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Application of wavelet analysis method in the stator faults diagnosis of frequency converter sets
2010
2010 3rd International Conference on Computer Science and Information Technology
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on wavelet module maximum theory. ...
Simulation results show that the designed method can detect and locate the early stator faults even with trivial characteristic quickly and accurately. ...
the maximum scale of wavelet module, wavelet module maximum theory can be used to obtain the stator faults characteristic and detect the early faults in time. ...
doi:10.1109/iccsit.2010.5565102
fatcat:rygimutfkrbpxeehexoqq2pz6u
The Faults Diagnosis of Optical Fiber Fusion Based on Wavelet Analysis
2012
Physics Procedia
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on wavelet module maximum theory. ...
According to the deficiency of traditional Fourier transform in faults diagnosis during the early period, the paper puts forward a new method to detect the abrupt change signal in the stator current based ...
the maximum scale of wavelet module, wavelet module maximum theory can be used to obtain the stator faults characteristic and detect the early faults in time. ...
doi:10.1016/j.phpro.2012.02.311
fatcat:pw6offt57rgxvgmu4gcbladndy
On the Detection of Induction-Motor Rotor Fault by the Combined "Time Synchronous Averaging-Discrete Wavelet Transform" Approach
2015
Journal of Electrical Engineering and Technology
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of the Time Synchronous Averaging technique and Discrete Wavelet Transform. ...
The obtained results are largely satisfactory, indicating a promising industrial application of the combined "Time Synchronous Averaging -Discrete Wavelet Transform" approach. ...
More recently, Bonnardot et al. have shown that this theory can bring new solutions to fault detection and diagnosis problems [23] . ...
doi:10.5370/jeet.2015.10.6.2315
fatcat:gig6ertthnbffmgjhr6knf4dru
Application of Wavelet Analysis in Fault Diagnosis for Asynchronous Motor by Simulation
2016
DEStech Transactions on Computer Science and Engineering
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Therefore, the faults of ship synchronous generator should be detected by using wavelet analysis theory, and this detection can be used to diagnose these faults accurately and effectively ( Wavelet ...
The fault signal can be extracted by using good frequency selection characteristics of wavelet transform multi-scale filter, which can be used for generator sample differential protection, detection of ...
doi:10.12783/dtcse/icte2016/4797
fatcat:xpisjc3kpjbjvoqwp7gfssvuza
The Extraction of Feature Signal of All-electric Ship Electric Power System Based on Wavelet Analysis
2013
International Journal of Signal Processing, Image Processing and Pattern Recognition
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In this paper, a mathematical model of all-electric ship power system was established, and wavelet analysis was used to extract the feature of heavy load of power grid fault condition based on MATLAB. ...
The simulation results prove that the simulating model of All Electric Ship Power System (AESPS) is reasonable, and by using the method wavelet analysis the feature information can be effectively extracted ...
This paper do formulation experiments about sudden load, generator side 3 phase short circuit fault, A grounding fault in AESPS system. ...
doi:10.14257/ijsip.2013.6.5.39
fatcat:htr7ms63bbbz3lgvcdqp4yuwrq
Doubly Fed Induction Generator Analysis Through Wavelet Technique
2009
Journal of Engineering Science and Technology Review
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The test system is first simulated and the results are mapped onto the wavelet format for accurate detection & better resolution of the characters of transients. ...
For the large penetration of wind energy, this paper using an embedded time-frequency localization features in wavelet, provides deep insight to the character of transient signals for a proposed test system ...
Line-Ground fault occurs on the ring distribution feeder near by the wind plant 2 is clearly detected, can be seen in figure (8) . ...
doi:10.25103/jestr.021.12
fatcat:yzaenblbf5e7zn5lbczrbyb3qu
Detection and Diagnosis of Stator and Rotor Electrical Faults for Three-Phase Induction Motor via Wavelet Energy Approach
2022
Electronics
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This paper presents a fault detection method in three-phase induction motors using Wavelet Packet Transform (WPT). ...
Information in wavelet high frequency subbands is then used for fault detection and activating the trip signal to disconnect the motor from the power supply. ...
Therefore, the proposed technique can be used to detect fault in induction motors in general. ...
doi:10.3390/electronics11081253
doaj:4849d5945fe548b99de5fbd1be856f00
fatcat:5izlmk22wnguxaepcyp7o3zyta
Electromechanical Transient Behavior Improvement by Coordinated Stabilizers
2001
IEEE Power Engineering Review
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Keywords: Zero-sequence voltage, stator ground fault, B-spline wavelet. ...
