Energization of a Half-Wavelength Transmission Line - Pre-Operational Transients Studies
- 1 ELETRONORTE -Brasília, Brazil
- 2 CHESF, Recife, Brazil
- 3 ENTE, S?o Paulo, Brazil
- 4 University of Campinas, Campinas, Brazil
- 5 State University of Feira de Santana, Feira de Santana, Brazil
- 6 University of Campinas, Campinas, Brazil
- 7 University of Campinas, Campinas, Brazil
- 8 State University of Feira de Santana, Feira de Santana, Brazil
- 9 Federal University of Bahia, Salvador, Brazil
- 10 ELETRONORTE -Brasília, Brazil
- 11 ELETRONORTE -Brasília, Brazil
- 12 ELETRONORTE -Brasília, Brazil
Abstract
In the present paper the main results of the pre-operational studies related to the energization maneuver of a Half-Wavelength Transmission Line (AC-Link), are presented. The simulations were performed in PSCAD with actual Brazilian system data. Specifically the following studies were performed: electromagnetic transient studies of energization maneuver considering no fault and the occurrence of fault along the trunk; dynamic analysis of generator units that will energize the AC-Link; TRV on the circuit-breaker that will energize the trunk. The main conclusion is that the AC-Link energization experiment can be implemented without jeopardizing or causing time-life reduction of the equipment involved in the experiment, which comprises the generator unit that will energize the trunk, the step-up transformer, the arresters that will be kept during the experiments, as well as the circuit-breaker that will energize and then trip the AC-Link.
- C. Portela, J. Silva and M. Alvim, “Non-Conventional AC Solutions Adequate for Very Long Distance Transmission-An Alternative for the Amazon Transmission System,” Proceedings of 2007 IEC/CIGRE UHV Symposium Beijing, article 2-2-5, Beijing, China, 2007, p. 29.
- F. J. Hubert and M. R. Gent, "Half-Wavelength Power Transmission Lines," Power Apparatus and Systems, IEEE Transactions on, Vol. 84, No. 10, 1965, pp. 965-974. doi:10.1109/TPAS.1965.4766125
- F. S. PrabhakAra, K. Parthasarathy and H. N. R. Rao, “Analysis of Natural Half-Wave-Length Power Transmission Lines,” Power Apparatus and Systems, IEEE Transactions on, Vol. PAS-88, No. 12, 1969, pp. 1787-1794.
- F. M. Gatta and F. Iliceto, "Analysis of Some Operation Problems of Half-wave Length Power Transmission Lines," AFRICON '92 Proceeding of 3rd AFRICON Conference, 22-24 Sep 1992, pp. 59-64.
- C. Portela, “Some Aspects of Very Long Lines Switching - CIGRE SC 13 Colloquium 1995,” Florianópolis, Brazil, 1995, p. 12.
- J. L. Alqueres and J. C. Praca, "The Brazilian Power System and the Challenge of the Amazon Transmission," in Proceedings of 1991 IEEE PES T&D Conference, pp. 315-320.
- M. C. Tavares and C. M. Portela, “Proposition of a Half-Wave Length Energization Case Test,” International Conference on Power Systems Transients (IPST’09) Kyoto, Japan, IPST 2009.
- E. C. Gomes and M. C. Tavares, "Analysis of the Energization Test of a Half-Wavelength AC-Link Composed of Similar Transmission Lines," Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific, 2011, pp. 1-5.
- Y. Song, B. Fan, Y. Bai, X. Qin and Z. Zhang, "Reliability and Economic Analysis of UHV Half-Wave-length AC Transmission," Transmission. In Power System Technology (POWERCON), 2012 IEEE International Conference on, New Zealand, Oct. 2012.
- C. M. Portela, M. C. Tavares, J. P. Filho and J. B.Gertrudes, “Earth Conductivity and Permittivity Data Measurements - Influence in Transmission Line Transient Performance,” Electric Power Systems Research, Vol. 76, No. 11, 2006, pp. 907-915. doi:10.1016/j.epsr.2005.11.006
- E. C. Gomes, M. C. Tavares and C. Floriano, "Using Conventional Protection for Line-to-ground Fault at AC-Link,” IPST, Vancouver, Canada, 2013.
- J. B. Gertrudes, E. C. Gomes and M. C. Tavares, “Circuit Breaker TRV on AC-Link Trunk with a Little More than Half-wavelength,” IPST 2013.