[HTML][HTML] Fault prediction based on leakage current in contaminated insulators using enhanced time series forecasting models

NF Sopelsa Neto, SF Stefenon, LH Meyer, RG Ovejero… - Sensors, 2022 - mdpi.com
To improve the monitoring of the electrical power grid, it is necessary to evaluate the
influence of contamination in relation to leakage current and its progression to a disruptive …

[HTML][HTML] Tools for measuring energy sustainability: A comparative review

R Ninno Muniz, S Frizzo Stefenon, W Gouvêa Buratto… - Energies, 2020 - mdpi.com
This paper is intended to perform a comparative and qualitative review among eight tools to
measure energy sustainability. Therefore, it was necessary to create a theoretical and …

Echo state network applied for classification of medium voltage insulators

SF Stefenon, LO Seman, NFS Neto, LH Meyer… - International Journal of …, 2022 - Elsevier
Insulators are components of electrical power grid that have the function of mechanically
supporting cables and isolating electrical potential. The proper functioning of the insulators …

[HTML][HTML] Classification of Contaminated Insulators Using k-Nearest Neighbors Based on Computer Vision

MP Corso, FL Perez, SF Stefenon, KC Yow… - Computers, 2021 - mdpi.com
Contamination on insulators may increase the surface conductivity of the insulator, and as a
consequence, electrical discharges occur more frequently, which can lead to interruptions in …

Hybrid wavelet stacking ensemble model for insulators contamination forecasting

SF Stefenon, MHDM Ribeiro, A Nied, VC Mariani… - IEEE …, 2021 - ieeexplore.ieee.org
Contaminated insulators can have higher surface conductivity, which can result in
irreversible failures in the electrical power system. In this paper, the ultrasound equipment is …

Analysis of the ultrasonic signal in polymeric contaminated insulators through ensemble learning methods

SF Stefenon, R Bruns, A Sartori, LH Meyer… - IEEE …, 2022 - ieeexplore.ieee.org
Outdoor insulators may experience stress due to severe environmental conditions, such as
pollution and contamination. Through the identification of partial discharges by ultrasonic …

Wavelet group method of data handling for fault prediction in electrical power insulators

SF Stefenon, MHDM Ribeiro, A Nied, VC Mariani… - International Journal of …, 2020 - Elsevier
Electric power is increasingly being used in the globalized day-to-day and keeping the
electric power system running is necessary. Insulators are important components of the …

Optimized hybrid YOLOu‐Quasi‐ProtoPNet for insulators classification

SF Stefenon, G Singh, BJ Souza… - IET Generation …, 2023 - Wiley Online Library
To ensure the electrical power supply, inspections are frequently performed in the power
grid. Nowadays, several inspections are conducted considering the use of aerial images …

[HTML][HTML] A study of multilayer perceptron networks applied to classification of ceramic insulators using ultrasound

NF Sopelsa Neto, SF Stefenon, LH Meyer, R Bruns… - Applied Sciences, 2021 - mdpi.com
Interruptions in the supply of electricity cause numerous losses to consumers, whether
residential or industrial and may result in fines being imposed on the regulatory agency's …

Comparison of artificial intelligence techniques to failure prediction in contaminated insulators based on leakage current

A Medeiros, A Sartori, SF Stefenon… - Journal of Intelligent …, 2022 - content.iospress.com
Contamination in insulators results in an increase in surface conductivity. With higher
surface conductivity, insulators are more vulnerable to discharges that can damage them …