Comparison Between the Audible Noises Generated from Single Corona Source Under DC and AC Corona Discharge  

作　　者：Xuebao Li Xiang Cui Tiebing Lu Donglai Wang Wenzuo Ma Xingming Bian 

机构地区：[1]State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China

出　　处：《CSEE Journal of Power and Energy Systems》2015年第3期23-30,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：The corona-generated audible noise(AN)factor is an important consideration in the design and operation of ultrahigh voltage direct current(DC)and alternate current(AC)transmission lines.Due to the differences in discharge process and corona-generated space charges between the DC and AC corona discharge,the audible noise from DC and AC corona has different characteristics.This paper conducts a series of experiments by measuring the time-domain waveforms of the audible noise from a single corona source under DC and AC voltage.Sound pressure pulses are extracted from a correlation analysis,and then a detailed comparison of the basic characteristics of DC and AC corona-generated AN in time-domain and frequency spectrum is given.Results from this paper stand to contribute to an explanation of existing results in AN measurement and analysis from DC and AC transmission lines.

关 键 词：AC corona audible noise DC corona single corona source time-domain measurement 

分 类 号：O15[理学—数学]