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Advanced iron-loss calculation as a basis for efficiency improvement of electrical machines in automotive application

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3 Author(s)
Simon Steentjes ; Institute of Electrical Machines, RWTH Aachen University, Germany, 52056, Schinkelstr. 4 ; Marc Leßmann ; Kay Hameyer

The accurate prediction of iron losses of soft magnetic materials for various frequencies and magnetic flux densities is eminent for an enhanced design of electrical machines in automotive applications. For this purpose different phenomeno-logical iron-loss models have been proposed describing the loss generating effects. Most of these suffer from poor accuracy for high frequencies as well as high values of magnetic flux densities. This paper presents a comparison of the common iron-loss models to an advanced iron-loss formula. The proposed IEM-Formula resolves the limitation of the common iron-loss models by introducing a high order term of the magnetic flux density. Exemplarily, the iron-loss formula is utilized to calculate the iron losses of an induction machine for the drive train of a full electric vehicle.

Published in:

Electrical Systems for Aircraft, Railway and Ship Propulsion (ESARS), 2012

Date of Conference:

16-18 Oct. 2012