Phase determination of partial discharge source in three-phase transmission lines using discrete wavelet transform and probabilistic neural networks

Su, Ming; Chen, Jiann Fuh; Lin, Yu Hsun

doi:10.1016/j.ijepes.2013.03.004

Cited by 16 publications

(2 citation statements)

References 34 publications

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“…By processing the measured PD signal, information can be obtained about the shape and position of the voids. Physical characteristics of the voids significantly affect the PD features [8–11 ]. Since PD cannot be measured directly, it can be measured through its energy products like electrical passers, chemical changes, electromagnetic diffusion, vibration, sound, light and heat.…”

Section: Introductionmentioning

confidence: 99%

Determining the exact location of partial discharge in coil insulation of high-voltage machine using high-frequency model of the machine

Khezri

Akbari

Saied

2020

IET Science, Measurement &Amp; Technology

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The current study is aimed at investigating the exact location of partial discharge (PD) in coil insulation of a 6 KV/250 KW induction machine. Since measured PD signals have frequency components of kilohertz (KHz) to megahertz (MHz), it is necessary to employ fast and very fast transient models of electrical machines for locating PDs. In this study, a PD current pulse with MHz frequency component is injected to the multi‐conductor transmission line model of each turn of the coil with frequency validity of >1 MHz. Considering coils as an interface between voltage source and finite element region, all circuit and field equations are rewritten to obtain the system final matrix, so that PD pulse is extracted. Experiment and simulation results show high accuracy of developed model to determine the exact location of PD.

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Section: Introductionmentioning

confidence: 99%

Determining the exact location of partial discharge in coil insulation of high-voltage machine using high-frequency model of the machine

Khezri

Akbari

Saied

2020

IET Science, Measurement &Amp; Technology

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“…PD pulse waveform after propagation will change. So the research of waveform characteristic for PD recognition and separation cannot be applied to the actual cable system [2]- [6].…”

Section: Introductionmentioning

confidence: 99%

Propagation Characteristics of Partial Discharge Pulses in the Cable

Lin¹,

Gui²,

Gao³

et al. 2014

JPEE

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In order to determine the type and location of partial discharge in cable, the effect of partial discharge (PD) pulse propagation in the cable is studied. Firstly, pulses are injected to cables of different lengths so that input and output signal can be measured at both ends of each cable. Then the transfer function of pulse propagation path can be defined. Secondly, high-voltage test is done in the cable joint with man-made defects, and typical PD waveforms are gotten. Seven parameters of waveform characteristics are calculated, including edge times, waveform shape and statistical characteristics. They are used to distinguish different types of PD or distances of the pulse propagation. Thus the efficiency of PD recognition in cable can be improved.

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Partial Discharge Detection Technique Using Polar Coordinate Phase-Resolved Pattern in Rail Transportation Gas-Insulated Substation

Yao

Hui

Bai

et al. 2020

Lecture Notes in Electrical Engineering

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Phase determination of partial discharge source in three-phase transmission lines using discrete wavelet transform and probabilistic neural networks

Cited by 16 publications

References 34 publications

Determining the exact location of partial discharge in coil insulation of high-voltage machine using high-frequency model of the machine

Determining the exact location of partial discharge in coil insulation of high-voltage machine using high-frequency model of the machine

Propagation Characteristics of Partial Discharge Pulses in the Cable

Partial Discharge Detection Technique Using Polar Coordinate Phase-Resolved Pattern in Rail Transportation Gas-Insulated Substation

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