Application of probabilistic distance measures for inrush and internal fault currents discrimination in power transformer differential protection

M Tajdinian, H Samet - Electric power systems research, 2021 - Elsevier
Differential protection failure in discrimination of inrush and internal fault currents will impose
significant challenges and damages both on the power transformers and power systems. To …

Half‐cycle method for exponentially DC components elimination applicable in phasor estimation<? show [AQ ID= Q1]?>

M Tajdinian, AR Seifi… - … Science, Measurement & …, 2017 - Wiley Online Library
Decaying DC component has considerable effect on both accuracy and speed of
convergence in numerical and digital relays for estimating fundamental phasor. Basically …

Framework for current transformer saturation detection and waveform reconstruction

M Tajdinian, A Bagheri… - IET Generation …, 2018 - Wiley Online Library
Due to current transformer (CT) saturation, the secondary current waveform may contain
distortions which results in mal‐operation of the protective system. This study presents a …

Analytical discrete Fourier transformer‐based phasor estimation method for reducing transient impact of capacitor voltage transformer

M Tajdinian, M Allahbakhshi, AR Seifi… - IET Generation …, 2017 - Wiley Online Library
The output voltage of capacitor voltage transformer (CVT) is highly influential during
initiation of contingencies due to its transient behaviour. This study proposes a novel method …

Hybrid approach for immunisation of DFT‐based phasor estimation method against decaying DC components

M Allahbakhshi, M Tajdinian, AR Seifi… - IET Science …, 2019 - Wiley Online Library
In addition to high‐order harmonic and noise components, the fault current may contain
decaying DC components which highly affect the estimated fundamental frequency phasor …

Enhancing immunity of full-cycle discrete Fourier transform against decaying DC components: A comparative analysis

M Tajdinian, H Samet, A Hamedi… - … on Environment and …, 2019 - ieeexplore.ieee.org
Decaying DC terms of the fault current signal indisputably affect the accuracy of the discrete
Fourier transform (DFT) based fundamental phasor estimators of digital relays. This effects …

An Enhanced Dynamic Phasor Estimation Algorithm for Considering the Behaviour of Distributed Generators in Fault Condition

M Tajdinian, R Shirali, B Behdani… - … on Environment and …, 2022 - ieeexplore.ieee.org
During fault occurrence close to the distributed generators (DGs) produces a fundamental
sinusoidal component with time-variant magnitude. An enhanced dynamic phasor …

Probabilistic analysis of current‐transformer dimensioning: A criterion for determining the level of exposure to saturation

A Hashemi, M Tajdinian, AR Seifi - … Transactions on Electrical …, 2019 - Wiley Online Library
Saturation of the current transformer (CT) results in maloperation of current‐dependent
protective relays. While enhancing in the core area may prevent the saturation, it …

Shunt Capacitor Bank Fault Detection and Localization Using Sub-Cycle Algorithm

M Tajdinian, B Behdani, A Goodarzi… - 2022 IEEE Electrical …, 2022 - ieeexplore.ieee.org
Fast internal detection and location in Shunt Ca-pacitor Banks (SCBs) can lead to the
prevention of damages to other SCBs' elements and consequently avoid undesirable …

Vulnerability Assessment of Phasor Estimation Algorithms under CT Saturation: A Comparative Analysis

M Tajdinian, B Behdani, A Goodarzi… - … on Environment and …, 2022 - ieeexplore.ieee.org
Saturation phenomena in the current transformer (CT) may impose severe deformation in
the secondary current of a CT. Obviously, CT saturation profoundly impacts the performance …