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No-load electromagnetic simulations of a hydropower generator considering the effect of rotor whirling
Department of Mechanical and Production Engineering, University of Mauritius, Réduit, 80837, Mauritius.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.ORCID iD: 0000-0001-6016-6342
Department of Electrical Engineering and Computer Science, Milwaukee School of Engineering, Milwaukee, Wisconsin, 53202, USA.
2015 (English)In: Balkan Journal of Electrical and Computer Engineering, ISSN 2147-284X, Vol. 3, no 3, p. 124-134Article in journal (Refereed) Published
Abstract [en]

Electromagnetic (EM) analysis of hydropower generators iscommon practice but there is little emphasis on studying the effect of rotorwhirling in the analysis. This paper explores the effect on electromagneticanalysis as the rotor is allowed to whirl both in forward and inbackward directions under no-load conditions. As a hydropower generatorrotor shaft can experience whirling when under eccentric operation,the objective is to examine how whirling can affect the unbalancedmagnetic pull (UMP), flux densities, damper currents, and ohmic lossesin a synchronous hydropower generator. These results are obtained ina commercial FEM-based EM field modelling software package thatallows various degrees of freedom in motion types and multiple motioncomponents to be set. It is seen that backward whirling tends to inducehigher eddy currents than forward whirling does.

Place, publisher, year, edition, pages
2015. Vol. 3, no 3, p. 124-134
National Category
Applied Mechanics Other Mechanical Engineering
Research subject
Solid Mechanics; Computer Aided Design
Identifiers
URN: urn:nbn:se:ltu:diva-5542DOI: 10.17694/bajece.39215Local ID: 3ab0fc16-b92b-43f4-81d1-255f1d2ec360OAI: oai:DiVA.org:ltu-5542DiVA, id: diva2:978416
Note

Godkänd; 2016; 20150702 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2023-09-08Bibliographically approved

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Calleecharan, YogeshwarsingAidanpää, Jan-Olov

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CiteExportLink to record
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  • apa
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  • nn-NO
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Output format
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