Research on Calculation Method of Ion Flow Field under Multi-circuit HVDC Transmission Lines

Author

Li, Wei ; Zhang, Bo ; He, Jinliang ; Zeng, Rong ; Chen, Shuiming

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing

fYear

2009

fDate

12-16 Jan. 2009

Firstpage

133

Lastpage

136

Abstract

The corona effect of HVDC transmission lines affects the electromagnetic environment significantly. A numerical method to calculate the ion flow field caused by corona effect in the vicinity of multi-circuit HVDC transmission lines is described. Deutsch assumption, a commonly used simplification in traditional numerical methods is eliminated. Skills of initial value estimation and boundary process are introduced to improve the stability and efficiency of calculation. Bundle conductors and ground wires are taken into account in this simulation model. The ion flow field of a plusmn500 kV HVDC project with bipolar lines on the same tower is simulated. The electrical field and ion current density on ground level are compared among different line arrangements.

Keywords

HVDC power transmission; corona; power transmission lines; boundary process; bundle conductors; corona effect; electromagnetic environment; ground wires; initial value estimation; ion flow field calculation method; multicircuit HVDC transmission lines; transmission tower; voltage -500 kV to 500 kV; Conductors; Corona; Current density; Electromagnetic fields; HVDC transmission; Iterative algorithms; Poisson equations; Power engineering and energy; Space charge; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2009 20th International Zurich Symposium on

Conference_Location

Zurich

Print_ISBN

978-3-9523286-4-4

Type

conf

DOI

10.1109/EMCZUR.2009.4783408

Filename

4783408