Analytical prediction of rotor eddy current loss due to stator slotting in PM machines
Date
2001-08
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE Xplore
Abstract
Certain types of PM electric machines are
particularly susceptible to the proliferation of eddy currents
flowing within the solid conducting regions in the rotor.
These eddy currents can be induced by current winding
harmonics, but also by the interaction of the static rotor
magnetic field with the permeance variation of the slotted
stator known as ‘slotting’. This work focuses on the analytical
calculation of eddy current loss that occurs in the conducting
regions within a rotor under no-load conditions. The results
are compared with finite element analysis and measured
results from a machine test. Good agreement is achieved
between the three methods of comparison.
Description
Paper presented during the 2010 IEEE Conference, Electrical Machines and Systems, 2001. ICEMS 2001, Shenyang . The original publication is available at http://research.ee.sun.ac.za/emr/files/u1/2010-ECCE-Wills.pdf and also http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=971799&tag=1
Wills, D. A. & Kamper, M. J.2010. Analytical prediction of rotor eddy current loss due to stator slotting in PM machines, in Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference, 2:806 - 809, doi:10.1109/ICEMS.2001.971799.
Wills, D. A. & Kamper, M. J.2010. Analytical prediction of rotor eddy current loss due to stator slotting in PM machines, in Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference, 2:806 - 809, doi:10.1109/ICEMS.2001.971799.
Keywords
Permanent magnet motors, Electric motors, Eddy currents (Electric), Rotors