SIMULATION OF TRANSIENTS ON TRANSMISSION-LINES WITH CORONA VIA THE METHOD OF CHARACTERISTICS

Fast transients on power transmission systems, such as those produced by lightning and faults, are usually modelled by the Telegrapher's Equ ations. Because of corona, these equations are often nonlinear. It has long been recognised that the method of characteristics provides cons iderable advantages in dealing with these equations. To the best of th e authors' knowledge, the first successful application of the eigenvec tor method of characteristics to nonlinear transients on lines is repo rted in this paper. In its present stage, the method described here ca n handle only single-phase lines with a static representation of coron a. Nevertheless, this method lends itself to extensions that permit th e handling of polyphasic lines, as well as the inclusion of dynamic co rona models.