A Calculation Method for the Electric Field Under Double-Circuit HVDC Transmission Lines

• Published in: IEEE transactions on power delivery Vol. 23; no. 4; pp. 1736 - 1742
• Main Authors: Yong Yang, Yong Yang, Jiayu Lu, Jiayu Lu, Yinzhao Lei, Yinzhao Lei
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.10.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Calculation; Corona; Coronas; Direct current networks; double-circuit HVDC transmission lines on the same tower; electric field; Electric fields; Electric power distribution; Electric power generation; Electric variables measurement; Electrical engineering. Electrical power engineering; Electrical power engineering; Equations; Exact sciences and technology; Grounds; HVDC transmission; lateral distribution; Mathematical analysis; maximal values; measurement; Miscellaneous; pole arrangement schemes; Poles; Poles and towers; Power engineering and energy; Power networks and lines; Power transmission; Power transmission lines; Space charge; Transmission line measurements; Transmission lines; Electric energy transportation; double-circuit HVDC transmission lines on the same tower; maximal values; lateral distribution; Experimental study; measurement; HVDC power transmission; Engineering design; Electric field; Ground surface; Calculation; High voltage line; Mathematical simulation; corona; pole arrangement schemes; Comparative study; Power transmission line
• ISSN: 0885-8977; 1937-4208
• DOI: 10.1109/TPWRD.2008.923051

A calculation method for the electric field over the ground surface under double-circuit HVDC transmission lines is proposed to satisfy the engineering design requirement. A comparison of the calculation results with the experimental measurement results finds that the maximal values and lateral distributions of the electric field over the ground surface under this type of line are obviously affected by different pole arrangement schemes and unequal corona onset electric fields of the positive and negative poles, and the maximal values and lateral distributions of the electric field over the ground surface under this type of line with diversified pole arrangement schemes can be predicted by using this method.