Propagation of surge waves on non-homogeneous transmission lines induced bylightning stroke

摘要

The paper deals with surge phenomena on non-homogeneous transmission lines. The case of surgephenomena caused by the lightning stroke is considered. The lightning is modeled as the current wave injectedby the source placed at any internal point of the line. The propagation of the surge wave induced by the lightningaffecting the overhead line and transmitting to the cable is evaluated. Problem is solved numerically in the timedomain. The efficiency and correctness of the proposed method is shown on some illustrative examples.According to the suggested algorithms is calculated the distribution of induced current and voltage along thewhole transmission line namely near to the place of the connection both lines. The manner of the linesconnectionis modeled due to various two-ports.