Results 21 to 30 of about 1,045,600 (368)

Elimination of subharmonics in direct look-up table (DLT) sine wave reference generators for low-cost microprocessor-controlled inverters [PDF]

open access: yes, 2003
This paper investigates distortion of an inverter reference waveform generated using a direct look-up (DLT) algorithm. The sources of various distortion components are identified and the implications for application to variable speed drives and grid ...
Abeyasekera, T.   +3 more
core   +1 more source

Harmonic Contribution Assessment Based on the Random Sample Consensus and Recursive Least Square Methods

open access: yesEnergies, 2022
This paper deals with a method of quantifying the harmonic contribution of each harmonic source to system voltage distortion. Assessing the harmonic contribution of individual harmonic sources is essential for mitigating and managing system harmonic ...
Jong-Il Park, Chang-Hyun Park
doaj   +1 more source

Minimization of Voltage Harmonic Distortion of Synchronous Generators under Non-Linear Loading via Modulated Field Current

open access: yesEnergies, 2023
The synchronous generators (SGs) supplying non-linear loads have harmonically distorted terminal voltages. Hence, these distorted terminal voltages adversely affect the performance parameters of the supplied loads such as the power factor, current ...
Oktay Karakaya   +2 more
doaj   +1 more source

Comparison of different optimization criteria for optimal sizing of hybrid active power filters parameters [PDF]

open access: yes, 2014
Praise Worthy Prize granted a permission for Brunel University London to archive this article in BURA.Harmonic distortion in power systems has increased considerably due to the increasing use of nonlinear loads in industrial firms and elsewhere.
Elmathana, KTM, Zobaa, AF
core   +1 more source

Observatory case study on total harmonic distortion in current at laboratory and office building

open access: yesJournal of Physics: Conference Series, 2020
This paper discusses the level of harmonic distortion in current power distribution system for laboratory and office building. These two places often house a significant number of equipment such as computers, air conditioners, etc which are significant ...
M. Z. Mohd Radzi, M. Azizan, B. Ismail
semanticscholar   +1 more source

Nonlinearities of GaAlAs lasers - Harmonic distortion [PDF]

open access: yesIEEE Journal of Quantum Electronics, 1980
Narrow stripe lasers ( 2-6 \mu m) and transverse junction lasers exhibit excellent linearity. The dependence of relative second-and third-harmonic distortion is investigated as a function of modulation frequency and modulation current. Relative second- and third-harmonic distortion of -50 and -70 dB is observed for an optical signal of 4 mW p-p ( f_{m}
Stubkjær, Kristian, Danielsen, Magnus
openaire   +2 more sources

Utilization of an ANFIS-STSM Algorithm to Minimize Total Harmonic Distortion

open access: yesInternational Journal of Smart grid, 2020
Recently applications of second order super-twisting sliding mode (STSM) algorithm become more convenient in control of AC machines. The conventional technique, the capability of creating a high value of current or voltage.
H. Benbouhenni
semanticscholar   +1 more source

A Simple, Efficient, and Novel Standalone Photovoltaic Inverter Configuration With Reduced Harmonic Distortion

open access: yesIEEE Access, 2019
This paper is put forward a novel photovoltaic (PV) inverter topology for maximum solar power utilization, which incorporates a new maximum power point tracking (MPPT) scheme based on shading pattern identification using the artificial neural network ...
Muralidhar Nayak Bhukya   +2 more
semanticscholar   +1 more source

Optimal Harmonic Mitigation in Distribution Systems with Inverter Based Distributed Generation

open access: yesApplied Sciences, 2021
In recent years, with the widespread use of non-linear loads power electronic devices associated with the penetration of various renewable energy sources, the distribution system is highly affected by harmonic distortion caused by these sources. Moreover,
Ahmed S. Abbas   +6 more
doaj   +1 more source

A NEW STRUCTURE OF FIVE-LEVEL DIODE CLAMPED INVERTER WITH REDUCING ITS ELEMENTS

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2018
At the high power switching circuit's applications, when the harmonic distortion is harmful, a multi-level diode clamped inverter is useful, especially when reduced total harmonic distortion and high power are desired.
Othman M. Anssari
doaj   +1 more source

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