Biased Sinusoidal Disturbance Compensation With Unknown Frequency

Author

Fedele, Giuseppe ; Ferrise, Andrea

Author_Institution

Dept. of Inf., Modeling, Electron. & Syst. Eng., Univ. of Calabria, Rende, Italy

Volume

58

Issue

12

fYear

2013

fDate

Dec. 2013

Firstpage

3207

Lastpage

3212

Abstract

This note combines an adaptive frequency estimation scheme with a fractional-order controller for unknown biased sinusoidal disturbance rejection. The disturbance is estimated via an adaptive orthogonal signals generator based on a third-order generalized integrator. A fractional-order controller is designed which guarantees the closed-loop stability of the system if the location of the plant frequency response, at the estimated frequencies, lies in an half-plane passing through the origin of the complex plane.

Keywords

closed loop systems; control system synthesis; frequency estimation; frequency response; stability; waveform generators; adaptive frequency estimation scheme; adaptive orthogonal signal generator; biased sinusoidal disturbance compensation; biased sinusoidal disturbance rejection; closed-loop stability; fractional-order controller; plant frequency response; third-order generalized integrator; Asymptotic stability; Frequency control; Frequency estimation; Noise; Resonant frequency; Stability analysis; Transfer functions; Disturbance rejection; fractional controllers; orthogonal signals generator; sinusoidal parameters estimation;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/TAC.2013.2261656

Filename

6513283