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Modelling framework for electromagnetic noise generation from traction motors
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Marcus Wallenberg Laboratoriet.
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Marcus Wallenberg Laboratoriet.ORCID-id: 0000-0002-3609-3005
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Marcus Wallenberg Laboratoriet.
2016 (Engelska)Ingår i: Journal of Notes on Numerical Fluid Mechanics and Multidisciplinary DesignArtikel i tidskrift (Övrigt vetenskapligt) Submitted
Abstract [en]

Electromagnetic noise from traction motors is often the single most dominating noise source from trains at low trainspeeds. This electromagnetic noise is tonal and annoying for both passengers on the train and people near the track andon the platform. A thorough understanding of the cause and the prediction of the electromagnetic noise is needed to beable to design low noise components. This paper describes a real time multi-physics modelling framework forprediction of the audible electromagnetic noise generated by traction motors fed by power converters. The cause of theelectromagnetic noise is influenced by several different domains. To be able to fully simulate the final acoustic sound,all these domains needs to be modelled and simulated together. Simulations of some relevant operational conditionsfor acoustic noise generation has been performed and discussed. Some of these results have been compared to realmeasurements from a converter fed traction motor.

Ort, förlag, år, upplaga, sidor
2016.
Nationell ämneskategori
Maskinteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-195741OAI: oai:DiVA.org:kth-195741DiVA, id: diva2:1045367
Anmärkning

QCR 20161114

Tillgänglig från: 2016-11-09 Skapad: 2016-11-09 Senast uppdaterad: 2016-12-22Bibliografiskt granskad
Ingår i avhandling
1. Modelling and simulation of electromagnetic audible noise generated by traction motors
Öppna denna publikation i ny flik eller fönster >>Modelling and simulation of electromagnetic audible noise generated by traction motors
2016 (Engelska)Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

An annoying tonal noise is produced by modern electrical trains duringacceleration and deceleration. This noise is caused by electromagneticforces generating structural vibrations, especially from the traction motors.The electromagnetic noise is dominant at low train speeds and affectsboth the passengers on the train and on platforms, as well as peopleliving near the track. The focus on this issue has increased the last years,both regarding legislation, contractual requirements and also because ofexpectations from citizens and travelers. To be able to design low noiseelectric drive systems, a thorough understanding of the cause and thepossibility to predict the electromagnetic noise is needed. This thesisdescribes the modelling and simulation of an complete multi-physicsreal-time environment for prediction and analysis of the electromagneticnoise. The simulation results are validated against measurements of thestructural vibration and acoustic response of a real traction motor fed bya power converter running in the entire operational range.

Ort, förlag, år, upplaga, sidor
Stockholm: KTH Royal Institute of Technology, 2016. s. 36
Serie
TRITA-AVE, ISSN 1651-7660 ; 2016:84
Nyckelord
Vibro-acoustics, Electromagnetic noise, traction motor, modal analysis, multi-physics
Nationell ämneskategori
Maskinteknik
Forskningsämne
Farkostteknik
Identifikatorer
urn:nbn:se:kth:diva-195746 (URN)978-91-7729-200-5 (ISBN)
Presentation
2016-12-14, E2, Lindstedtsvägen 3 (floor 3), KTH - Royal Institute of Technology, Stockholm, 10:00 (Engelska)
Handledare
Anmärkning

QC 20161118

Tillgänglig från: 2016-11-18 Skapad: 2016-11-09 Senast uppdaterad: 2016-11-23Bibliografiskt granskad

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Botling, FredrikLopez Arteaga, InesLeth, Siv
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