Title :
Sensorless capability of fractional-slot surface-mounted PM motors
Author :
Faggion, Adriano ; Fornasiero, Emanuele ; Bianchi, Nicola ; Bolognani, Silverio
Author_Institution :
Dept. of Electr. Eng., Univ. of Padova, Padova, Italy
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.
Keywords :
coils; eddy currents; machine windings; permanent magnet motors; rotors; INSET motor; PM rotor topology; concentrated coil winding; distributed coil winding; eddy current effect; fractional-slot surface-mounted PM motor; high frequency signal injection; interior PM motor; interior permanent magnet motor; machine winding; sensorless rotor position detection; Coils; Couplings; Inductance; Permanent magnet motors; Rotors; Synchronous motors; Windings;
Conference_Titel :
Electric Machines & Drives Conference (IEMDC), 2011 IEEE International
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4577-0060-6
DOI :
10.1109/IEMDC.2011.5994876
