The propagation of transient overvoltages along lossy overhead multiconductor transmission lines is investigated. The corona phenomenon is considered and accurately modeled by means of a nonlinear dynamic capacitance which simulates the nonlinear behavior of the q-v hysteretic loop and accounts for the losses associated with its area. Furthermore the ground losses are accounted for and simulated by means of the Carson theory, since the slow transient approximation is well-posed in the frequency range of interest. By means of an efficient Finite Element Time Domain method, the propagation of surges along a real power overhead lines is studied in order to investigate the effects of the distributed nonlinearities.
Corona and Ground Losses Influence on Surge Propagation in Multiconductor Power Lines / Araneo, Rodolfo; Lauria, Stefano. - STAMPA. - 2:(2002), pp. 1091-1096. (Intervento presentato al convegno EMC Europe 2002, International Symposium on Electromagnetic Compatibility tenutosi a Sorrento, Italy nel September 9-13, 2002).
Corona and Ground Losses Influence on Surge Propagation in Multiconductor Power Lines
ARANEO, Rodolfo;LAURIA, Stefano
2002
Abstract
The propagation of transient overvoltages along lossy overhead multiconductor transmission lines is investigated. The corona phenomenon is considered and accurately modeled by means of a nonlinear dynamic capacitance which simulates the nonlinear behavior of the q-v hysteretic loop and accounts for the losses associated with its area. Furthermore the ground losses are accounted for and simulated by means of the Carson theory, since the slow transient approximation is well-posed in the frequency range of interest. By means of an efficient Finite Element Time Domain method, the propagation of surges along a real power overhead lines is studied in order to investigate the effects of the distributed nonlinearities.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
