• Nenhum resultado encontrado

Top PDF Rotor Faults Detection in Induction Motor by Wavelet Analysis

Rotor Faults Detection in Induction Motor by Wavelet Analysis

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, ...

10

Clustering of the Self-Organizing Map based Approach in Induction Machine Rotor Faults Diagnostics

Clustering of the Self-Organizing Map based Approach in Induction Machine Rotor Faults Diagnostics

... 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 ...

14

Pesqui. Oper.  vol.36 número2

Pesqui. Oper. vol.36 número2

... 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. ...

20

Análise do campo magnético de um motor de ímã permanente no rotor utilizando o método...

Análise do campo magnético de um motor de ímã permanente no rotor utilizando o método...

... 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 ...

116

J. Microw. Optoelectron. Electromagn. Appl.  vol.16 número1

J. Microw. Optoelectron. Electromagn. Appl. vol.16 número1

... 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 ...

20

Use of a combined SVD-Kalman filter approach for induction motor broken rotor bars identification

Use of a combined SVD-Kalman filter approach for induction motor broken rotor bars identification

... 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 ...

17

Detection of Bearing Faults of Induction Motor Using Park’s Vector Approach

Detection of Bearing Faults of Induction Motor Using Park’s Vector Approach

... 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 ...

4

Faults Classification of a Scooter Engine Platform Using Wavelet Transform and Artificial Neural Network

Faults Classification of a Scooter Engine Platform Using Wavelet Transform and Artificial Neural Network

... 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 ...

6

A Text Localization Algorithm in Color Image via New Projection Profile

A Text Localization Algorithm in Color Image via New Projection Profile

... 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 ...

4

Acionamento por motor elétrico de rotor apoiado por mancal magnético com controle...

Acionamento por motor elétrico de rotor apoiado por mancal magnético com controle...

... 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 ...

165

Design of a high-torque machine with two integrated motors axes reducing the electric vehicle consumption

Design of a high-torque machine with two integrated motors axes reducing the electric vehicle consumption

... 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 ...

23

Estudo do Motor em Disco com o Rotor em Alumínio e em Supercondutor Multi-semente

Estudo do Motor em Disco com o Rotor em Alumínio e em Supercondutor Multi-semente

... 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 ...

242

Heterogeneous fault tolerance architecture based on Arm and RISC-V processors

Heterogeneous fault tolerance architecture based on Arm and RISC-V processors

... 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 ...

90

Efficient Brain Tumor Detection Using Wavelet Transform

Efficient Brain Tumor Detection Using Wavelet Transform

... 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 ...

6

Numerical Analysis of a Rotor-Bearing System Supported by Elastomeric Dampers

Numerical Analysis of a Rotor-Bearing System Supported by Elastomeric Dampers

... 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 ...

17

WAVELET TRANSFORMS IN TIME SERIES ANALYSIS

WAVELET TRANSFORMS IN TIME SERIES ANALYSIS

... 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 ...

34

Aulas  Liberato  Do professor Irineu

Aulas Liberato Do professor Irineu

... 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 ...

2

A Microcontroller Based Car-Safety System Implementing Drowsiness Detection And Vehicle-Vehicle Distance Detection In Parallel.

A Microcontroller Based Car-Safety System Implementing Drowsiness Detection And Vehicle-Vehicle Distance Detection In Parallel.

... 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 ...

3

Modelling and Simulation of Three Level VSI-Neutral Point Balancing -Fed AC Drive using Intelligence Techniques

Modelling and Simulation of Three Level VSI-Neutral Point Balancing -Fed AC Drive using Intelligence Techniques

... 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 ...

9

Show all 10000 documents...