Revista UIS Ingenierías

Vol. 17 No. 1 (2018): Revista UIS Ingenierías
Articles

Adaptive feedback feedforward compensation for disturbance rejection in a one DOF flexible structure: comparative analysis

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  • Efrain Guilermo Mariotte Parra,
  • Jabid Eduardo Quiroga Méndez
Efrain Guilermo Mariotte Parra
Universidad Pontificia Bolivariana, Bucaramanga
Jabid Eduardo Quiroga Méndez
UIS
DOI: https://doi.org/10.18273/revuin.v17n1-2018010

Published 2018-01-09

Keywords

  • Index terms –active vibration control,
  • fir adaptive filter,
  • the filtered-x least mean square,
  • recursive least square

How to Cite

Mariotte Parra, E. G., & Quiroga Méndez, J. E. (2018). Adaptive feedback feedforward compensation for disturbance rejection in a one DOF flexible structure: comparative analysis. Revista UIS Ingenierías, 17(1), 105–114. https://doi.org/10.18273/revuin.v17n1-2018010
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Abstract

In this paper an Active Vibrational Control (AVC) for a three-cart problem is studied. The Filtered-x Least Mean Square (FxLMS) and Recursive Least Square (RLS) algorithms are compared in terms of disturbance rejection, computational cost and control effort when a correlated measurement of the disturbance is available. The proposed RLS compensator considers a feedback coupling between the compensator and the disturbance. The secondary propagation path of the plant was estimated using normalized LMS (NLMS) algorithm. The internal positive coupling is modeled as a FIR filter estimated by the real plant parameters. Simulations showed a superior performance of RLS algorithm with a reasonable computer cost. The comparative analysis was performed comparing the tradeoff between the filter order and the magnitude of the rejection. 

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