Development of an airline model with non-uniform parameters for coordination studies of isolation

Abstract

The modeling of the corona effect, the stresses induced by indirect atmospheric discharges and the non uniformity of parameters in transmission lines have been modeled efficiently, usually separately, in studies that involve knowledge of the response of lines to transient disturbances. In this article, we present a line model that includes these phenomena simultaneously and with a high degree of precision. The dependence on the frequency of the parameters of the transmission line was considered. The consolidated model makes use of the wide variety of simulation structures available today, appropriately identifying the critical aspects in each of the phenomena to be evaluated. Sensitivity analyzes were carried out and evaluations of the main characteristics of each of the phenomena with the aim of validating the responses obtained before a set of selected disturbances. Good concordance was observed between the answers obtained and the expected theoretical answers.