Influence of AC Voltage on the Positive DC Corona Current Pulses in a Wire-cylinder Gap  

作　　者：Zhenguo Wang Tiebing Lu Xiang Cui Xuebao Li Huseyin Hiziroglu 

机构地区：[1]State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,the North China Electric Power University,Beijing,102206,China [2]Department of Electrical and Computer Engineering,Kettering University,Flint,Michigan,48504,USA

出　　处：《CSEE Journal of Power and Energy Systems》2016年第4期58-65,共8页中国电机工程学会电力与能源系统学报（英文）

基　　金：supported by National Basic Research Program of China(973 Program)under Grant 2011CB209402.

摘　　要：In the development of hybrid HVDC and HVAC transmission lines,the study of radio interference is an important issue.Positive corona current pulses from high voltage transmission lines are the main source of radio interference.In this paper,the design of a wire-cylinder gap electrode system is presented to study the influence of AC voltage on the characteristics of positive corona current pulses.The study shows that the mode of the current pulses is different from that of either DC or AC corona discharge.Waveform parameters of the pulses,such as rise time,half wave time,duration time,repetition rates,average amplitude,and time intervals of secondary pulses are all statistically analyzed in this study.The empirical formulas for the repetition rates with different AC voltages are presented.A theoretical explanation based on an ion cloud model is given to reveal the mechanism behind the influence of AC voltage on positive corona discharge.The experimental results could provide some references for the prediction of radio interference from hybrid AC/DC transmission lines.

关 键 词：AC voltage corona discharge current pulses positive DC corona radio interference 

分 类 号：TN9[电子电信—信息与通信工程]