FDTD Method for Lightning Surge Propagation of Power Transmission Lines
Keywords:
Bewley Lattice Diagram; Finite Difference Time Domain Method; Lightning Surge; Surge Propagation; Telegraphist’s Equations; Travelling Wave.Abstract
The Telegraphist equation is a set of mathematical formulas to characterize surge propagation in power transmission lines. Two line portions of 1-km length line are used for test. The proposed FDTD method was tested with loss and lossless power transmission systems in comparison with the solution obtained by using Bewley lattice diagram. The surge voltage is decayed in practical transmission lines due to energy loss dissipation in the power lines. The results show that the FDTD method is accurate to analyze surge propagation in power transmission lines in both loss and lossless power transmission lines.
