Special Losses in Rotors of Electronically Commutated Brushless DC Motors Induced by Non-Uniformly Rotating Amature MMFS

Authors

A. K. Nagarkatti, Virginia Polytechnic Institute and State University
O. A. Mohammed, Virginia Polytechnic Institute and State UniversityFollow
Nabeel Demerdash, Marquette UniversityFollow

Document Type

Article

Language

eng

Publication Date

12-1982

Publisher

Institute of Electrical and Electronic Engineers (IEEE)

Source Publication

IEEE Transactions on Power Apparatus and Systems

Source ISSN

0018-9510

Abstract

This paper analyzes special eddy current losses induced in the rotor of an electronically commutated permanent magnet motor powered from a d.c. source, on account of the non-uniform rotation of the stator field. Formulas are established for the losses induced by the tangential component of the stator magnetic field. These formulas are applied to a specific motor design where the magnet retainment was accomplished by means of a metallic nonmagnetic stainless steel sleeve surrounding the rotor structure. The resulting losses are given with consequent conclusions.

Comments

IEEE Transactions on Power Apparatus and Systems, Vol. PAS-101, No. 12 (December 1982): 4502-4507. DOI.

N.A. Demerdash was affiliated with Virginia Polytechnic Institute and State University at the time of publication.

Recommended Citation

Nagarkatti, A. K.; Mohammed, O. A.; and Demerdash, Nabeel, "Special Losses in Rotors of Electronically Commutated Brushless DC Motors Induced by Non-Uniformly Rotating Amature MMFS" (1982). Electrical and Computer Engineering Faculty Research and Publications. 439.
https://epublications.marquette.edu/electric_fac/439