Datum
2020Metadata
Zur Langanzeige
Buch
Link zu kassel university press
Modelling the Rotordynamics of Saturated Electrical Machines due to Unbalanced Magnetic Pull
Zusammenfassung
In the design of modern electrical drives a trend towards higher speeds and lighter structures can be observed. While increasing the power density this trend also implies stronger vibration issues. Among these phenomena lateral rotor oscillations due to unbalanced magnetic pull are of particular interest: strong lateral vibrations may lead to rotor-stator contact destroying the system in extreme cases. In this work an electromechanical model is established to describe such rotordynamic vibrations. It is applicable to all kinds of rotating field machines and captures arbitrary transient states. The model describes both currents and rotor motion in a fully coupled manner. It accounts for higher harmonics in the air-gap flux density, magnetic saturation and parallel branches in the winding. The model is validated by comparing it to finite element simulations, measurements and space vector models. The examples chosen are a cage induction machine and an permanent magnet synchronous machine. Using the model self-excited rotor oscillations have been investigated. Based on several simulation studies simple formulae for critical speeds concerning these vibrations have been established.
Zusätzliche Informationen
Zugleich: Dissertation, Universität Kassel, 2020Druckausgabe
Link zu kassel university press
Zitieren
@book{doi:10.17170/kobra-202010272016,
author={Boy, Felix},
title={Modelling the Rotordynamics of Saturated Electrical Machines due to Unbalanced Magnetic Pull},
publisher={kassel university press},
year={2020}
}
0500 Oax
0501 Text $btxt$2rdacontent
0502 Computermedien $bc$2rdacarrier
1100 2020$n2020
1500 1/eng
2050 ##0##http://hdl.handle.net/123456789/12086
3000 Boy, Felix
4000 Modelling the Rotordynamics of Saturated Electrical Machines due to Unbalanced Magnetic Pull / Boy, Felix
4030
4060 Online-Ressource
4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/12086=x R
4204 \$dBuch
4170
5550 {{Rotordynamik}}
5550 {{Anziehungskraft <Physik>}}
5550 {{Magnetismus}}
5550 {{Elektrische Maschine}}
5550 {{Exzentrizität}}
5550 {{Magnetischer Kreis}}
5550 {{Nichtlineare Dynamik}}
7136 ##0##http://hdl.handle.net/123456789/12086
<resource xsi:schemaLocation="http://datacite.org/schema/kernel-2.2 http://schema.datacite.org/meta/kernel-2.2/metadata.xsd"> 2020-12-04T07:54:36Z 2020-12-04T07:54:36Z 2020 doi:10.17170/kobra-202010272016 http://hdl.handle.net/123456789/12086 Zugleich: Dissertation, Universität Kassel, 2020 eng kassel university press Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International http://creativecommons.org/licenses/by-sa/4.0/ rotordynamics unbalanced magnetic pull electrial machiness eccentricity magnetic equivalent circuits nonlinear dynamics 620 Modelling the Rotordynamics of Saturated Electrical Machines due to Unbalanced Magnetic Pull Buch In the design of modern electrical drives a trend towards higher speeds and lighter structures can be observed. While increasing the power density this trend also implies stronger vibration issues. Among these phenomena lateral rotor oscillations due to unbalanced magnetic pull are of particular interest: strong lateral vibrations may lead to rotor-stator contact destroying the system in extreme cases. In this work an electromechanical model is established to describe such rotordynamic vibrations. It is applicable to all kinds of rotating field machines and captures arbitrary transient states. The model describes both currents and rotor motion in a fully coupled manner. It accounts for higher harmonics in the air-gap flux density, magnetic saturation and parallel branches in the winding. The model is validated by comparing it to finite element simulations, measurements and space vector models. The examples chosen are a cage induction machine and an permanent magnet synchronous machine. Using the model self-excited rotor oscillations have been investigated. Based on several simulation studies simple formulae for critical speeds concerning these vibrations have been established. open access Boy, Felix XIII, 283 Seiten Kassel 978-3-7376-0916-6 Rotordynamik Anziehungskraft <Physik> Magnetismus Elektrische Maschine Exzentrizität Magnetischer Kreis Nichtlineare Dynamik publishedVersion true https://www.genialokal.de/Produkt/Felix-Boy/Modelling-the-Rotordynamics-of-Saturated-Electrical-Machines-due-to-Unbalanced-Magnetic-Pull_lid_44489421.html 49,00 Naturwissenschaft, Technik, Informatik, Medizin Dissertation FB 15 / Maschinenbau Softcover DIN A 5 </resource>
Die folgenden Lizenzbestimmungen sind mit dieser Ressource verbunden:
Solange nicht anders angezeigt, wird die Lizenz wie folgt beschrieben: Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International