Currents' Physical Components (CPC) in Circuits with Nonsinusoidal Voltages and Currents. Part 2: Three-Phase Three-Wire Linear Circuits

• Autorzy: Czarnecki L. S.
• Języki publikacji: EN

Abstrakty

EN

This paper summarizes the present state of discussions on power phenomena, power definitions and compensation in three-phase three-wire linear circuits with nonsinusoidal voltages and currents. In particular, definitions of the arithmetic and geometric apparent powers are discussed. It is shown that these two powers result in an erroneous value of power factor of unbalanced loads even if voltages and currents are sinusoidal. A reasoning that leads to a right selection of the apparent power definition is presented as well. The paper also presents the con-cept of the three-phase current decomposition into Currents' Physical Components (CPC) and its application for power definitions and compensation in three-phase circuits.

Słowa kluczowe

EN

power definition; power phenomena; apparent; reactive; scattered; unbalanced currents or powers

• Wydawca: AGH University of Science and Technology ; Lodz University of Technology
• Czasopismo: Electrical Power Quality and Utilisation. Journal
• Rocznik: 2006
• Tom: Vol. 12, nr 1
• Strony: 3--13
• Opis fizyczny: Bibliogr. 6 poz.

Twórcy

autor

Czarnecki L. S.

• ECE, Louisiana State University, Baton Rouge, LA 70803, USA,

Bibliografia

• 1. The New IEEE Standard Dictionary of Electrical and Electronics Terms, Institute of Electrical and Electronics Engineers, Inc., New York, (1997).
• 2. Buchhol z F.:Die Drehstrom-Scheinleistung einungleichmebiger Belas-tung drei Zweige. Licht und Kraft, No. 2, January 1922, pp. 9.11.
• 3. Akagi H., and Nabae A.: The p-q theory in three-phase systems under non-sinusoidal conditions. Europ. Trans. on Electrical Power, ETEP, Vol. 3, No. 1, January/February 1993, pp. 27.31.
• 4. Czarnecki L. S.: Orthogonal decomposition of the current in a three-phase non-linear asymmetrical circuit with nonsinusoidal voltage. IEEE Trans. Instr. Measur., Vol. IM-37, No. 1, March 1988, pp. 30.34.
• 5. Czarnecki L. S.: Comparison of the Instantaneous Reactive Power, p-q, Theory with Theory of Currents. Physical Components. Archiv für Elektrotechnik, Vol. 85, No. 1., Feb. 2003, pp. 21.28.
• 6. Czarnecki L. S.: On some misinterpretation of the Instantaneous Reactive Power, p.q, Theory. IEEE Trans. on Power Electronics, Vol. 19, No. 3, 2004, pp. 828.836.