Analysis of Corona Onset Electric Field Considering the Effect of Space Charges

Author

Lu, Tiebing ; Xiong, Gaolin ; Cui, Xiang ; Rao, Hong ; Wang, Qi

Author_Institution

Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Beijing, China

Volume

47

Issue

5

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

1390

Lastpage

1393

Abstract

A modified method based on the optimized charge simulation method (CSM) is used to predict the corona onset voltage and electric field when the space charges due to the corona are considered. Based on the streamer model of corona discharge, space charges generated near the conductors are predicted. In order to calculate the electric field at the conductor surface, space charges are replaced by some equivalent line charges near the conductor. Because of the existence of space charges, the corona onset electric field is changed a little. After a simplified model of actual power transmission lines is introduced with the help of rough coefficient, the corona onset voltage and corona onset electric field are calculated for different types of conductors finally.

Keywords

corona; plasma simulation; plasma transport processes; space charge; corona discharge; corona onset electric field analysis; corona onset voltage field; optimized charge simulation method; power transmission line; rough coefficient; space charge effect; streamer model; Conductors; Corona; Discharges; Electric fields; Power transmission lines; Space charge; Wires; Corona; electric field; space charge; transmission lines;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2010.2081972

Filename

5587896