NUMERICAL MODELLING OF OVERVOLTAGES IN HIGH VOLTAGE NETWORKS

Martin Gabrišák

   Electromagnetic transients in an overvoltaged network are solved numerically using Electromagnetic Transient Program (EMTP). This is based on the method of characteristic for the transmission lines and trapezoidal numerical integration of lumped parameters. These stable methods allow to reach the reliable results fast. The basics of numerical methods used in EMTP and practical computations of a high voltage network are presented in this paper.

Keywords: electromagnetic transients, transmission lines, numerical methods, method of characteristics

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