Fast iterative-interpolated DFT phasor estimator considering out-of-band interference

J Song, A Mingotti, J Zhang, L Peretto… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
For interpolated discrete Fourier transform (IpDFT)-based phasor estimators, the out-of-band
interference (OOBI) test is among the most challenging ones. The typical iterative …

A novel interpolated DFT synchrophasor estimation algorithm with an optimized combined cosine self-convolution window

T Jin, W Zhang - IEEE Transactions on Instrumentation and …, 2020 - ieeexplore.ieee.org
With the current power system being electronicized nowadays, synchrophasor estimation
(SE) plays an increasingly critical role in the monitoring, analysis, and protection of the state …

Novel frequency estimator for distorted power system signals using Two-Point iterative windowed DFT

J Zhang, J Song, C Li, X Xu… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Tracking the frequency of power systems accurately and promptly is the cornerstone of
power industry applications. The excellence of windowed interpolation discrete Fourier …

Accurate DFT method for power system frequency estimation considering multi-component interference

K Wang, J Wang, J Song, L Tang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Frequency estimation plays a crucial role in monitoring and protecting smart grids. The
excellence of discrete Fourier transform (DFT)-based frequency estimators has been well …

Iterative two-point interpolated DFT algorithm for accurate frequency estimation

K Wang, H Wen, G Li, L Wang - IEEE Transactions on Power …, 2021 - ieeexplore.ieee.org
The literature on the subject of frequency estimation algorithms has discussed the use of
interpolated discrete Fourier transform (IpDFT) for the unbalanced/balanced three-phase …

Novel interpolation method of multi-DFT-bins for frequency estimation of signal with parameter step change

K Wang, S Liu, L Wang, J Smulko… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
The interpolation discrete Fourier transform (IpDFT) method is one of the most commonly
used nonparametric methods. However, when a parameter (frequency, amplitude, or phase) …

Parameter Estimation of Power System Oscillation Signals under Power Swing Based on Clarke–Discrete Fourier Transform

J Song, X Shan, J Zhang, H Wen - Electronics, 2024 - mdpi.com
Accurate knowledge of oscillation parameters (ie, frequency, amplitude, phase, and
damping factor) is crucial for control strategies of power systems under power swing. This …

Dynamic Synchrophasor Estimation Based on Weighted Real-Valued Sinc Interpolation Method

J Song, J Zhang, H Kuang, H Wen - IEEE Sensors Journal, 2022 - ieeexplore.ieee.org
Phasor measurement units (PMUs) are the cornerstone of intelligent sensing and monitoring
of power systems. The superiority of the sinc interpolation function-based least squares …

Efficient frequency estimation algorithm based on chirp-Z transform

K Wang, L Wang, B Yan, H Wen - IEEE Transactions on Signal …, 2022 - ieeexplore.ieee.org
The Discrete Fourier Transform (DFT), which can be calculated efficiently by the Fast Fourier
Transform (FFT), is one of the most commonly used tools for frequency estimation of a multi …

Cryptographic triboelectric random number generator with gentle breezes of an entropy source

MS Kim, IW Tcho, YK Choi - Scientific Reports, 2024 - nature.com
A wind-driven triboelectric nanogenerator (W-TENG) is a promising energy harvesting
device due to its clean, ubiquitous and unexhausted properties. In addition, a W-TENG …