14th IFAC Symposium on System Identification, SYSID 2006

SYSID-2006 Paper Abstract

Close

Paper WeA4.6

Kinney, Charles (Univ. of California at San Diego), de Callafon, Raymond (Univ. of California, San Diego)

An Adaptive Internal Model-Based Controller for Periodic Disturbance Rejection

Scheduled for presentation during the Regular Session "Identification for Control" (WeA4), Wednesday, March 29, 2006, 12:10−12:30, Cummings Room

14th IFAC Symposium on System Identification, March 29 - 31, 2006, Newcastle, Australia

This information is tentative and subject to change. Compiled on July 17, 2018

Keywords Mechanical and Aerospace, Other

Abstract

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.