Mitigation of voltage flicker by superconducting synchronous Condenser (SUPERVAR)

• Autorzy: Tsai S. S. , Liu Y. , Ingram M. R.
• Języki publikacji: EN

Abstrakty

EN

Voltage flicker caused by the electric arc furnace (EAF) and the mitigation using the superconducting synchronous condenser (SuperVAR) by the American Superconductor Corp. are considered in this paper. The modeling of EAF, SuperVAR and the system used are discussed. Fast reactive power support to reduce voltage flicker problem by an EAF is desirable. The voltage fluctuation amplitude is used as an index to evaluate the effectiveness of SuperVAR for two different MVar levels. At the PCC (point of common coupling) bus, the application of the SuperVAR can improve the voltage flicker by 6% and 19% by applying DC1A type and AC4A type exciter to the SuperVAR. With an DC1A type exciter, the SuperVAR can output only between +1 and -2 MVAR and with an AC4A type exciter the SuperVAR can provide its full rated power (8MVAR) to the system, making the voltage flicker a less severe.

Słowa kluczowe

EN

superconductivity; synchronous condenser; voltage flicker; power quality

• Wydawca: AGH University of Science and Technology ; Lodz University of Technology
• Czasopismo: Electrical Power Quality and Utilisation. Journal
• Rocznik: 2005
• Tom: Vol. 11, nr 1
• Strony: 39--44
• Opis fizyczny: bibliogr. 8 poz.

Twórcy

autor

Tsai S. S.

• Department of Elekctrical Engineering at Virginia Tech.

autor

Liu Y.

• Department of Elekctrical Engineering at Virginia Tech.

autor

Ingram M. R.

• Tennessee Valley Authority, USA

Bibliografia

• 1. Dugan R.C., Mcgranaghan M.F., and Beaty H . W. : Electrical power systems quality. McGraw-Hill, 1996.
• 2. Kalsi S.S., Weeber K., Takesue H., Lewis C, NcumueIIer H. - W., and BIaugher R. D . : Development status of rotating machines employing superconducting field windings. In Proceedings of the lEEE, Ocr. 2004.
• 3. Bradshaw D., Grant I., Ingram M., Kalsi S., Madura D., and Ross M.: TVA Demonstration of "SuperVAR" Dynamic Synchronous Condenser. In EPRI Delivery Applications of Superconductivity Task Group, New York, NY, Oct. 2003.
• 4. KaIsi S.: Performance of Superconducting Generators in a Utility Grid. In Power Delivery Applications for Superconducti vity in EPRI Working Group Meeting, Leorninster, MA, Sep. 2002.
• 5. Zhang T. and Markram E. B . : An Adaptive Arc Furnoce Model. IEEE Trans. Power Delivery, 15, pp. 931-9, Jul. 2000.
• 6. Zhang L., Liu Y., Ingram M.R., Bradshaw D . T., Eckroad S., and Crow M. L .: EAF Voltage
• 7. Flicker Mitigation By FACTS/ESS. In Power System Conference & Exposition, New York, NY, Oct, 2004.
• 8. IEEE Recommended Praetice for Excitation System Models for Power System Stability Studies: IEEE, 1992.
• 9. Power Techonologies Inc., "PSS/E 29 User Manual," in Volume II: Program Application Guide, 2002.