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A stator winding fault in one phase of induction motor (IM) gives rise to higher harmonics distortion, increased torque ripple, temperature rise in the magnetic material, mechanical vibrations due to varying magnetic forces and magnetic noise. The fault leads to a change in the electromagnetic field generated in the motor as compared to the normal operation of motor. The copper losses generated in...
Battery electric vehicle (BEV) technology is the most often used type of EV due to its reliable energy storage system. According to the different driving cycles of EVs, electric motors undergo degradation as a result of sudden variations in the dynamic state of torque. Therefore, reliability and performance assessment of the electric motor are important. This paper presents transient and harmonic...
The prediction of induction machine performance has traditionally been based on the constant parameter models. This approach was later replaced by considering saturation in the main flux paths. However, such models have not been sufficiently accurate for certain transient conditions such as on-line starting and short-circuit. So, an accurate study of their performance should necessarily consider the...
This paper deals with detecting defects in a multistage gearbox. The gearbox is driven by an induction motor and the output shaft of the gearbox is connected to a DC generator and a DC tacho-generator. The ripple current and voltage signals supplied by these generators are analyzed for a defect-free gearbox and a defective gearbox with two teeth missing in a particular gear. Multiresolution Fourier...
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