Three- phase four-wire circuits interpretation by means of different power theories

• Autorzy: Marafao F. P. , Liberado E. V. , Paredes H. K. M. , da Silva L. C. P.

Warianty tytułu

PL

Interpretacja obwodów trójfazowych, czteroprzewodowych za pomocą różnych teorii mocy

• Języki publikacji: EN

Abstrakty

EN

In order to contribute to the discussion of defining a generalized power theory, valid for unbalanced and non linear circuits, this paper discusses the relationship and discrepancies among four modern power theories. Three-phase four-wire circuits have been analyzed, since the most conflicting and intriguing interpretations take place in case of return conductor occurrence. Simulation results of different load, power supply and line conditions will be discussed in order to elucidate the author's conclusions and to provoke the readers for additional discussions.

PL

Przedmiotem artykułu są wzajemne powiązanie i rozbieżności pomiędzy czterema aktualnymi teoriami mocy obwodów nieliniowych i niezrównoważonych. W artykule analizowane są obwody trójfazowe, czteroprzewodowe, gdyż najwięcej różnic interpretacyjnych pojawia się w związku z obecnością przewodu zerowego. Aby pobudzić dyskusję, w artykule przedstawiono wyniki modelowania różnych obciążeń i źródeł zasilania.

Słowa kluczowe

EN

non-sinusoidal systems; power factor; power theories; unbalanced circuits

PL

niesinusoidalne; współczynnik mocy; teorie mocy; obwody niezrównoważone

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 1
• Strony: 28--33
• Opis fizyczny: . Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Marafao F. P.

autor

Liberado E. V.

autor

Paredes H. K. M.

autor

da Silva L. C. P.

• Unesp- Univ Estadual Paulista, Campus of Sorocaba, Av. Tres de Marco, 511, 18085-180, Sorocaba, SP, Brazil,

Bibliografia

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• [16] W. G. Morsi, and M. E. El-Hawary, "Defining power components in nonsinusoidal unbalanced polyphase systems: the issues," IEEE Trans. Power Delivery, 22 (2007), No. 4, 2428-2438
• [17] F. P. Marafao, H. K. M. Paredes, L. C. P. da Silva, "Critical evaluation of FBD, PQ and CPT current decompositions for four-wire circuits", Proc. of the Brazilian Power Electronics Conference, (2009)
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