Comparison of time-domain methods for two-end PD location in power cables

Firdaus, Ahmad Fajar; Mardiana, Redy; Muyeen, S. M.

doi:10.1109/ccece.2012.6335064

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…In [34,35], several algorithms were introduced to obtain the arrival time of the pulse, including peak value detection (PVD), 50% peak value detection, threshold detection (TD), energy criterion method (EC), and Gabor centroid method (GC). The five methods are used to estimate the arrival time in every pulse position, as shown in Figure 16.…”

Section: Discussionmentioning

confidence: 99%

Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction

Yang

Zhao

Wang

et al. 2021

IET Generation Trans & Dist

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A method of reconstructing the original partial discharge (PD) signal to improve the accuracy of PD localization in cross-linked polyethylene (XLPE) cables is presented here. XLPE cables, extremely sensitive to PDs, are the most popular underground cables in urban grids. The conventional PD localization methods, based on evaluation of the arrival times of PD pulses in the time domain, are negatively affected by the dispersion and attenuation of PD signals propagating in the power cable. A method for the accurate localization of PDs realized through inverse frequency domain modelling (IFDM) is presented here. The method, eliminating the systematic localization error caused by the dispersion and attenuation, significantly improves the localization accuracy. The locations of the PD are identified by comparing peak values of the initial PD signals reconstructed from different extracted pulses. A method for evaluating the propagation constant of the cable is also presented. The efficiency of the accurate localization method was verified by laboratory experiments. Besides, the inherent limitations of the conventional PD localization method for longer cable tests are discussed. The inevitable location error in the conventional methods does not exist in the new method.

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Section: Discussionmentioning

confidence: 99%

Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction

Yang

Zhao

Wang

et al. 2021

IET Generation Trans & Dist

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“…Usually the method of measuring TOA in time domain is threshold method, centroid method, peak method and correlation method. In the literature [7,8], the above method is compared, and finally the peak method and the correlation method have high precision and stability. But in the actual test process, when the cable length is longer, partial discharge signal attenuation is serious, and a sufficiently low threshold must be set to successfully capture the partially discharged reflected wave signal, thus bringing a lot of noise interference; If the threshold is too high, it will not capture the reflected wave and cause positioning failure.…”

Section: Introductionmentioning

confidence: 99%

PD Detection on Power Cable with Peak-Correlation Method

Zhang¹,

Li²,

Zhang³

et al. 2018

Proceedings of the 2017 2nd International Conference on Electrical, Control and Automation Engineering (ECAE 2017)

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Abstract-Oscillating voltage is an effective method for PD detection in XLPE cable. In this paper, it mainly described the principle of oscillating waveform test system (OWTS) for PD detection and proposed the peak-correlation method for the location of partial discharge points. Then, an oscillating waveform test system for 10kV cable was established in the laboratory. It was used for the PD testing of a 500 meters long cable. In the end of the paper, the waveform characteristics of the direct pulse and reflect pulse were analyzed. With this feature, the problem caused by multi PDs in a single time window could be effectively solved which greatly improved the reliability and automation of the PD location algorithm. Experimental results show that oscillating voltage can effectively excite the generation of partial discharge and peak-correlation is a valid method for PD location with sufficient accuracy and reliability.

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Reliable detection of pulse arrival time for partial discharge location in HV cable based on improved Allen-Bear algorithm

Sun

Fang

Lei

et al. 2021

JCM

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In multi-sensor data based partial discharge (PD) source location in high voltage (HV) cable, poor reliability of detection of pulse arrival time against noises, waveform distortion, amplitude attenuation is the major barriers to practical application. In this paper, an improved Allen-Bear PD pulse detection algorithm, which combines the advantage of the characteristic functions of the two time-window energy ratio based detection algorithms, is proposed for robust PD location. The most critical contribution of proposed method is the extension of frequency domain component compared to the characteristic functions of the original algorithm. Simulation and physical experiment results demonstrate that the proposed method not only ensures the detection accuracy of the PD pulse arrival time, but also improves the reliability under harsh practical scenarios. It performs significantly better than the existing detection algorithm in terms of anti-noise, anti-waveform distortion, time window length variation, etc. It has significant value for practical applications.

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Comparison of time-domain methods for two-end PD location in power cables

Cited by 3 publications

References 16 publications

Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction

Development of the accurate localization of partial discharges in medium‐voltage XLPE cables based on pulse reconstruction

PD Detection on Power Cable with Peak-Correlation Method

Reliable detection of pulse arrival time for partial discharge location in HV cable based on improved Allen-Bear algorithm

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