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A range of features of sensor signals have been proposed as fault indicators for the detection of rotor eccentricity faults in induction motors. In previous studies, experimental investigation of the behavior of these features in relation to static eccentricity faults have only been performed for a limited range of load levels and fault severities. This has resulted in an incomplete understanding...
A significant number of studies have been reported in the literature on the detection of eccentricity faults in induction machines; however these have generally used one type of sensor such as current or vibration, and not studied in detail the effect of loading. This paper examines the use of fault frequency components in the current, flux and vibration sensor signals with the aim of both detecting...
This paper presents results of a general analysis of the radial force production capabilities of bearingless induction, synchronous reluctance and surface-mounted permanent magnet motors using the same stator. A specific analysis is performed for a 2.2 kW commercial ac motor stator. The conclusions from this analysis are used in the design of the two-pole and four-pole stator windings for this stator...
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