Title :
Application of π circuits for simulation of corona effect in transmission lines
Author :
Lessa, L.S. ; Prado, A.J. ; Kurokawa, S. ; Filho, J.P. ; Bovolato, L.F.
Author_Institution :
Dept. of Electr. Eng., Univ. of Sao Paulo State, Sao Paulo, Brazil
Abstract :
In this article, it is represented by state variables phase a transmission line which parameters are considered frequency independently and frequency dependent. Based on previous analyses, it is used the reasonable number of π circuits and the number of blocks composed by parallel resistor and inductor for reduction of numerical oscillations. It is analyzed the influence of the increase of the RL parallel blocks in the obtained results. The RL parallel blocks are used for inclusion of the frequency influence in the transmission line longitudinal parameter. It is a simple model that is been used by undergraduate students for simulation of traveling wave phenomena in transmission lines. Considering the model without frequency influence, it is included a representation of the corona effect. Some simulations are carried considering the corona effect and they are compared to the results without this phenomenon.
Keywords :
EMTP; corona; inductors; mathematical analysis; power transmission lines; RL parallel blocks; circuits; corona effect; frequency dependent; frequency independently; inductor; numerical oscillations reduction; parallel resistor; transmission line longitudinal parameter; transmission lines; traveling wave phenomena simulation; undergraduate students; Corona; Equations; Integrated circuit modeling; Mathematical model; Numerical models; Power transmission lines; Resistance; π circuit; EMTP; Electromagnetic transient; mathematical model; numeric method; simulation; transmission lines; wave traveling;
Conference_Titel :
Power and Energy Society General Meeting, 2012 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4673-2727-5
Electronic_ISBN :
1944-9925
DOI :
10.1109/PESGM.2012.6345558
