Results 1 to 10 of about 13,815 (190)

Harmonic Phasor Estimation Method Considering Dense Interharmonic Interference [PDF]

open access: yesEntropy, 2023
Due to the limitation of frequency resolution and the spectrum leakage caused by signal windowing, the spectrums of harmonic and interharmonic components with close frequencies overlap each other. When the dense interharmonic (DI) components are close to
Xianyong Xiao   +3 more
doaj   +4 more sources

Measurement accuracy verification of phasor measurement unit with dynamic phasor estimation [PDF]

open access: yesArchives of Electrical Engineering, 2018
Power systems that are highly loaded, especially by a stochastic supply of renewables and the presence of storages, require dynamic measurements for their optimal control.
Bartłomiej Arendarski   +3 more
doaj   +2 more sources

Estimation of Wideband Multi-Component Phasors Considering Signal Damping. [PDF]

open access: yesSensors (Basel), 2023
Harmonic and interharmonic content in power system signals is increasing with the development of renewable energy generation and power electronic devices. These multiple signal components can seriously degrade power quality, trip thermal generators, cause oscillations, and threaten system stability, especially the interharmonic tones with positive ...
Zhao D, Li S, Wang F, Zhao W, Huang S.
europepmc   +4 more sources

Harmonic Phasor Estimator for P-Class Phasor Measurement Units [PDF]

open access: yesIEEE Transactions on Instrumentation and Measurement, 2020
Fast harmonic phasor measurements are very useful in power system protection applications, e.g., high-impedance fault location and intelligent method-based islanding detection. To address this problem, a novel harmonic phasor estimator is proposed in this paper, especially for P-class phasor measurement units (PMUs).
Lei Chen   +3 more
openaire   +1 more source

A Bregman-Split-Based Compressive Sensing Method for Dynamic Harmonic Estimation

open access: yesEntropy, 2022
In order to overcome the spectral interference of the conventional Fourier transform in the International Electrotechnical Commission framework, this paper introduces a Bregman-split-based compressive sensing (BSCS) method to estimate the Taylor–Fourier ...
Aobing Chi   +3 more
doaj   +1 more source

A Robust Algorithm for Real-Time Phasor and Frequency Estimation under Diverse System Conditions

open access: yesEnergies, 2021
This paper presents a comprehensive approach for performing phasor and frequency estimation from voltage and/or current signals of the modern power system.
Babak Jafarpisheh, Anamitra Pal
doaj   +1 more source

Study of transient synchrophasors for the development of relay protection and control systems [PDF]

open access: yesE3S Web of Conferences, 2023
The paper discusses issues of improving control and relay protection systems based on the study and analysis of voltage and current synchrophasors of electromechanical and electromagnetic transient processes.
Mokeev Alexey, Piskunov Sergey
doaj   +1 more source

A Review of Dynamic Phasor Estimation by Non-Linear Kalman Filters

open access: yesIEEE Access, 2022
Phasor estimation under dynamic conditions has been under study recently by relaxing the amplitude and phase of the static phasor. This paper will review some methods to estimate dynamic phasor by nonlinear Kalman filters.
Jalal Khodaparast
doaj   +1 more source

Two modified DFT‐based algorithms for fundamental phasor estimation

open access: yesIET Generation, Transmission & Distribution, 2022
The discrete Fourier transform (DFT) is a powerful phasor estimation algorithm conventionally used in digital relaying applications. The DFT‐based phasor estimation is usually accompanied by oscillatory error due to the presence of the decaying DC (DDC ...
Saeed Afrandideh   +2 more
doaj   +1 more source

Dynamic Phasor Estimation Method Considering False Data Attack Detection

open access: yesTaiyuan Ligong Daxue xuebao, 2022
In this paper proposed was a dynamic phasor estimation method considering false data attack. First, an electrical signal model for dynamic conditions is established by Taylor series expansion of electrical signals with harmonic and noise conditions. Then,
Dakai ZHAO   +3 more
doaj   +1 more source

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