Extended model of fundamental wave iron losses in a permanent magnet servomotor

Conference: IKMT 2015 - 10. ETG/GMM-Fachtagung Innovative Klein- und Mikroantriebstechnik
09/14/2015 - 09/15/2015 at Köln, Deutschland

Proceedings: ETG-Fb. 146: IKMT 2015

Pages: 6Language: englishTyp: PDF

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Brechtefeld, Frank; Schmitt, Klaus-Dieter (Schneider Electric Automation GmbH, Niederschopfheim, Germany)

The ability to calculate the fundamental wave iron losses is required for the prediction of a servomotor’s efficiency at different operating points. In this paper we propose an extended iron loss model which yields the fundamental wave iron losses of the motor as a function of motor speed, current and magnet temperature. The parameters of the extended model are determined by a statistical fit of the model to measurement data. Measurements at different cooling levels are required in order to determine the model parameters correctly.