On Load Single Phase Solid State Tap Changer

Year 2016, Volume: 2 Issue: 2, 29 - 33, 22.06.2016

Mohammad H. Taha

https://doi.org/10.19072/ijet.36819

Abstract

In electric energy transmission and distribution system, voltage control is an essential part to maintain proper voltage limit at the consumer’s terminal. On-load tap-changers are indispensable in regulating power transformers used in electrical energy networks and industrial applications. General switching principles and application for the On-load tap-changers are discussed and presented. A single phase Tap-Changer using a GTO with antiparallel thyristor to perform switching of one upward or downward transition is described. in this paper. The logic of operation, simulation and experimental results for resistive, inductive loads are presented.

Keywords

Voltage control, thyristors, tap-changer, loads

References

• Feinberg, R “Modern Power Transformer Practice” Macmillan Press Ltd 1979.
• O’kelly, D and Musgrave G: “An Appraisal of Transformer Tap-Changing Technique” IEE conference publication, No.137 pp 105-109 January 1973.
• Plessis, A F “ Microprocessor Based Power Transformer Voltage Control Scheme” IFAC Symp, Pretoria, South Africa, pp165-172, September 1980.
• H. Jiang, R. Shuttleworth, B. A. T. Al Zahawi, X. Tian, and A. Power,“Fast response GTO assisted novel tap-changer,” IEEE Trans. Power, Del., vol. 16, no. 1, pp. 111–115, Jan. 2001.
• R. Shuttleworth, X. Tian, C. Fan, and A. Power, “New tap changing scheme,” Proc. Inst. Elect. Eng., Electic Power Applications, vol. 143,no. 1, pp. 108–112, Jan. 1996.
• J. Harlow, “Discussion of (Fast response GTO assisted novel tap changer),” IEEE Trans. Power Del., vol. 16, no. 4, pp. 826–827, Oct. 2001.
• G. H. Cooke and K. T. Williams, “Thyristor assisted on-load tap-changers for transformers,” in Proc. 4th Int. Conf. Power Electronics and Variable-Speed Drives, Jul. 1990, pp. 127–131.
• “New thyristor assisted diverter switch for on-load transformer tap-changers,” Proc. Inst. Elect. Eng., Electric Power Applications, vol.139, no. 6, pp. 507–511, Nov. 1992.
• T. Larsson, R. Innanen, and G. Norstrom, “Static electronic tap-changer for electric machines and voltage control,” in Proc. IEEE Fast Phase and Drives Conf., May 1997, pp. TC3/4.1–TC3/4.3.
• V. Sanchez, R. Echavarria, M. Cotoragea, and A. Claudio, “Design and implementation of a fast on-load tap-changing regulator using soft-switching commutation techniques,” in Proc. PESC , Jun. 2000, pp. 488–493.
• R. Echavarria, V. Sanchez, M. Ponce, M. Cotorogea, and A. Claudio,“Analysis and design of a quasiresonant fast on-load tap changing regulator,”J. Circuit, Syst, Comput., vol. 13, no. 4, Aug. 2004.
• R. Echavarria, V. Sanchez, M. Ponce, A. Claudio, and M. Cotorogea, “Parametric analysis of a quasiresonant fast on-load tap-changing regualtor,” in Proc. PESC, 2002, pp. 1809–1814.