A Review on the Classification of Partial Discharges in Medium-Voltage Cables: Detection, Feature Extraction, Artificial Intelligence-Based Classification, and …

H Kumar, M Shafiq, K Kauhaniemi, M Elmusrati - Energies, 2024 - mdpi.com
Medium-voltage (MV) cables often experience a shortened lifespan attributed to insulation
breakdown resulting from accelerated aging and anomalous operational and environmental …

[HTML][HTML] Power Grid Renovation: A Comprehensive Review of Technical Challenges and Innovations for Medium Voltage Cable Replacement

A Rafati, H Mirshekali, HR Shaker, N Bayati - Smart Cities, 2024 - mdpi.com
Highlights What are the main findings? Transitioning from offline detection approaches to
condition-monitoring strategies is vital. Permanent cable monitoring enables utilities to …

Identification of corona discharges based on wavelet scalogram images with deep convolutional neural networks

HI Uckol, S Ilhan - Electric Power Systems Research, 2023 - Elsevier
This paper presents a new wavelet-based approach to automate the identification of positive
and negative DC corona discharge current pulses. Two electrode systems with variable gap …

A DFT study of SF6 decomposition products (H2S, SO2, and CS2) adsorption and detection on Pd-ZnO/SnS2 ternary composites

H Zhang, Z Zhang, X Cheng, M Wang, B Yu… - Surfaces and …, 2024 - Elsevier
Real-time and accurate detection of SF 6 decomposition products is a crucial approach to
diagnosing internal faults of gas-insulated switchgear (GIS). However, the limited sensitivity …

Characterization of partial discharges in dielectric oils using high-resolution CMOS image sensor and convolutional neural networks

JM Monzón-Verona, P González-Domínguez… - Sensors, 2024 - mdpi.com
In this work, an exhaustive analysis of the partial discharges that originate in the bubbles
present in dielectric mineral oils is carried out. To achieve this, a low-cost, high-resolution …

[HTML][HTML] Measurement of partial discharge echo and extraction of decay attributes

M Florkowski - Measurement, 2024 - Elsevier
In this article, an original measurement methodology is presented for insight into the partial
discharge (PD) mechanism− being one of the key indicators of high-voltage insulation …

Localization of partial electrical discharges using compressive spherical frequency-difference beamforming

JH Lee, Y Park, P Gerstoft, Y Kim - … Journal of the Acoustical Society of …, 2024 - pubs.aip.org
Accurate localization of partial electrical discharges is essential for the diagnosis of high-
voltage systems. The current study achieves this by employing an acoustic sensor array and …

Partial discharge identification based on unsupervised representation learning under repetitive impulse excitation with ultra-fast slew-rate

B Chen, Y Hu, L Wu, W Xu… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Power electronic devices are widely used in renewable power systems, and the
characteristics of partial discharge (PD) signals under repetitive impulse excitation are vastly …

Diagnostics of partial discharge measurements utilizing multi-sensor temporal pulse sequence analysis

K Zhang, A Reid, D Clark, M Michelarakis… - IEEE …, 2024 - ieeexplore.ieee.org
This paper presents an improved temporal pulse sequence analysis (PSA) method for
diagnosing partial discharge (PD) phenomena. The proposed method enables …

Optimum feature selection for classification of PD signals produced by multiple insulation defects in electric motors

W Hassan, GA Hussain, A Wahid, M Safdar… - Scientific Reports, 2024 - nature.com
Partial discharges (PD) are initiated in electrical equipment during various points of the
equipment's lifecycle. The intensity of PD defects rises continuously with time, which can …