Title :
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
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;
Conference_Titel :
Electromagnetic Compatibility, 2009 20th International Zurich Symposium on
Conference_Location :
Zurich
Print_ISBN :
978-3-9523286-4-4
DOI :
10.1109/EMCZUR.2009.4783408
