Inclusion of the Gary and Skilling-Humoto represetnations in three-phase transmission line modelos: Aplications in electromagnetic transient simulations in power systems

• Grant number: 12/05101-7
• Support Opportunities: Scholarships in Brazil - Doctorate
• Effective date (Start): June 01, 2012
• Effective date (End): February 28, 2014
• Field of knowledge: Engineering - Electrical Engineering - Power Systems
• Principal Investigator: Sérgio Kurokawa
• Grantee: Rodrigo Cleber da Silva
• Host Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil

Abstract

In this project will be developed a three-phase transmission line model that takes into account the corona effect. The model will be developed directly in the time domain and it will be based on the assumption that a small segment of three-phase line can be represented by a circuit consisting of lumped elements (resistance, inductance, capacitance and conductance). The implementation of the corona effect in the line model will be based on models of Gary and Skilling-Umoto that, currently, is used to insert the corona effect in models of single-phase transmission lines. The model to be developed can be used to represent generic three-phase lines, regardless of the same geometry in electromagnetic transient simulations that can occur in power systems. The great contribution that will result from development of this project will be providing a more complete model line that the models currently available for the proposed model can be applied to any three-phase line, regardless of the geometry of it, and take into account the corona effect on line, which is responsible for distortion in the waveform of currents and voltages which propagate along the same during the occurrence of disturbances. A more accurate model line, which provides for such distortions may be useful in the analysis of the protection system, allowing a more precise adjustment and increasing the reliability of the electric power system.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SILVA, Rodrigo Cleber da. Inclusão das representações de gary e de skilling-umoto em modelos de linhas de transmissão trifásicas: Aplicação em simulações de transitórios eletromagnéticos em sistemas de energia elétrica. 2015. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Engenharia. Ilha Solteira Ilha Solteira.