Results 1 to 10 of about 200,390 (295)

Harmonic Contribution Quantification for Multiple Harmonic Sources Based on Minimum Impedance Fluctuation

IEEE Access, 2023
The background harmonic fluctuation has a significant impact on the results of harmonic contribution quantification. However, the existing methods, especially those applied for multiple harmonic sources scenario, usually assume that the background ...
Xin Tang, Fangwei Xu, Wenyu Wang, Chuan Wang, Chao Chen, Jinghui Fang, Liwu Gong, Chuangxin Guo   +7 more
doaj   +2 more sources

Multiple harmonic sources identification including inverter‐based distributed generations using empirical Fourier decomposition

IET Generation, Transmission & Distribution, 2023
This paper proposes an intelligent approach based on the empirical Fourier decomposition (EFD) to identify harmonic sources at the point of common coupling (PCC) when different inverter‐based distributed generations (DGs) like microturbine (MT), battery ...
Shayan Z. T. Motlagh, Asghar Akbari Foroud   +1 more
doaj   +2 more sources

Predicting Harmonic Distortion of Multiple Converters in a Power System [PDF]

Journal of Electrical and Computer Engineering, 2017
Various uncertainties arise in the operation and management of power systems containing Renewable Energy Sources (RES) that affect the systems power quality. These uncertainties may arise due to system parameter changes or design parameter choice.
P. M. Ivry, O. A. Oke, D. W. P. Thomas, M. Sumner   +3 more
doaj   +5 more sources

Quantum limits of localisation microscopy [PDF]

New Journal of Physics, 2019
Localisation microscopy of multiple weak, incoherent point sources with possibly different intensities in one spatial dimension is equivalent to estimating the amplitudes of a classical mixture of coherent states of a simple harmonic oscillator.
Evangelia Bisketzi, Dominic Branford, Animesh Datta   +2 more
doaj   +3 more sources

Independent Component Analysis-Based Harmonic Transfer Impedance Estimation for Networks with Multiple Harmonic Sources

Energies
This paper presents a novel methodology to estimate the harmonic transfer impedances in electric power systems with multiple harmonic sources (HSs). The purpose is to determine the responsibility of each HS for the total harmonic distortion at a specific
Mateus M. de Oliveira, Leandro R. M. Silva, Igor D. Melo, Carlos A. Duque, Paulo F. Ribeiro   +4 more
doaj   +2 more sources

An artificial neural network based harmonic distortions estimator for grid- connected power converter-based applications

Ain Shams Engineering Journal, 2023
Grid-connected solar Photovoltaic (PV) systems are predicted to cause significant harmonic distortions in today’s power networks due to the increase utilization of power conversion systems widely recognized as harmonic sources.
Thamer A.H. Alghamdi, Othman T.E. Abdusalam, Fatih Anayi, Michael Packianather   +3 more
doaj   +1 more source

Assessing Time-Varying Harmonic Interactions in a Wind Park

IEEE Access, 2021
The harmonic interaction mechanism in a wind park is examined in this paper. The paper investigates the feasibility of a solution to the yet challenging harmonic contribution estimation from multiple sources in a wind park with limited available ...
Vineetha Ravindran, Naser Nakhodchi, Sarah Ronnberg, Math H. J. Bollen   +3 more
doaj   +1 more source

A Novel Method for Assessing the Contribution of Harmonic Sources to Voltage Distortion in Power Systems

IEEE Access, 2020
This paper presents a method for evaluating the harmonic contributions of multiple harmonic sources to voltage distortion at the point of common coupling (PCC).
Jong-Il Park, Hansang Lee, Minhan Yoon, Chang-Hyun Park   +3 more
doaj   +1 more source

Metasurface spatial filters for multiple harmonic signals

Nanophotonics, 2023
Nonlinear frequency mixings have shown an alternative way to create new electromagnetic sources in frequency ranges that are difficult to access with conventional techniques. To simultaneously use the fundamental frequency pump beam and multiple harmonic
Kim Daeik, Nguyen Mai Anh, Byun Gangil, Lee Jongwon   +3 more
doaj   +1 more source

Harmonic Impedance Model of Multiple Utility-Interactive Multilevel Photovoltaic Inverters

Energies, 2022
An important requirement of the power grid with high penetration of renewable energy sources is the mitigation of potential harmonic interactions between different distributed large grid-tie inverters and the mains.
Christian A. Rojas, Samir Kouro, Ruben Inzunza, Yasuaki Mitsugi, Abraham M. Alcaide   +4 more
doaj   +1 more source