Representation of transmission lines through a cascade of PI circuits: Analysis of the performance of this model through comparisons with Universal Line Model

• Grant number: 09/01577-4
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2009
• End date: August 31, 2010
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Sérgio Kurokawa
• Grantee: Anderson Ricardo Justo de Araújo
• Host Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil

Abstract

The objective of this project is to analyze the performance of a transmission line model where the line is represented through a cascade of PI circuits. This model is developed starting from the hypothesis that the distributed parameters of the line can be approximated by discreet element of circuits . The performance of the cascade of PI circuits will be done by comparing this model with a Universal Line Model. The Universal Line model is developed taking into account the distributed parameters of the line and the frequency effect. In the Universal Line Model the currents and voltages are initially calculated in the frequency domain and after that they are converted to time domain by using Inverse Laplace transform. By comparing the cascade of PI circuits and Universal Line Model will be possible to know the situations where the cascade of PI circuits can be used to represent a single-phase line.