Generalized Relay Shifting Method for System Identification
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stať ve sborníkuconference paper
Peer-reviewed
publishedVersion
Author
Hofreiter M.
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Creative Commons Attribution-NonCommercial-NoDerivs (CC BY-NC-ND) 4.0http://creativecommons.org/licenses/by-nc-nd/4.0/
openAccess
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The paper describes an improved relay identification method, which enables the estimation of the parameters of a transfer function with various structures (stable, unstable, non-minimum phase, integrating, time delay systems, etc.) from a single relay feedback test. This identification approach follows the original shifting method and offers new possibilities. The proposed identification is demonstrated on a very versatile second-order time-delayed model and on systems with different structures. The proposed approach can be used for the tuning of PID controllers. The shifting method was implemented into a PLC Tecomat Foxtrot and used to control the laboratory apparatuses called “Air Aggregate”, “Water Levitation” and “Air Levitation”
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