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Analysis of Dielectric Particles Charging and Motion in the Direct Current Ionized Field 被引量:3

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摘要 When evaluating the electromagnetic environment of high voltage direct current(HVDC)powers lines,a fundamental factor to consider is the ionized field at ground level.China’s rapid industrialization and urbanization has led to haze pollution episodes.Ions generated by the corona discharge on the surface of HVDC power lines can adhere to haze particles,giving rise to variations in space charge density,which then impact the ionized field.In this paper,the charging and motion characteristics of the dielectric particle are investigated.The saturation charge amount of the particle and its contribution to the charge density are calculated in the spherical coordinates using the governing equations of the electric field.The terminal setting velocity is calculated based on the Stokes flow of particles in the gravitational and electrical fields.The mobility of the charged particle is also analyzed.This paper will serve as a valuable reference for the modeling and calculation of the ionized field of HVDC transmission lines,with the presence of dielectric particles.
出处 《CSEE Journal of Power and Energy Systems》 SCIE 2016年第1期88-94,共7页 中国电机工程学会电力与能源系统学报(英文)
基金 supported in part by the Science and Technology Program of the State Grid Corporation of China under Grant GYB17201400178.
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