Investigation of Transmission Line Overvoltages and their Deduction Approach

Authors: A. Hayati Soloot, A. Gholami, E. Agheb, A. Ghorbandaeipour, P. Mokhtari

Abstract:

The two significant overvoltages in power system, switching overvoltage and lightning overvoltage, are investigated in this paper. Firstly, the effect of various power system parameters on Line Energization overvoltages is evaluated by simulation in ATP. The dominant parameters include line parameters; short-circuit impedance and circuit breaker parameters. Solutions to reduce switching overvoltages are reviewed and controlled closing using switchsync controllers is proposed as proper method. This paper also investigates lightning overvoltages in the overhead-cable transition. Simulations are performed in PSCAD/EMTDC. Surge arresters are applied in both ends of cable to fulfill the insulation coordination. The maximum amplitude of overvoltages inside the cable is surveyed which should be of great concerns in insulation coordination studies.

Keywords: Switching Overvoltage, Lightning Overvoltage, Insulation Coordination, ATP, PSCAD/EMTDC.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1072429

References:

[1] K. Ngamsanroaj and W. Tayati," An analysis of switching overvoltages in the EGAT 500 kV transmission system", in proc. 2003 IEEE Conference on Power Engineering, pp. 149-153.
[2] A. I. Ibrahim and H. W. Dommel, "A Knowledge Base for Switching Surge Transients", in proc. Intr. Conf. on Power Systems Transients (IPST-05),Montreal, Canada, 2005, paper 50.
[3] M. Sanaye-Pasand, M.R. Dadashzadeh and M. Khodayar, "Limitation of transmission line switching overvoltages using switchsync relays", in proc. Intr. Conf. on Power Systems Transients (IPST-05), Montreal, Canada, 2005, paper 87.
[4] "Controlled Switching Application Guide", Edition 1, ABB., 2004.
[5] B. Gustavsen and A. Semlyen, "Calculation Of Transmission Line Transients Using Polar Decomposition", IEEE Trans. on Power Delivery, vol. 13, pp. 855-862, July 1998.
[6] P.C. Magnusson, "Traveling Waves on Multi-Conductor Open-Wire Lines-A Numerical Survey of the Effects of Frequency Dependence of Modal Composition", IEEE Trans. on Power Apparatus and systems, PAS-92, pp. 999-1008, May 1973.
[7] T. Henriksen, B. Gustavsen, G. Balog, and U. Baur," Maximum Lightning Overvoltage along a Cable Protected by Surge Arresters", IEEE Trans. Power Delivery, vol. 20, pp. 859-866, April 2005.
[8] J. A. Martinez and F. Gonzalez-Molina, "Surge protection of underground distribution cables", IEEE Trans. Power Delivery, vol. 15, pp. 756-763, April 2000.
[9] B. Gustavsen and J. Mahseredjian," Simulation of Internal Overvoltages on Transmission Lines by an Extended Method of Characteristics Approach", IEEE Trans. Power Delivery, vol. 22 ,pp 1736-1742, July 2007.
[10] B. Gustavsen and A. Semlyen, "Simulation of transmission line Transients using vector fitting and modal decomposition", IEEE Trans. Power Delivery, vol. 13, pp. 605-614, April 1998.
[11] H. Saadat, Power System Analysis, McGraw-Hill, 1999, pp. 112-127.
[12] H,Koch and T.Hillers," Second generation gas-insulated line", IEEE Power Engineering Journal, vol.16, pp 111-116, Jun 2002.