Two-harmonic Periodic Disturbance Compensation for Dead-Time Processes with Online Identification of Input Delay
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00362335" target="_blank" >RIV/68407700:21220/22:00362335 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.ifacol.2022.11.336" target="_blank" >https://doi.org/10.1016/j.ifacol.2022.11.336</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ifacol.2022.11.336" target="_blank" >10.1016/j.ifacol.2022.11.336</a>
Alternative languages
Result language
angličtina
Original language name
Two-harmonic Periodic Disturbance Compensation for Dead-Time Processes with Online Identification of Input Delay
Original language description
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.
Czech name
—
Czech description
—
Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
20205 - Automation and control systems
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of 17th IFAC Workshop on Time Delay Systems
ISBN
—
ISSN
2405-8963
e-ISSN
2405-8963
Number of pages
6
Pages from-to
73-78
Publisher name
IFAC
Place of publication
Laxenburg
Event location
Montreal
Event date
Sep 27, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000899369400013