Results 11 to 20 of about 204,577 (297)

Irregular Orbits Generate Higher Harmonics [PDF]

open access: yesPhysical Review Letters, 1999
The spectrum of higher harmonics in atoms calculated with a uniformized semiclassical propagator is presented and it is shown that higher harmonic generation is an interference phenomenon which can be described semiclassically. This can be concluded from the good agreement with the quantum spectrum.
van de Sand, G., Rost, J.
openaire   +5 more sources

The Performance of the High-Current Transformer during Operation in the Wide Frequencies Range

open access: yesEnergies, 2022
This paper presents the performance of the 26 kVA inductive high-current transformer (HCT) during operation in the frequencies range of transformed harmonics from 50 Hz to 5 kHz.
Michal Kaczmarek   +2 more
doaj   +1 more source

Bosonization on a lattice: The emergence of the higher harmonics [PDF]

open access: yesPhysical Review B, 1995
A general and transparent procedure to bosonize fermions placed on a lattice is presented. Harmonics higher than $k_F$ are shown to appear in the one-paticle Green function, due to the compact character of real electron bands. Quantitative estimations of the role of these higher harmonics are made possible by the bosonization technique presented here.
Ferrer, J.   +3 more
openaire   +4 more sources

Optimal location and sizing of capacitor banks in distribution networks to reduce harmonic distortion and improve voltage profile using genetic algorithm [PDF]

open access: yesTehnika, 2017
This paper considers the problem of determination of optimum locations and sizes of capacitor banks (CB) for reactive power compensation in distribution systems to reduce harmonic distortion and improve voltage profile.
Milovanović Miloš J.   +2 more
doaj   +1 more source

Evaluation and Procedure for Estimation of Interharmonics on the Example of Non-Sinusoidal Current of an Induction Motor With Variable Periodic Load

open access: yesIEEE Access, 2021
The paper describes problem of isolating, evaluating and eliminating interharmonics of current using the example of the operation of an asynchronous electric motor operating at a variable periodic load. The complexity of the problem lies in the fact that
Boris A. Avdeev   +4 more
doaj   +1 more source

Improving the quality of electricity in the power supply systems of the mineral resource complex with hybrid filter-compensating devices

open access: yesЗаписки Горного института, 2021
The urgency and necessity of choosing and justifying the structures of hybrid filter-compensating devices based on series and parallel active filters to improve the quality of electricity in the power supply systems of enterprises of the mineral resource
Yurii A. Sychev, Roman Yu. Zimin
doaj   +1 more source

Higher spins in harmonic superspace

open access: yesTheoretical and Mathematical Physics, 2023
20 pages, Contribution to the Proceedings of the Academician A.A. Slavnov Memorial Conference (Moscow, December 21 - 22, 202), to be published in "Theor. Math.
openaire   +2 more sources

Review of Measuring Methods, Setups and Conditions for Evaluation of the Inductive Instrument Transformers Accuracy for Transformation of Distorted Waveforms

open access: yesEnergies, 2023
In this review article, ideas for the development of measuring methods and setups to test inductive instrument transformer accuracy for the transformation of distorted current or voltage are analyzed. This article proposes limiting values for ratio error
Michal Kaczmarek, Ernest Stano
doaj   +1 more source

The Reference Wideband Inductive Current Transformer

open access: yesEnergies, 2023
The aim of this paper is to show that the developed inductive current transformer may ensure the required wideband transformation accuracy and it may be applied, as the reference source, in the measuring system for the evaluation of the transformation ...
Michal Kaczmarek   +2 more
doaj   +1 more source

Analysis of voltage and current harmonics and the risk of resonance in a network with power capacitors [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2014
The purpose of the analysis of measurement results of harmonics presented in this paper is to predict the potential dangers after installation of capacitor banks in a medium-voltage (6 kV) network of the Kolubara open pit mine.
Kostić Miloje, Georgijević Nikola
doaj   +1 more source

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