Results 21 to 30 of about 31,734 (309)

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
Rudd, S. E.   +13 more
core   +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

Analytical model for calculating the nonlinear distortion in silicon-based electro-optic Mach-Zehnder modulators [PDF]

open access: yes, 2013
In this study, an analytical model for calculating the nonlinear harmonic/intermodulation distortion for RF signals in silicon-based electro-optic modulators is investigated by considering the nonlinearity on the effective index change curve with the ...
Herrera Llorente, Javier   +13 more
core   +1 more source

Image quality assessment based on harmonics gain/loss information [PDF]

open access: yes, 2005
We present an objective reduced-reference image quality assessment method based on harmonic gain/loss information through a discriminative analysis of local harmonic strength (LHS).
Gunawan, I.P.   +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

An approach to harmonic load- and source-pull measurements for high-efficiency PA design [PDF]

open access: yes, 2004
High-efficiency power-amplifier design requires numerous efforts to investigate both input and output harmonic terminations effects. A simplified theoretical approach to clarify the relevance of such terminations is presented here, and design criteria to
Ernesto Limiti   +18 more
core   +1 more source

MSSB to Prevent Cable Termination Faults for Long High Voltage Underground Cable Lines

open access: yesElektronika ir Elektrotechnika, 2019
Cable termination fault is one of the most important problems for high voltage underground cable lines (HVUCL). Harmonic current (HC) and the sheath current (SC) are causes of cable termination faults of HVUCL.
Bahadir Akbal
doaj   +1 more source

Power Quality and Performance Analysis of Grid-Connected Solar PV System Based on Recent Grid Integration Requirements

open access: yesInternational Journal of Photoenergy, 2021
The electrical energy demand is steadily growing, and hence, the integration of photovoltaic system to the distribution networks is also dramatically increasing though it has a significant effect on the network’s power quality.
Estifanos Abeje Sharew   +2 more
doaj   +1 more source

Behavior of single-point harmonic producer indicators in electrified AC railways [PDF]

open access: yesMetrology and Measurement Systems, 2021
Electrified railways are an example of AC single phase distribution networks. A non-negligible amount of active and nonactive power may be related to harmonics, especially for distorted highly-loaded systems.
Andrea Mariscotti
doaj   +1 more source

Geomagnetically Induced Currents and Harmonic Distortion: High Time Resolution Case Studies

open access: yesSpace Weather, 2020
High time resolution (1–5 s) magnetometer, geomagnetically induced current (GIC), and mains harmonic distortion data from the Halfway Bush substation in Dunedin, New Zealand, are analyzed.
Mark A. Clilverd   +6 more
doaj   +1 more source

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