Stator current of induction motor is analysed at single phasing by measuring phase angle, symmetrical components, Skewness, Kurtosis and harmonic distortion in Park plane. Diagnosis of single phasing of induction motor has been achieved by sequence components and stator current based pattern assessment. Distinct phase shift from 120° to 180° is observed between healthy phases. Patterns are formed using line currents and single phasing is assessed by using rule sets developed from features extracted from those patterns. Experimental result agrees with rule set and result obtained by assessment using sequence components. Then assessment is done by analysing wavelet decomposition based Skewness and Kurtosis of stator current in Park plane. At last, area based approach is used for assessment of single phasing and different distortion factors because of harmonics in Park plane are assessed. Accuracy increases with the increase of sampling rate of data acquisition system and use of Park plane has reduced computation effort by two-thirds. Thus single phasing is detected by sequence components supported by pattern formation and feature extraction and then harmonics during single phasing are assessed by wavelet decomposition and area-based approach in Park plane.
Analysis of stator current of induction motor used in transport system at single phasing by measuring phase angle, symmetrical components, Skewness, Kurtosis and harmonic distortion in Park plane
IET Electrical Systems in Transportation ; 4 , 1 ; 1-8
2014-03-01
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
transport system , Park plane , induction motors , wavelet transforms , pattern formation , stators , angular measurement , single phasing , induction motor stator current analysis , phase angle measurement , kurtosis measurement , symmetrical components , harmonic distortion measurement , rule sets , data acquisition system , wavelet decomposition , skewness measurement , feature extraction
Metadata by IET is licensed under CC BY 3.0
Robust Skewness-Kurtosis Descriptor for Damping Calibration from Frequency Response
Online Contents | 2013
|Impact of Heat on the Pressure Skewness and Kurtosis in Supersonic Jets
Online Contents | 2014
|