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Wyszukujesz frazę "switching compensators" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
On Some Properties of Instantaneous Active and Reactive Powers
Autorzy:
Czarnecki, L. S.
Powiązania:
https://bibliotekanauki.pl/articles/262612.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:
active power filters
CPC theory
harmonics
non-sinusoidal systems
switching compensators
Opis:
Some features of the instantaneous active and reactive powers p and q , not reported earlier, are discussed in this paper. It is shown that oscillating components and of these powers may not depend on the order of the load current harmonic. It was shown, moreover, that a load supplied with a nonsinusoidal voltage may not be distinguished in terms of p and q powers from a harmonics generating load (HGL) supplied with a sinusoidal voltage. This observation is important for compensator control. Also it was shown that the instantaneous reactive power q cannot be interpreted as a measure of amount of energy exchanged between supply lines of a load or as amount of energy rotating around such lines, as it was suggested in some publications on the IRP p-q Theory. A phenomenon of energy rotation or exchange between lines does not exist.
Źródło:
Electrical Power Quality and Utilisation. Journal; 2013, 16, 1; 11-17
1896-4672
Pojawia się w:
Electrical Power Quality and Utilisation. Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Currents physical components theory and p-q power theory in the control of the three-phase shunt active power filter
Autorzy:
Firlit, A.
Powiązania:
https://bibliotekanauki.pl/articles/262629.pdf
Data publikacji:
2007
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Tematy:
active power filter
power theory
p-q power theory
CPC power theory
switching compensators
electric power quality
Opis:
This paper presents the comparison among the control algorithms of a three phase, three wire shunt active power filter. The control algorithms are based on: 1) the current's physical components theory, 2) the p-q power theory. The active power filter operation under the distorted supply voltage at the point of common coupling condition is considered. The comparison concerns the aspects of: filtering current harmonics, reactive power compensation (defined in the fundamental harmonic domain), supply current balancing and dynamic performance. The results of the laboratory investigation, using the fast prototyping system dSPACE, are given in the paper. This paper confirms that the current's physical components theory allows developing the control algorithm of shunt active power filter and its practical implementation. The investigation allows the conclusion that this control algorithm enables achieving the supply system current shape close to the sinusoidal, despite shunt active power filter operation under the distorted supply voltage. A sinusoidal supply current cannot be attained by the control algorithm based on the p-q power theory without some additional control elements, such as: PLL, signal filters, etc. The experiment also has shown that the control algorithm based on the p-q power theory is easier to implement and less demanding in terms of hardware than the control algorithm based on the current's physical components theory.
Źródło:
Electrical Power Quality and Utilisation. Journal; 2007, 13, 1; 59-66
1896-4672
Pojawia się w:
Electrical Power Quality and Utilisation. Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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