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Permanent magnet synchronous motor (PMSM) is currently the most attractive application electric machine for several industrial applications. It has obtained widespread application in motor drives in recent time. However, different types of faults are unavoidable in such motors. This paper focuses on stator winding faults diagnosis. This paper proposes the ratio of third harmonic to fundamental FFT...
The paper proposes diagnostic technique for identifying rotor broken bar in speed sensorless three-phase induction motor drive system. Experimental data is collected for healthy and faulty motor with two rotor broken bar. The collected data is first processed using Wavelet packet 1-D transformation to extract the statistical information. The statistical information thus obtained is used to train the...
Incipient fault detection of electrical machine is a challenging task and requires intelligent diagnostic approach. Huge research effort is put to automate the fault diagnostic schemes. Among several causes of electrical machine failure the most frequent occurring fault is the mechanical bearing failure. Thus this paper present on-line diagnostic technique for incipient bearing failure in an inverter...
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