NDLI: Impulsive noise reduction for transient Earth voltage-based partial discharge using Wavelet-entropy

Content Provider	IET Digital Library
Author	Luo, Guomin Zhang, Daming Tseng, King Jet He, Jinghan
Abstract	Partial discharge (PD) is caused by the localised electrical field intensification in insulating materials. Early detection and accurate measurement of PD are very important for preventing premature failure of the insulating material. Detection of PDs in metal-clad apparatus through the transient Earth voltage method is a promising approach in non-intrusive on-line tests. However, the electrical interference from background environment remains the major barrier to improving its measurement accuracy. In this study, a wavelet-entropy-based PD de-noising method has been proposed. The unique features of PD are characterised by combining wavelet analysis that reveals the local features and entropy that measures the disorder. With such features, a feed-forward back-propagation artificial neural network is adopted to recognise the actual PDs from noisy background. Comparing with other methods such as the energy-based method and the similarity-comparing method, the proposed wavelet-entropy-based method is more effective in PD signal de-noising.
Starting Page	69
Ending Page	76
Page Count	8
ISSN	17518822
Volume Number	10
e-ISSN	17518830
Issue Number	Issue 1, Jan (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-smt/10/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2014.0203
Journal	IET Science, Measurement & Technology
Publisher	The Institution of Engineering and Technology
Publisher Date	2016-01-01
Access Restriction	Open
Rights License	Creative Commons Attribution-Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/)
Subject Keyword	Backpropagation Dielectric Breakdown And Discharges Electric Discharges Entropy Feed-forward Back-propagation Artificial Neural Network Feedforward Neural Network Impulse Noise Impulsive Noise Reduction Insulation And Insulating Coatings Insulation Testing Partial Discharges Production Facilities And Engineering Signal Denoising Signal Processing And Detection Transient Earth Voltage-based Partial Discharge Wavelet Analysis Wavelet Transform Wavelet-entropy-based Partial Discharge De-noising Method
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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