DocumentCode :
7238
Title :
Resultant Electric Field Reduction With Shielding Wires Under Bipolar HVDC Transmission Lines
Author :
Feng Tian ; Zhanqing Yu ; Rong Zeng ; Han Yin ; Bo Zhang ; Lei Liu ; Min Li ; Ruihai Li ; Jinliang He
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Volume :
50
Issue :
2
fYear :
2014
fDate :
Feb. 2014
Firstpage :
221
Lastpage :
224
Abstract :
A time-domain method is presented to solve the dc ion flow field in bipolar transmission lines under which shielding wires are built to reduce the resultant electric field. In this method, the charge simulation method, the finite element method, and the finite volume method are used to solve the space-charge-free electric field, ion flow field, and current continuity equation, respectively. The method is validated by measurement results. Meanwhile, the shielding effect is explained theoretically from three aspects: the nominal electric field distribution, space charge injection, and space charge distribution. The ion filed formation can be illustrated clearly with this method. Relationships between configurations of transmission line and shielding wires are evaluated on the basis of calculation results.
Keywords :
HVDC power transmission; charge injection; electromagnetic shielding; finite element analysis; finite volume methods; power transmission lines; space charge; time-domain analysis; wires (electric); DC ion flow field; bipolar HVDC transmission line; charge simulation method; current continuity equation; electromagnetic shielding; finite element method; finite volume method; nominal electric field distribution; resultant electric field reduction; shielding wire effect; space charge distribution; space charge injection; space-charge-free electric field; time-domain method; Electric potential; Equations; HVDC transmission; Mathematical model; Space charge; Time-domain analysis; Wires; Electromagnetic shielding; high-voltage dc transmission; numerical simulation; time-domain analysis;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2013.2281402
Filename :
6749006
Link To Document :
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