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] Ensemble learning methods using the Hodrick–Prescott filter for fault forecasting in insulators of the electrical power grids

LO Seman, SF Stefenon, VC Mariani… - International Journal of …, 2023 - Elsevier
Electrical power grid insulators installed outdoors are exposed to environmental conditions,
such as the accumulation of contaminants on their surface. The contaminants increase the …

Classification of insulators using neural network based on computer vision

SF Stefenon, MP Corso, A Nied… - IET Generation …, 2022 - Wiley Online Library
Insulators of the electrical power grid are usually installed outdoors, so they suffer from
environmental stresses, such as the presence of contamination. Contamination can increase …

Research progress of self-cleaning, anti-icing, and aging test technology of composite insulators

Q He, W He, F Zhang, Y Zhao, L Li, X Yang, F Zhang - Coatings, 2022 - mdpi.com
Composite insulators are widely used in power systems because of their advantages of light
weight, good pollution resistance, and high mechanical strength. With the increasingly …

Classification of distribution power grid structures using inception v3 deep neural network

SF Stefenon, KC Yow, A Nied, LH Meyer - Electrical Engineering, 2022 - Springer
To maintain the supply of electrical energy, it is necessary that failures in the distribution grid
are identified during inspections of the electrical power system before shutdowns occur. To …

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 …

Evaluation of visible contamination on power grid insulators using convolutional neural networks

MP Corso, SF Stefenon, G Singh, MV Matsuo… - Electrical …, 2023 - Springer
The contamination of insulators increases their surface conductivity, resulting in a higher
chance of shutdowns occurring. To measure contamination, equivalent salt deposit density …

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 …

Optimal design of electrical power distribution grid spacers using finite element method

SF Stefenon, LO Seman, BA Pavan… - IET Generation …, 2022 - Wiley Online Library
Spacers in the compact power distribution network are essential components for the support,
organization, and spacing of conductors. To improve the reliability of these components and …

Leakage current characteristics in estimating insulator reliability: experimental investigation and analysis

AA Salem, KY Lau, W Rahiman, Z Abdul-Malek… - Scientific Reports, 2022 - nature.com
The monitoring of leakage current (LC) and voltage characteristics in transmission line
insulators is regarded as a good technique for anticipating the physical state of in-service …