A comprehensive review of signal processing and machine learning technologies for UHF PD detection and diagnosis (I): Preprocessing and localization approaches

J Long, X Wang, W Zhou, J Zhang, D Dai, G Zhu - IEEE Access, 2021 - ieeexplore.ieee.org
Partial discharge (PD) detection and diagnosis based on the ultra-high frequency (UHF)
signals is one of the most widely adopted methods to evaluate the internal insulation status …

Partial Discharge Localization through k-NN and SVM

PM Sekatane, P Bokoro - Energies, 2023 - mdpi.com
Power transformers are essential for the distribution and transmission of electricity, but they
are prone to degradation due to faults early on. Partial Discharge (PD) is the most significant …

Fuzzy algorithms for diagnosis of furnace transformer insulation condition

AS Karandaev, IM Yachikov, AA Radionov, IV Liubimov… - Energies, 2022 - mdpi.com
Implementation of the smart transformer concept is critical for the deployment of IIoT-based
smart grids. Top manufacturers of power electrics develop and adopt online monitoring …

A RSSI-AOA-based UHF partial discharge localization method using MUSIC algorithm

Q Zheng, L Luo, H Song, G Sheng… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
To monitor the insulation deterioration of power equipment and realize prompt fault warning
systems in air-insulated substations, in this study, we propose a multiple signal classification …

Partial discharge localization using electromagnetic time reversal: A performance analysis

M Azadifar, H Karami, Z Wang, M Rubinstein… - IEEE …, 2020 - ieeexplore.ieee.org
In this study, first, a comparison on the application of electromagnetic time reversal (EMTR)
and time difference of arrival (TDoA) in partial discharge localization in power transformers …

An acoustic localization sensor based on MEMS microphone array for partial discharge

J Yan, C Chen, Z Wu, X Ding, L Lou - Sensors, 2023 - mdpi.com
Partial discharge (PD) localization is important for monitoring and maintaining high-voltage
equipment, which can help to prevent accidents. In this work, an acoustic localization sensor …

Performance analysis of acoustic sensors based time reversal technique for partial discharge localization in power transformers

VB Rathod, GB Kumbhar, BR Bhalja - Electric Power Systems Research, 2023 - Elsevier
This paper presents partial discharge (PD) localization in power transformers using the
acoustic time reversal (ATR) method. The ATR method comprises three steps (a) …

Time-reversal source reconstruction with electromagnetic kurtosis

XY Feng, Z Chen, ZM Xu - IEEE Transactions on Antennas and …, 2021 - ieeexplore.ieee.org
The time-reversal (TR) technique has been developed to solve inverse problems and to
reconstruct sources. However, much work on the topic so far has not considered the …

Time-reversal source reconstruction with space and time kurtoses

XY Feng, Z Chen, ZM Xu, J Li - IEEE Transactions on Antennas …, 2021 - ieeexplore.ieee.org
In our previous study, we introduced the concept of electromagnetic kurtosis and
incorporated it into the electromagnetic time-reversal process for source reconstruction. In …

Partial discharge localization in power transformers using acoustic time reversal

H Karami, FQ Aviolat, M Azadifar, M Rubinstein… - Electric Power Systems …, 2022 - Elsevier
The localization of partial discharges (PD) is important to monitor the conditioning of high
voltage insulator materials. One of the key components in power grids is the high power …