Abstract: This letter introduces a new stator ground fault protection principle for large generators. ...
doi:10.1109/mper.2001.4311214
fatcat:3jvhuj67tvhmxdqaylybr6ygcy
Faults and Diagnosis Methods of Permanent Magnet Synchronous Motors: A Review
2019
Applied Sciences
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Permanent magnet synchronous motors (PMSM) have been used in a lot of industrial fields. In this paper, a review of faults and diagnosis methods of PMSM is presented. ...
Firstly, the electrical, mechanical and magnetic faults of the permanent magnet synchronous motor are introduced. ...
Processing the signals obtained from the motor is one of the commonly used methods of fault detection. ...
doi:10.3390/app9102116
fatcat:o727fgz3sjdjrgeq254f64a2vu
Fault Diagnosis of Three-Phase Induction Motor: A Review
2015
Optics
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Different alternatives to detect and diagnose faults in induction machines have been proposed and implemented in the last years. ...
, the number and relevance of the faults that can be detected, the speed to anticipate a fault and the accuracy in the diagnosis. and to identify various such diagnosis techniques that can be applied for ...
They are generally known as phase-to-ground or phase-to-phase faults. Almost 30%-40% faults are stator faults. ...
doi:10.11648/j.optics.s.2015040101.11
fatcat:zc6kdjeejfgb7huyxzf6cqtiqe
Internal electrical fault detection techniques in DFIG-based wind turbines: a review
2022
Protection and Control of Modern Power Systems
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It discusses the methods that can be used to detect internal electrical faults in a DFIG stator, rotor, or both. ...
The main mathematical representation used to detect these faults is presented to allow an easier and faster understanding of each method. ...
or phase-to-ground fault. ...
doi:10.1186/s41601-022-00236-z
fatcat:l3klwwmpcvaktp2b4vb5g37osi
Over current and over voltage protection of permanent magnet brushless dc motor using wavelet analysis
2014
IOSR Journal of Electrical and Electronics Engineering
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Fine time resolution can be achieved using contracted version of the wavelet and fine frequency resolution can be achieved using expanded version. Daubechies4 wavelet is chosen for this application. ...
Wavelet Transform was developed to overcome this resolution problem. Wavelet Analysis uses contracted and expanded versions of a single prototype function called a wavelet. ...
Construction BLDC Motors are a type of synchronous motor, the magnetic field generated by the stator and the magnetic field generated by the rotor rotates at the same frequency. ...
doi:10.9790/1676-09537986
fatcat:v2svlqmfhvhe5eq5auhgbamtey
Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults
2017
Frontiers of Mechanical Engineering
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of these generators and power converters under faults; and discussed the grid voltage faults related to EPCSs in DD-WTs. ...
These theories and their related technical concepts are systematically discussed. Finally, predicted development trends are presented. ...
[97] , output signals were analyzed using a continuous wavelet transform to detect generator rotor eccentricity failure. ...
doi:10.1007/s11465-017-0442-1
fatcat:ukenx7du4jgljbuoxxilk3xe6m
Diagnosis Of Inter Turn Fault In The Stator Of Synchronous Generator Using Wavelet Based Anfis
2007
Zenodo
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Training data for ANFIS are generated via a simulation of generator with inter turn fault using MATLAB. ...
In this paper, Wavelet based ANFIS for finding inter turn fault of generator is proposed. The detector uniquely responds to the winding inter turn fault with remarkably high sensitivity. ...
A high speed bias differential relay is normally used to detect three Manuscript phase, phase-phase and double phase to ground faults. ...
doi:10.5281/zenodo.1335163
fatcat:traaavwqnjgpfhbqgo2kpkezne
Diagnosis Of Inter Turn Fault In The Stator Of Synchronous Generator Using Wavelet Based Anfis
2007
Zenodo
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The file type is application/pdf.
Training data for ANFIS are generated via a simulation of generator with inter turn fault using MATLAB. ...
In this paper, Wavelet based ANFIS for finding inter turn fault of generator is proposed. The detector uniquely responds to the winding inter turn fault with remarkably high sensitivity. ...
A high speed bias differential relay is normally used to detect three Manuscript phase, phase-phase and double phase to ground faults. ...
doi:10.5281/zenodo.1083467
fatcat:zjooselhfvfifc6mnxmhrro7hy
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