AN ADAPTIVE INTERNAL MODEL-BASED CONTROLLER FOR PERIODIC DISTURBANCE REJECTION

This paper details the design of an adaptive internal model-based controller to attenuate periodic disturbances in the presence of random noise. The internal model-based controller is designed in two steps, making use of the separation principle to design a controller with the desired properties tha...

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Bibliographic Details
Published inIFAC Proceedings Volumes Vol. 39; no. 1; pp. 273 - 278
Main Authors Kinney, C.E., de Callafon, R.A.
Format Journal Article
LanguageEnglish
Published 2006
Subjects
Active Noise Control
Adaptive Control
Disturbance Rejection
Feedback Control
Frequency Estimation
Feedback Control
Disturbance Rejection
Frequency Estimation
Adaptive Control
Active Noise Control
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Summary:This paper details the design of an adaptive internal model-based controller to attenuate periodic disturbances in the presence of random noise. The internal model-based controller is designed in two steps, making use of the separation principle to design a controller with the desired properties that stabilizes the closed-loop system. Periodic disturbances appear as harmonics of a fundamental frequency. The fundamental frequency of the disturbance is estimated with a magnitude/phase-locked loop and is used to adjust the parameters of the controller, specifically the natural frequency of the internal model and the feedback gain. An active noise control study shows the ability of the proposed method to cancel time varying disturbances in an acoustic system.
ISSN:1474-6670
DOI:10.3182/20060329-3-AU-2901.00038