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BESANCON-VODA, A., BLAHA, P.
Original Title
Relay Feedback Experiment for Coulomb Friction Identification
Type
conference paper
Language
English
Original Abstract
The paper shows that feedback relay experiment can be used not only for automatic tuning of PID controllers, but also for identifying some relay nonlinearity of the plant. It considers systems in uenced by an inherent relay andcontrolled by another relay introduced in feedback. Frequency behaviour of this two-relay system configuration is reported - the inherent relay models Coulomb friction and the other controls the system's output and produces limit cycles. The first harmonic approximation by means of the describing function yields an algorithm for the estimation of Coulomb friction tested on illustrative examples.
Keywords
relay feedback, describing function, limit cycles, Coulomb friction
Authors
RIV year
2002
Released
5. 4. 2000
Publisher
Vapor Universitari
Location
Barcelona, Spain
ISBN
0-08-043624-2
Book
Past, Present and Future of PID Control
Pages from
123
Pages to
128
Pages count
6
BibTex
@inproceedings{BUT4569, author="Alina {Besancon-Voda} and Petr {Blaha}", title="Relay Feedback Experiment for Coulomb Friction Identification", booktitle="Past, Present and Future of PID Control", year="2000", pages="6", publisher="Vapor Universitari", address="Barcelona, Spain", isbn="0-08-043624-2" }