[PDF] Top 20 Rotor Faults Detection in Induction Motor by Wavelet Analysis

... achieved in the design and manufacture of stator windings [1]. Motors driven by solid-state inverters undergo severe voltage stresses due to rapid switch-on and switch-off of semiconductor ...Also, ... See full document

... the detection of rotor bar faults of an induction motor, 14 parameters that seemed to be the best indicators of the faults were taken in consideration: the amplitude of 10 ... See full document

... detect. In general, most of the previous references present approaches for dealing with abrupt faults in the stator winding, which are eas- ier to be detected than incipient ...faults. ... See full document

... permanent-magnet motor, with nonsinusoidal flux, through the analysis of magnetic ...single-phase induction motor that received a new three-phase winding. The rotor consists of ... See full document

... papers in the literature dealing with this topic investigate, in the measured magnetic field spectrum, some singular frequency components associated to some defaults as in [14], or uses distortion of ... See full document

... implementation in real ...solution in this paper consists of the decrease of the computation time and the used memory space by applying the processing only on the frequency band where the signature ... See full document

... an induction motor is of paramount importance in industrial, commercial, aerospace and military ...role in the reliability and performance of all motor ...between motor system ... See full document

... interest in mechanical fault diagnosis using wavelet analysis has developed in the last few ...The wavelet analysis technique has become one of the important approaches in ... See full document

... contained in V, H and D. Second, we convert all the values in block B to zero and then compare the absolute values in V, H and D with a threshold and consider zero for the values less than this ... See full document

... do rotor que passam sobre o ...do motor, gerando a sinalização para a lógica de controle do ...do rotor e não apresenta nenhum das desvantagens dos sensores mecânicos descritos ... See full document

... The motor with double rotor is made up of two stators and two rotors. Each stator contains four pole pairs and six main teeth. Between two main teeth an inserted tooth is added to improve the waveform and ... See full document

... num rotor constituído por blocos de material SAT embutidos em fibra de vidro, sendo, inicialmente, magnetizados e depois colocados no seio do campo girante do estator, funcionando como um motor síncrono de ... See full document

... depicted in Figure ...code in parallel. Each processors’ code is stored in two different ...One in a Locked L2 Cache (L2C) and another in an On-Chip Memory ...one by the ... See full document

... Bra in tumor is one of the ma jor causes of death among ...Changes in speech, vision or hearing, proble m ba lancing or walking, changes in mood, personality or ability to concentrate, problems with ... See full document

... Thomazi, Santos and Lépore [10] presented a parametric study of a double ring shear type damper mounted between hydrodynamic journal bearings and their housings. The authors verified that improving external damping of ... See full document

... When observations are taken on two or more variables, it may be possible to use the variation in one time series to explain the variation in another series. This may lead to a deeper understanding of the ... See full document

... O motor universal é muito semelhante a um motor de corrente contínua ligado em série, sendo, entretanto, tanto o rotor quanto o estator montados em chapas de ferro (devido as perdas por correntes ... See full document

... [r] ... See full document

... Ideally, each individual needs between seven and eight hours of good quality sleep each night. Those with less build up sleep debt, or sleep deficit. At worst, drivers with sleep debt risk nodding off, yet fatigue can ... See full document

... shown in Figure 6 can be used to calculate the time for each sector (I to ...shown in Figure 7, with the switching states of all vectors. By using the same strategy that was used in chapter ... See full document