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Axial Magnetic Fields, Axial Force, and Losses in the Stator Core and Clamping Structure of a Synchronous Generator with Axially Displaced Stator
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
2017 (English)In: Electric power components and systems, ISSN 1532-5008, E-ISSN 1532-5016, Vol. 45, no 4, 410-419 p.Article in journal (Refereed) Published
Abstract [en]

Axial displacement of the stator in a synchronous machine gives rise to axial magnetic field both at the ends and deep inside the stator. The axial magnetic field causes losses. This article contains results from two studies with an axially displaced stator. In the first study, axial magnetic leakage fields in the ends of a small synchronous generator at load and no load were measured and simulated. In the second study, axial force and iron losses at no load were calculated with non-linear materials and a three-dimensional, time-stepped finite element method. For some machines with vertical shafts, the sum of iron losses and thrust bearing losses can be reduced if the rotor is lowered or the stator raised, whichever is best.

Place, publisher, year, edition, pages
TAYLOR & FRANCIS INC , 2017. Vol. 45, no 4, 410-419 p.
Keyword [en]
axial magnetic field, axial force, losses, synchronous generator, finite element analysis
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:uu:diva-319683DOI: 10.1080/15325008.2016.1266062ISI: 000397048400005OAI: oai:DiVA.org:uu-319683DiVA: diva2:1087449
Available from: 2017-04-07 Created: 2017-04-07 Last updated: 2017-04-07Bibliographically approved

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Citation style
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