Vibration control of large induction motors using actuators between motor feet and steel frame foundation

  • In the paper a theoretical analysis is deduced regarding vibration control of large induction motors – power rating >=1 MW – with roller bearings, using actuators between motor feet and a soft steel frame foundation. Based on a multibody model, the mathematical coherences are shown, including the feedback control system. Afterwards a numerical example of a soft mounted, converter driven, 2-pole induction motor (1.6 MW) with ball bearings is presented, where the bearing housing vibrations and the foundation vibrations are analyzed with and without control system. It could be shown, that without vibration control system the operating speed range cannot be used completely because of resonances, caused by the soft foundation. Therefore, critical speed areas occur, where steady state operation is not possible. However, with the vibration control system, the whole operating speed range can be used. The aim of the paper is to show the capability of using a vibration control system with actuators between motor feet and a soft foundation, forIn the paper a theoretical analysis is deduced regarding vibration control of large induction motors – power rating >=1 MW – with roller bearings, using actuators between motor feet and a soft steel frame foundation. Based on a multibody model, the mathematical coherences are shown, including the feedback control system. Afterwards a numerical example of a soft mounted, converter driven, 2-pole induction motor (1.6 MW) with ball bearings is presented, where the bearing housing vibrations and the foundation vibrations are analyzed with and without control system. It could be shown, that without vibration control system the operating speed range cannot be used completely because of resonances, caused by the soft foundation. Therefore, critical speed areas occur, where steady state operation is not possible. However, with the vibration control system, the whole operating speed range can be used. The aim of the paper is to show the capability of using a vibration control system with actuators between motor feet and a soft foundation, for avoiding off-limits areas for the operation speed of large induction motors.show moreshow less

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Metadaten
Author:Ulrich WernerORCiD
DOI:https://doi.org/10.1016/j.ymssp.2018.04.033
Parent Title (English):Mechanical Systems and Signal Processing
Publisher:Elsevier
Editor:ulrich wernerORCiD
Document Type:Article
Language:English
Date of first Publication:2018/05/03
Reviewed:Begutachtet/Reviewed
Release Date:2025/12/12
Tag:Active vibration control; Actuators; Induction motors; Steel frame foundation
Volume:112
Pagenumber:319-342
institutes:Institut für leistungselektronische Systeme ELSYS
Research Themes:Energie & Ressourcen
Licence (German):Keine Lizenz - Deutsches Urheberrecht gilt
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