Search results for "Harmonic Emission"

showing 3 items of 3 documents

Comparison of two different approaches for harmonic distortion sources assessment

2021

The paper focuses the attention on the comparison of two approaches for power quality assessment in the electric grid. Both approaches are suitable for investigating the harmonic pollution source and discovering if the harmonic source comes from the customer or the utility grid. The two approaches have the same purpose but they are deeply different. The first approach is based on the knowledge of the customer and utility equivalent impedance while the second is based on single point measurement at point of common coupling PCC. In this paper, the advantages and drawbacks of the two approaches are investigated also supported by a case study.

Total harmonic distortionHarmonic pollutionComputer scienceElectronic engineeringHarmonicPower qualityPoint of common couplingSingle pointGridEquivalent impedance transformsHarmonic Emission IEEE Std. 1459-2010 Power QualitySettore ING-INF/07 - Misure Elettriche E Elettroniche
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Generation of even harmonics of sub-THz radiation in bulk GaAs in the presence of a static electric field

2007

The static electric field effects on nonlinear carrier dynamics in low-doped GaAs bulk under the influence of an intense sub-terahertz field are studied by a three-dimensional multivalleys Monte Carlo simulation. The conversion efficiency is calculated by using the appropriate Maxwell equation for the propagation of an electromagnetic wave along a given direction in the medium. Production of odd and even harmonics due to the nonlinearity of the velocity-field relation is investigated.

Electromagnetic fieldPhysicsElectromagnetic wave equationField (physics)Linear polarizationbusiness.industryNear and far fieldOptical fieldAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsComputational physicsOpticsModeling and SimulationHarmonicsElectric fieldHarmonic emission Static field effect Subterahertz radiationElectrical and Electronic EngineeringbusinessJournal of Computational Electronics
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Measurement of Simplified Single- And Three-Phase Parameters for Harmonic Emission Assessment Based on IEEE 1459-2010

2021

This article investigates the feasibility of using a simplified approach, based on the measurement of power ratio parameters, for harmonic emissions assessment at the point of common coupling (PCC). The proposed approach comes from the common concept of power factor correction and the definitions of the IEEE Std. 1459-2010, where line utilization and harmonic pollution levels are evaluated by means of ratios between the power quantities of the apparent power decomposition. In addition to the IEEE Std. 1459–2010 indicators, in this article, the behavior is studied of additional parameters that are conceptually similar to those defined by the IEEE Std. 1459-2010. The suitability of such param…

Computer sciencepower measurement02 engineering and technologyPower factorHarmonic distortionlaw.inventionHarmonic analysisElectric power systemControl theorylawpower definitions0202 electrical engineering electronic engineering information engineeringElectrical and Electronic EngineeringInstrumentationuncertainty analysisIEEE Std. 1459-2010020208 electrical & electronic engineeringharmonic emissionAC powerpower qualityPower (physics)CapacitorThree-phaseHarmonicharmonic analysisparameter estimationSettore ING-INF/07 - Misure Elettriche E Elettroniche
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