Estimation of stray losses of skewed rotor induction motors using coupled 2-D and 3-D time stepping finite element methods

Journal Article · Tue Sep 01 04:00:00 EDT 1998 · IEEE Transactions on Magnetics

DOI:https://doi.org/10.1109/20.717726· OSTI ID:665282

Ho, S L; Wong, H C ^[1]; Fu, W N ^[2]

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1. Hong Kong Polytechnic Univ. (Hong Kong)
2. Shanghai Univ. (China). School of Automation

A precise estimation of stray losses in skewed rotor induction motors is an important and yet very challenging topic for machine designers. Methods for evaluating the stray losses in skewed rotor induction motors by coupling a 2-D multi-slice time stepping finite element model into a 3-D time stepping finite element method are presented in this paper. The model can take into account the inter-bar currents which are ignored if a 2-D finite element model only is used. New formulas, which are based on the actual changes in the magnetic flux densities and can be easily coupled into a time stepping finite element method for estimating the iron losses, are also described.

• OSTI ID: 665282
• Report Number(s): CONF-971159--
• Journal Information: IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 5Pt1 Vol. 34; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
ELECTRIC MOTORS
ENERGY LOSSES
FINITE ELEMENT METHOD
ROTORS
THREE-DIMENSIONAL CALCULATIONS
TWO-DIMENSIONAL CALCULATIONS