Partial discharge signal denoising based on singular value decomposition and empirical wavelet transform

J Zhong, X Bi, Q Shu, M Chen, D Zhou… - IEEE transactions on …, 2020 - ieeexplore.ieee.org
Online partial discharge (PD) monitoring is an important means to detect insulation
deterioration. However, it is difficult to extract the PD signal due to various interferences in …

Partial discharge signal denoising method based on frequency spectrum clustering and local mean decomposition

S Li, S Sun, Q Shu, M Chen, D Zhang… - IET Science …, 2020 - Wiley Online Library
Suppressing the background noise of partial discharge (PD) is one of the key issues for
accurately diagnosing the state of electrical equipment insulation. To solve this problem, this …

[图书][B] Prediction of Planned Outages of a Power Transformer Using Dissolved Gas Analysis and Nonlinear Autoregressive Neural Networks

S NKosi - 2020 - search.proquest.com
A power transformer is amongst the more expensive and critical equipment installed in the
power system. Unplanned power outages as a result of transformer failure have high …

Development and application of HVDC Cable polarization/depolarization current detecting instrument

M Huichao, J Li, L Yin, H Zhang… - Journal of Physics …, 2020 - iopscience.iop.org
In order to test the insulation state of 6kV XLPE cable reliably, the system design and related
test work are carried out in this paper. High voltage excitation source, weak current test …