2014 IEEE Conference and Expo Transportation Electrification Asia-Pacific (ITEC Asia-Pacific) 2014
Abstract: A prototype outer-rotor traction machine with Halbach magnetized permanent magnet structure is introduced. Concentrated fractional slot windings are used to obtain a larger winding factor. The performance studies of the prototype are presented by using tinite element analysis models. The flux distributions, torque capability and back emf are investigated. The experimental results match the analysis. The result shows that Halbach magnetized magnet and the fractional slot winding increase the back emf and torque…
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“…Nevertheless, surface-mounted PMSMs tend to experience elevated eddy current losses even when HBAs are used, especially at higher operating frequencies. Moreover, to improve the flux weakening capability of PM motors, concentrated tooth coil winding is used [8], which further increases the eddy current loss in the magnets. Certain measures may be implemented to keep these losses within a controllable range.…”
Section: Introductionmentioning
confidence: 99%
“…Nevertheless, surface-mounted PMSMs tend to experience elevated eddy current losses even when HBAs are used, especially at higher operating frequencies. Moreover, to improve the flux weakening capability of PM motors, concentrated tooth coil winding is used [8], which further increases the eddy current loss in the magnets. Certain measures may be implemented to keep these losses within a controllable range.…”
Section: Introductionmentioning
confidence: 99%
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