2011 IEEE Energy Conversion Congress and Exposition 2011
DOI: 10.1109/ecce.2011.6063974
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Impact of the rotor back-iron resistivity on the rotor eddy-current losses in fractional-slot concentrated windings PM machines

Abstract: It is well known that in fractional-slot concentrated windings the eddy-current losses in the permanent magnets can be relevant and, for this reason, they must be evaluated in the machine design procedure. The paper investigates the influence of the rotor back-iron resistivity on the rotor eddy-current losses in this machine typology. In particular, a external rotor annulus shape PM machine with fractional-slot non-overlapping concentrated windings is considered. The machine is a scaled representative prototyp… Show more

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Cited by 7 publications
(1 citation statement)
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“…Since each block has an edge, which means that the temperature distribution of the permanent magnet is uneven, the demagnetization of the permanent magnet should be carefully considered. Reference [18] describes the influence of the resistivity of the iron ring at the back of the rotor on the eddy current loss of the rotor in a permanent magnet with an outer rotor ring permanent magnet and fractional slot-concentrated winding permanent magnet motor. In [19], the average loss of the permanent magnet of concentrated winding SPMSMs with different pole-slot matches was studied.…”
Section: Introductionmentioning
confidence: 99%
“…Since each block has an edge, which means that the temperature distribution of the permanent magnet is uneven, the demagnetization of the permanent magnet should be carefully considered. Reference [18] describes the influence of the resistivity of the iron ring at the back of the rotor on the eddy current loss of the rotor in a permanent magnet with an outer rotor ring permanent magnet and fractional slot-concentrated winding permanent magnet motor. In [19], the average loss of the permanent magnet of concentrated winding SPMSMs with different pole-slot matches was studied.…”
Section: Introductionmentioning
confidence: 99%