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Statements

Subject Item
n2:RIV%2F49777513%3A23220%2F13%3A43918655%21RIV14-GA0-23220___
rdf:type
n13:Vysledek skos:Concept
dcterms:description
Share of current harmonics, which is taken from the power net, increases with the use of diode and thyristor rectifiers (so-called characteristic harmonics of current). One of the ways to minimize these harmonics is to use the active rectifier. The principle of operation of active rectifier is based on correct switching of transistors, which allows the two basic functions: a) to keep the first harmonic of current in phase with the first harmonic of voltage, power factor is approximately one, b) to achieve almost sinusoidal current, which is taken from the grid. Characteristic harmonics in the spectrum of the current, which is drawn from the grid by active rectifier, are negligible. There appear new harmonics in the spectrum of the current; these new harmonics are produced by switching frequency of transistors. These harmonics are little dependent on load. That can cause the fact that the proportional value of the examined harmonics is high, although the absolute value is actually low. This paper briefly describes the voltage-source active rectifier and its workings. The main part is devoted to results from simulations and measurements in the laboratory. Share of current harmonics, which is taken from the power net, increases with the use of diode and thyristor rectifiers (so-called characteristic harmonics of current). One of the ways to minimize these harmonics is to use the active rectifier. The principle of operation of active rectifier is based on correct switching of transistors, which allows the two basic functions: a) to keep the first harmonic of current in phase with the first harmonic of voltage, power factor is approximately one, b) to achieve almost sinusoidal current, which is taken from the grid. Characteristic harmonics in the spectrum of the current, which is drawn from the grid by active rectifier, are negligible. There appear new harmonics in the spectrum of the current; these new harmonics are produced by switching frequency of transistors. These harmonics are little dependent on load. That can cause the fact that the proportional value of the examined harmonics is high, although the absolute value is actually low. This paper briefly describes the voltage-source active rectifier and its workings. The main part is devoted to results from simulations and measurements in the laboratory.
dcterms:title
Harmonic Currents Generated by the Voltage-Source Active Rectifier Harmonic Currents Generated by the Voltage-Source Active Rectifier
skos:prefLabel
Harmonic Currents Generated by the Voltage-Source Active Rectifier Harmonic Currents Generated by the Voltage-Source Active Rectifier
skos:notation
RIV/49777513:23220/13:43918655!RIV14-GA0-23220___
n13:predkladatel
n14:orjk%3A23220
n3:aktivita
n8:P
n3:aktivity
P(GA102/09/1164), P(LH12183)
n3:dodaniDat
n12:2014
n3:domaciTvurceVysledku
n9:6958249 n9:8386315
n3:druhVysledku
n22:D
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
77068
n3:idVysledku
RIV/49777513:23220/13:43918655
n3:jazykVysledku
n23:eng
n3:klicovaSlova
Voltage-Source Active Rectifier; Harmonic Currents
n3:klicoveSlovo
n10:Harmonic%20Currents n10:Voltage-Source%20Active%20Rectifier
n3:kontrolniKodProRIV
[3BB3647059FE]
n3:mistoKonaniAkce
Istanbul
n3:mistoVydani
Istanbul
n3:nazevZdroje
IV. IEEE International Conference on Power Engineering, Energy and Electrical Drives
n3:obor
n4:JA
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:projekt
n5:GA102%2F09%2F1164 n5:LH12183
n3:rokUplatneniVysledku
n12:2013
n3:tvurceVysledku
Kůs, Václav Bilík, Petr Josefová, Tereza
n3:typAkce
n19:WRD
n3:zahajeniAkce
2013-05-13+02:00
s:issn
2155-5516
s:numberOfPages
6
n18:doi
10.1109/PowerEng.2013.6635635
n6:hasPublisher
Gazi University Istanbul
n17:isbn
978-1-4673-6392-1
n21:organizacniJednotka
23220