Fault Diagnosis of Rotating Rectifier Based on Waveform Distortion and Polarity of Current

Wei, Zhihuang; Liu, Weiguo; Pang, Ji; Sun, Chenghao; Zhang, Zan; Ma, Ping

doi:10.1109/tia.2019.2893140

Cited by 20 publications

(2 citation statements)

References 18 publications

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“…The main approach to the early detection of diode faults is based on the spectral analysis of the induced electromotive force measured by a search coil, which is often already installed in the exciter stator slots. When this device is not incorporated in the SM, alternative methods can be applied, based on the output voltage analysis [54] or on the total harmonic distortion (THD) and polarity of the asynchronous exciter armature current [55].…”

Section: Rotor Windingmentioning

confidence: 99%

Novel Diagnostic Techniques for Rotating Electrical Machines—A Review

Frosini

2020

Energies

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This paper aims to update the review of diagnostic techniques for rotating electrical machines of different type and size. Each of the main sections of the paper is focused on a specific component of the machine (stator and rotor windings, magnets, bearings, airgap, load and auxiliaries, stator and rotor laminated core) and divided into subsections when the characteristics of the component are different according to the type or size of the machine. The review considers both the techniques currently applied on field for the diagnostics of the electrical machines and the novel methodologies recently proposed by the researchers in the literature.

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Section: Rotor Windingmentioning

confidence: 99%

Novel Diagnostic Techniques for Rotating Electrical Machines—A Review

Frosini

2020

Energies

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“…In the past years, researchers have paid attention to fault detection of rectifier diodes [7][8][9][10][11][12]. These faults do not have immediate fatal consequences for the whole system, but using a generator in such a bad condition could probably result in an unexpected adverse effect on the system.…”

Section: Introductionmentioning

confidence: 99%

Metrology and Measurement Systems

Feng

Cui

Zhang

2021

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A fault diagnosis method for the rotating rectifier of a brushless three-phase synchronous aerospace generator is proposed in this article. The proposed diagnostic system includes three steps: data acquisition, feature extraction and fault diagnosis. Based on a dynamic Fast Fourier Transform (FFT), this method processes the output voltages of aerospace generator continuously and monitors the continuous change trend of the main frequency in the spectrum before and after the fault. The trend can be used to perform fault diagnosis task. The fault features of the rotating rectifier proposed in this paper can quickly and effectively distinguish single and double faulty diodes. In order to verify the proposed diagnosis system, simulation and practical experiments are carried out in this paper, and good results can be achieved.

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