Results 11 to 20 of about 7,383,853 (302)

Harmonic Assessment Based Adjusted Current Total Harmonic Distortion [PDF]

open access: yesThe Journal of Engineering, 2016
Power systems suffer from harmonic distortion and extra ohmic losses associated with them. Moreover, all harmonic frequencies are mostly assumed to have the same effect on the system losses. However, the frequency-dependency of the resistances should be
Shady Abdel Aleem   +2 more
doaj   +2 more sources

Intermodulation distortion performance enhancement of microwave power amplifiers [PDF]

open access: yes, 2000
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis reports the author's investigation of the effects of the injection of specific signals on the intermodulation distortion performance of ...
Mbabele, Modeste
core   +6 more sources

Standards of Distorted Signal for Calibration of Total Harmonic Distortion Meters [PDF]

open access: yesRadioengineering, 1998
In this article a survey and evaluation of some progressive approaches to the standards of non-linear distortion is reported. Some types of standards of signals with the known total harmonic distortion used for calibration of distortion measuring ...
P. Horsky
doaj   +2 more sources

Interpretation of partial discharge activity in the presence of harmonics [PDF]

open access: yes, 2010
Recent work has identified that circumstances of equipment operation can radically change condition monitoring data. This contribution investigates the significance of considering circumstance monitoring on the diagnostic interpretation of such condition
Rowland, S.M.   +4 more
core   +3 more sources

Total Harmonic Distortion Reduction in Multilevel Inverters through the Utilization of the Moth–Flame Optimization Algorithm

open access: yesApplied Sciences, 2023
This paper shows the implementation of the Moth–Flame Optimization algorithm in a Cascade-H multilevel inverter with five and seven levels to determine the optimal switching sequence of the inverter’s semiconductor devices.
Adolfo R. Lopez   +12 more
doaj   +1 more source

A Proposed Harmonic Monitoring System for Large Power Users Considering Harmonic Limits

open access: yesEnergies, 2020
Most power utilities within Southern Africa are faced with the challenges of harmonic distortion due to the high penetration of renewable energy sources (RES) and the use of electronic devices.
Rosalia Sinvula   +2 more
doaj   +1 more source

Designing Passive Harmonic Filter of Electric Propulsion System on Tanker Ship [PDF]

open access: yes, 2018
Harmonic is a frequency defect that have some negative effect to the electrical network system. In a ship, electrical network system are interconnected to each other to another electrical consumer device.
Zaman, Muhammad Badrus; Department of Marine Engineering, Faculty of Marine Technology, Institut Teknologi Sepuluh Nopember, Surabaya 60111   +3 more
core   +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

Hardware in the Loop Real-Time Simulation of Improving Hosting Capacity in Photovoltaic Systems Distribution Grid With Passive Filtering Using OPAL-RT

open access: yesIEEE Access, 2023
The industrial revolution in the world resulted in a rise in the desire for energy in recent years. Therefore, the trend was strong toward the utilization of alternative and sustainable energy sources, such as solar power and wind energy.
Mohamed A. Ismeil   +3 more
doaj   +1 more source

Total harmonic distortion of an asymmetric quasi-sinusoidal current

open access: yesMATEC Web of Conferences, 2017
This paper presents the correlation of factors that determine the quality of asymmetric quasi-sinusoidal output current and dynamic losses in the switches of the current generator circuit.
Grebennikov Vitaliy   +2 more
doaj   +1 more source

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