Resumo

ZAMARRON RAMIREZ, Antonio  e  RODRIGUEZ CARRERA, Salomón. Spatial Saliencies in Squirrel-Cage Induction Motors. Nova scientia [online]. 2010, vol.2, n.3, pp.94-108. ISSN 2007-0705.

This paper presents some spatial saliencies found in standard squirrel-cage induction motors. A technique for measuring and determining the magnitude of saliencies in induction machines by injecting a balanced, three-phase high frequency carrier signal is used. In addition, it is shown how a rotor position dependent saliencie can be created for estimating speed or rotor position at very low speed in sensorless operation of AC drives.

Palavras-chave : Induction motor; sensorless speed/position; high frequency carrier signal; spatial saliencies.