Modelling the Rotordynamics of Saturated Electrical Machines due to Unbalanced Magnetic Pull

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dc.date.accessioned2020-12-04T07:54:36Z
dc.date.available2020-12-04T07:54:36Z
dc.date.issued2020
dc.descriptionZugleich: Dissertation, Universität Kassel, 2020ger
dc.identifierdoi:10.17170/kobra-202010272016
dc.identifier.urihttp://hdl.handle.net/123456789/12086
dc.language.isoengeng
dc.publisherkassel university press
dc.publisher.placeKassel
dc.relation.isbn978-3-7376-0916-6
dc.rightsNamensnennung - Weitergabe unter gleichen Bedingungen 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-sa/4.0/*
dc.subjectrotordynamicseng
dc.subjectunbalanced magnetic pulleng
dc.subjectelectrial machinesseng
dc.subjecteccentricityeng
dc.subjectmagnetic equivalent circuitseng
dc.subjectnonlinear dynamicseng
dc.subject.ddc620
dc.subject.swdRotordynamikger
dc.subject.swdAnziehungskraft <Physik>ger
dc.subject.swdMagnetismusger
dc.subject.swdElektrische Maschineger
dc.subject.swdExzentrizitätger
dc.subject.swdMagnetischer Kreisger
dc.subject.swdNichtlineare Dynamikger
dc.titleModelling the Rotordynamics of Saturated Electrical Machines due to Unbalanced Magnetic Pulleng
dc.typeBuch
dc.type.versionpublishedVersion
dcterms.abstractIn 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.eng
dcterms.accessRightsopen access
dcterms.creatorBoy, Felix
dcterms.extentXIII, 283 Seiten
kup.bindingSoftcover
kup.institutionFB 15 / Maschinenbau
kup.iskuptrue
kup.orderhttps://www.genialokal.de/Produkt/Felix-Boy/Modelling-the-Rotordynamics-of-Saturated-Electrical-Machines-due-to-Unbalanced-Magnetic-Pull_lid_44489421.html
kup.price49,00
kup.sizeDIN A 5
kup.subjectNaturwissenschaft, Technik, Informatik, Medizin
kup.typDissertation

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