Anomaly-based detection of cyberattacks on line current differential relays

AM Saber, A Youssef, D Svetinovic… - … on Smart Grid, 2022 - ieeexplore.ieee.org
Currently, the architecture of Line Current Differential Relays (LCDRs) is designed to
respond to internal faults on the protected line using local and remotely-communicated …

Current-transformer saturation compensation for transformer differential relays

E Hajipour, M Vakilian… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
Current-transformer (CT) saturation threatens accurate discrimination between internal fault
current and magnetizing inrush current of a transformer and endangers the proper operation …

Fast detection and compensation of current transformer saturation using extended Kalman filter

F Naseri, Z Kazemi, E Farjah… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In this paper, an efficient method based on the Kalman filter (KF) theory is proposed for fast
and accurate detection and compensation of current transformer (CT) saturation. During the …

Current-transformer saturation detection using savitzky-golay filter

BM Schettino, CA Duque… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
A new application of the Savitzky-Golay (SG) filters in current-transformer saturation
detection is proposed. The ability of the SG filters to handle noisy signals improves the …

CT saturation detection and compensation: A hybrid physical model-and data-driven method

S Yang, Y Zhang, Z Hao, Z Lin… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Current transformer (CT) saturation is one of the dominant causes of relay protection
devices' malfunctions, which pose a threat to the safe operation of the power system. To …

Detection of current transformer saturation based on variational mode decomposition analysis

AA Abdoos - IET Generation, Transmission & Distribution, 2016 - Wiley Online Library
Sometimes, current transformers (CTs) are saturated in power systems due to increase of
flux passing through the CT core. The distorted CT secondary current can lead to …

Adaptive CWT‐based overcurrent protection for smart distribution grids considering CT saturation and high‐impedance fault

S AsghariGovar, S Heidari, H Seyedi… - IET Generation …, 2018 - Wiley Online Library
In this study, an adaptive continuous wavelet transform (CWT)‐based overcurrent protection
for smart grids is proposed to enhance the overcurrent protection performance encountering …

Current-transformer saturation prevention using a controlled voltage-source compensator

E Hajipour, M Vakilian… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
Current-transformer (CT) saturation causes severe distortion in the measured current
waveform which may lead to maloperation of the protective devices. This paper proposes a …

Detection of current transformer saturation phenomenon for secured operation of smart power network

S Biswal, M Biswal - Electric Power Systems Research, 2019 - Elsevier
Any secured operation of smart grid highly depends on the signal transmitted through
Intelligent Electronic Device (IED) to/from the external source. For this, the healthy operation …

Evaluation of various dynamics on current transformer saturation with a model study on power system protection

D Patel, N Chothani - Recent advances in Power Systems: Select …, 2023 - Springer
Now a day most power system protective schemes are incorporated with a current
transformer (CT) to reduce the current level of the power system, especially during heavy …