The Estimation of the Current-Density Distribution in a Moving Arc Root Using the ART Algorithm

Author

Xu, Tiejun ; Rong, Mingzhe ; Wu, Yi ; Ma, Qiang ; Wang, Xiaohua

Author_Institution

State Key Lab. of Electr. Insulation & Power Equip., Xi´´an Jiaotong Univ., Xi´´an

Volume

37

Issue

7

fYear

2009

fDate

7/1/2009 12:00:00 AM

Firstpage

1311

Lastpage

1317

Abstract

This paper mainly contributes to the estimation of 2-D current-density distribution in a moving arc root. For this purpose, the multiple-split-cathode-with-different-slit-angle method is used to perform measurements of the linear current distribution of the arc root in seven different directions. On the basis of the measurement results, a large system of linear algebraic equations is treated with the algebraic-reconstruction-technique algorithm to obtain the 2-D current density. The calculation results indicate that the transverse profile of current density in a moving arc root can be characterized by a high-current core with two low-current hysteretic wings and that the maximum current density tends to the fore part of it.

Keywords

arcs (electric); current density; hysteresis; plasma flow; plasma transport processes; 2D current-density distribution estimation; ART algorithm; algebraic reconstruction technique algorithm; high-current core; linear algebraic equations; low-current hysteretic wings; moving arc root; multiple split cathode; slit angle; transverse profile; Algebraic-reconstruction-technique (ART) algorithm; arc root; current-density distribution; split-electrode method;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2009.2021059

Filename

5067324