PFC-Based Control of Friction-Induced Instabilities in Drive Systems

This paper is concerned with control-based damping of friction-induced self-excited oscillations that appear in electromechanical systems with an elastic shaft. This approach does not demand additional oscillations measurements or an observer design. The control system provides the angular velocity...

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Main Authors: Ievgen Golovin, Stefan Palis
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Machines
Subjects:
Online Access:https://www.mdpi.com/2075-1702/9/7/134
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author Ievgen Golovin
Stefan Palis
author_facet Ievgen Golovin
Stefan Palis
author_sort Ievgen Golovin
collection DOAJ
description This paper is concerned with control-based damping of friction-induced self-excited oscillations that appear in electromechanical systems with an elastic shaft. This approach does not demand additional oscillations measurements or an observer design. The control system provides the angular velocity and damping control via the combination of a parallel feed-forward compensator (PFC) and adaptive <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>λ</mi></semantics></math></inline-formula>-tracking feedback control. The PFC is designed to stabilize the zero dynamics of an augmented system and renders it almost strict positive real (ASPR). The proposed control approach is tested in simulations.
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spelling doaj.art-1627f2a7506747f089025b278193ae452023-11-22T04:13:51ZengMDPI AGMachines2075-17022021-07-019713410.3390/machines9070134PFC-Based Control of Friction-Induced Instabilities in Drive SystemsIevgen Golovin0Stefan Palis1Institute for Automation Engineering, Otto von Guericke University Magdeburg, 39106 Magdeburg, GermanyInstitute for Automation Engineering, Otto von Guericke University Magdeburg, 39106 Magdeburg, GermanyThis paper is concerned with control-based damping of friction-induced self-excited oscillations that appear in electromechanical systems with an elastic shaft. This approach does not demand additional oscillations measurements or an observer design. The control system provides the angular velocity and damping control via the combination of a parallel feed-forward compensator (PFC) and adaptive <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>λ</mi></semantics></math></inline-formula>-tracking feedback control. The PFC is designed to stabilize the zero dynamics of an augmented system and renders it almost strict positive real (ASPR). The proposed control approach is tested in simulations.https://www.mdpi.com/2075-1702/9/7/134parallel feed-forward compensatorλ-tracking controlfriction-induced oscillationsvelocity control
spellingShingle Ievgen Golovin
Stefan Palis
PFC-Based Control of Friction-Induced Instabilities in Drive Systems
Machines
parallel feed-forward compensator
λ-tracking control
friction-induced oscillations
velocity control
title PFC-Based Control of Friction-Induced Instabilities in Drive Systems
title_full PFC-Based Control of Friction-Induced Instabilities in Drive Systems
title_fullStr PFC-Based Control of Friction-Induced Instabilities in Drive Systems
title_full_unstemmed PFC-Based Control of Friction-Induced Instabilities in Drive Systems
title_short PFC-Based Control of Friction-Induced Instabilities in Drive Systems
title_sort pfc based control of friction induced instabilities in drive systems
topic parallel feed-forward compensator
λ-tracking control
friction-induced oscillations
velocity control
url https://www.mdpi.com/2075-1702/9/7/134
work_keys_str_mv AT ievgengolovin pfcbasedcontroloffrictioninducedinstabilitiesindrivesystems
AT stefanpalis pfcbasedcontroloffrictioninducedinstabilitiesindrivesystems