Vol. 74

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2018-10-14

The Ionized Field Calculation Under Different Haze Weather Levels Based on Improved Upstream Meshless Method

By Bing Gao, Fan Yang, Haizhou Qian, Min Liu, Chunli Li, and Chao Liu
Progress In Electromagnetics Research M, Vol. 74, 147-157, 2018
doi:10.2528/PIERM18031205

Abstract

The haze-prone areas are usually places with limited transmission line corridors and large power loads. The performance of transmission lines is under threat of haze. The haze particulates around the transmission lines would be charged and affect the electric field near high voltage direct current (HVDC) transmission lines. Accoring to the influence mechanism of haze on ionized field, the electric perfromance of HVDC transmission lines under haze weather is dicussed. In the paper, an improved meshless local Petrov-Galerkin method (MLPG) is proposed to investigate the distribution of ionized electric field, and example of an actual transmission line is studied to verify the validation of the proposed method at first. It is proved that the proposed method agrees well with the measurements. Then the ionized field distribution under different haze weather levels is discussed, as well as the influenced factor. Results indicate that the ionized electric field and ion current density on the ground would increase under haze weather, but with the similar trends to good weather condition. Meanwhile, the haze weather levels have greater influence on the ionized electric field than ion current density, where the increase of corona and space charge are the main reasons.

Citation


Bing Gao, Fan Yang, Haizhou Qian, Min Liu, Chunli Li, and Chao Liu, "The Ionized Field Calculation Under Different Haze Weather Levels Based on Improved Upstream Meshless Method," Progress In Electromagnetics Research M, Vol. 74, 147-157, 2018.
doi:10.2528/PIERM18031205
http://www.jpier.org/PIERM/pier.php?paper=18031205

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