Research Article

Reliable Fault Classification of Induction Motors Using Texture Feature Extraction and a Multiclass Support Vector Machine

Table 1

Description of induction motor faults.

Type of faultsFault description

Angular misalignment fault (AMF)Angular misalignment is the effective angle between the two shaft centerlines, the angle between the shaft centerlines is 0.48°

Broken rotor bar fault (BRBF)Among 34 rotor bars, 12 rotor bars are involved in the plastic deformation of the grinding furrow: 5 mm in diameter and 15 mm in depth

Parallel misalignment fault (PMF)The offset between two centerlines of the motor and load has been changed 0.1 mm

Rotor imbalance fault (RIF)Unbalance mass of 15.64 g cm is added at the right end of the rotor

Bearing fault (BF)A spalling on the outer race of the bearing is replicated

Bowed shaft fault (BSF)The shaft is slack in the middle (0.075 mm), which causes dynamic air-gap eccentricity

Phase imbalance fault (PIF)4.3  resistance is connected to one of the three-phase wires of the induction motor