Faggion, adriano - Fornasiero, Emanuele - Bianchi, Nicola - Bolognani, Silverio (2011) Sensorless Capability of Fractional-Slot Surface-Mounted PM Motors. In: IEEE - IEMDC 2011 International Electric Machines and Drives Conference, 15-18 May 2011, Niagara Falls.
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Abstract—This paper compares two motors as regard their
behaviour during sensorless rotor position detection by means of
injection of a high frequency signal. The motors are characterized
by the presence of a ring around each pole and by different
windings: a distributed coil winding and a concentrated coil
winding. The effect of eddy currents in the magnets, due to the
high frequency signal, is also considered. The effect of the slot
opening is also taken in consideration. Finally, the comparison
with two different PM rotor topologies, an interior PM motor
and a INSET motor, is addressed.
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