Results 91 to 100 of about 819 (196)

How Instrument Transformers Influence Power Quality Measurements: A Proposal of Accuracy Verification Tests. [PDF]

open access: yesSensors (Basel), 2022
Crotti G   +10 more
europepmc   +1 more source

Real-time interharmonics detection and measurement based on FFT algorithm

open access: yes, 2009
The modern power systems are supplying an increasing number of non-linear loads like: double conversion systems, arc furnaces, arc discharging, high power Cycloconverter (CCV) etc. These loads are harmonics and interharmonics sources.
Pontt, Jorge, Valenzuela, Javier
core  

Comparison of Synchronization Techniques Under Distorted Grid Conditions

open access: yesIEEE Access, 2019
In grid-connected power converter applications, the phase-locked loop (PLL) is probably the most widely used grid synchronization technique, owing to its simple implementation. However, in power grids some very common problems, such as voltage distortion,
Ikram Ullah, Muhammad Ashraf
doaj   +1 more source

Grid Frequency Measurement through a PLHR Analysis Obtained from an ELF Magnetometer. [PDF]

open access: yesSensors (Basel), 2022
Portillo F   +5 more
europepmc   +1 more source

An Accurate Time-Domain Procedure for Harmonics and Interharmonics Detection

open access: yes, 2010
[[abstract]]Frequency is an important indicator for the quality of electric power. Accurate spectral decompositions rely much on the correct identification of frequencies of the measured signals.
G. W. Chang;C. I Chen
core  

Deep-Learning-Based Harmonics and Interharmonics Predetection Designed for Compensating Significantly Time-Varying EAF Currents

open access: yes, 2020
In this article, a new approach to compensate both the response and reaction times of active power filters (APF) for special cases of highly time-varying harmonics and interharmonics of electric arc furnace (EAF) currents is proposed.
B\ue4ckstr\uf6m, Karl   +3 more
core   +1 more source

Effect of voltage subharmonics and interharmonics on currents of line start permanent magnet synchronous motor

open access: yesTechnical Transactions
This study deals with currents of a line start permanent magnet synchronous motor (LSPMSM), supplied with voltage containing subharmonics and interharmonics – components of the frequency less than the fundamental frequency or not being equal to its ...
Gnaciński Piotr, Pepliński Marcin
doaj   +1 more source

Deep Learning Based Harmonics and Interharmonics Pre-Detection Designed for Compensating Significantly Time-varying EAF Currents

open access: yes, 2019
In this research work, time-and frequency-domain Deep Learning (DL) based methods have been developed to predetect harmonic and interharmonic components of a current waveform of an Electric Arc Furnace (EAF) application.
B\ue4ckstr\uf6m, Karl   +3 more
core   +2 more sources

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