Two-harmonic Periodic Disturbance Compensation for Dead-Time Processes with Online Identification of Input Delay - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2022

Two-harmonic Periodic Disturbance Compensation for Dead-Time Processes with Online Identification of Input Delay

Abstract

As in the case of the Smith predictor, when applied to dynamical systems with delay in the input, the stability of the internal model control (IMC) system can be very sensitive to the mismatch that can occur between the plant delay and the identified delay. In this paper, we propose an online identification technique for the plant with input delay, which is used to adapt an IMC controller designed to reject periodic disturbances consisting of two harmonics. The proposed method is based on wavelet analysis and cross-correlation of the measured output. Moreover, the proposed controller structure introduces a novel analytical approach which makes it suitable for the adaptive application. The practical motivation of the study is to address the delay mismatch that can be caused by approximating time-varying high-order systems by first-order models with input delay. The approach is numerically validated.
Fichier principal
Vignette du fichier
Canada_2022_TDS_Official.pdf (490.15 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03820457 , version 1 (19-10-2022)

Identifiers

Cite

Adam Peichl, Michal Kuchar, Can Kutlu Yuksel, Silviu-Iulian Niculescu, Tomas Vyhlidal. Two-harmonic Periodic Disturbance Compensation for Dead-Time Processes with Online Identification of Input Delay. TDS 2022 - 17th IFAC Workshop on Time Delay Systems, Sep 2022, Montréal, Canada. ⟨10.1016/j.ifacol.2022.11.336⟩. ⟨hal-03820457⟩
36 View
99 Download

Altmetric

Share

Gmail Facebook X LinkedIn More