates
Author
Atherton, Derek P.
Author_Institution
Sch. of Eng., Sussex Univ., Brighton, UK
fYear
1997
fDate
5-7 Oct 1997
Firstpage
51
Lastpage
56
Abstract
This paper discusses the inaccuracies involved in applying the describing function to obtaining plant information from autotuning measurements. Simple algorithms are given to improve the results for first order plus time delay plants (FOPTD). Attention is also drawn to the large errors which can occur when using autotuning for an unstable FOPTD plant
Keywords
delay systems; describing functions; limit cycles; parameter estimation; process control; relay control; tuning; autotuning; describing function; first order systems; limit cycles; parameter estimation; process control; relay control; time delay systems; unstable plant; Delay effects; Delay estimation; Error correction; Extraterrestrial measurements; Frequency measurement; Limit-cycles; Mathematical model; Parameter estimation; Relays; Tuning;
fLanguage
English
Publisher
ieee
Conference_Titel
Control Applications, 1997., Proceedings of the 1997 IEEE International Conference on
Conference_Location
Hartford, CT
Print_ISBN
0-7803-3876-6
Type
conf
DOI
10.1109/CCA.1997.627467
Filename
627467
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