EAL, Institut für elektrische Antriebe und Leistungselektronik

Institut für elektrische Antriebe und Leistungselektronik

JKU, Johannes Kepler Universität Linz

Sprache: DE

Publikations Einzelansicht

Determination of the Cogging Torque Sensitivity of Brushless Permanent Magnet Machines due to Changes of the Material Characteristics of Ferromagnetic Components


Autor(en): Gerd Bramerdorfer, Peter Gangl, Armin Fohler, Ulrich Langer und Wolfgang Amrhein
Journal: Proceedings of the 7th IET International Conference on Power Electronics, Machines and Drives, Manchester, GB
Jahr: 2014
Monat: April
Seite(n): 6
Zusammenfassung: This article is about the cogging torque sensitivity of brushless permanent magnet machines. Thereby, the sensitivity calculation of the On-/Off-methodis used for determining the change of the cogging torque due to varying material behavior of the ferromagnetic parts of the motor. The results are obtained by using finite element calculations and the sensitivity is separately derived for each finite element. A practical example is examined, where two different machine designs are compared with respect to their nominal cogging torque values and their cogging torque changes for varying material characteristics. From the insights gained by this analysis it can be followed that sensitivity analyses will get more and more important for future machine design optimization.

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