A monitoring method based on Dynamic Time Warping (DTW) for the incipient broken rotor bar fault is proposed. The method can suppress the fundamental frequency signal of the stator current. Firstly, a reference signal is generated by the cross-correlation function, and the reference signal with the same frequency as the stator current signal. Then original stator current signal and reference signal are processed simultaneously by DTW, so that fundamental frequency signal of the stator current is suppressed and the side frequency component is highlighted. Finally, the original stator current signal and reference signal are subtracted, and the Root Mean Square (RMS) of the residuals to estimate the damage degrees of the incipient rotor. The experimental results show the effectiveness of the proposed fault monitoring method.
Monitoring of Incipient Broken Rotor Bar Fault in Traction Motor Based on Dynamic Time Warping
2018-12-01
334630 byte
Conference paper
Electronic Resource
English
Rotor Broken Bar Fault Diagnosis for Induction Traction Motor Considering Low Load Condition
British Library Conference Proceedings | 2022
|Rotor Broken Bar Fault Diagnosis for Induction Traction Motor Considering Low Load Condition
Springer Verlag | 2022
|Induction motor broken rotor bar detection based on rotor flux angle monitoring
BASE | 2021
|