Eddy-current losses in the permanent magnets of a PM machine

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Eddy-current losses in the permanent magnets of a PM machine

Journal Article (1997)

Author(s)

H. Polinder (TU Delft - Mechanical Engineering)

M. J. Hoeijmakers (TU Delft - Electrical Power Processing)

Research Group

Transport Engineering and Logistics

DOI related publication

https://doi.org/10.1049/cp:19971054 Final published version

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https://resolver.tudelft.nl/uuid:bc01c05f-36e8-4c7d-9764-68fefb6536f8

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Publication Year

1997

Language

English

Research Group

Transport Engineering and Logistics

Journal title

IEE Conference Publication

Issue number

444

Pages (from-to)

138-142

Event

Proceedings of the 1997 8th International Conference on Electrical Machines and Drives (1997-09-01 - 1997-09-03), Cambridge, UK

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49

Abstract

A gas turbine driven, high-speed, high-efficiency generator system intended for use in series-hybrid vehicles is developed. It consists of a permanent-magnet (PM) generator and a rectifier. The eddy-current loss in the magnets of the high-speed PM generator may be problematic. Therefore, a model of the PM machine including this loss in the magnets due to the time harmonics of the stator currents is introduced and verified. This loss can be represented by magnet loss resistances in the equivalent circuits. It can be decreased by using smaller magnets or by using sinusoidal stator currents.