This paper proposes a new fast algorithm to estimate the fundamental phasor of fault current
signals, based on discrete Fourier transform (DFT). Since fault currents include decaying dc …

This paper proposes a phasor estimation algorithm for P-class phasor measurement unit
suitable in protection applications using Hilbert transform and convolution of a signal. As the …

Accurate knowledge of oscillation parameters (ie, frequency, amplitude, phase, and
damping factor) is crucial for control strategies of power systems under power swing. This …

This article proposes a novel, fast discrete orthonormal Stockwell transform (FDOST)-based
protection-class microphasor measurement unit (P-μ PMU) algorithm. The proposed …

The paper proposes a simple phasor estimator by utilizing the dictionary-based sparse
representation of signals for control and protection applications in power system. It is also …

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 …

Data recorded by intelligent electronic devices such as protective relays contain a wealth of
valuable information that can be used beyond post-mortem analysis of fault events. The …

Impedance reach of numerical distance relay is severely affected by Fault Resistance (RF),
Fault Inception Angle (FIA), Fault Type (FT), Fault Location (FL), Power Flow Angle (PFA) …

Based on collected data from multiple phasor measurement units (PMUs), this paper
investigates and establishes the advantages of Taylor, Kalman, and Fourier filters for …

The fundamental frequency phasor measurement method based on Fourier transform is
affected by the decaying DC offset in fault current. To reduce this effect, a morphological …