【摘要】：基于電聲脈沖法(PEA)的同軸電纜空間電荷測(cè)量系統(tǒng)中,耦合的脈沖直接影響空間電荷的測(cè)量波形。因而簡(jiǎn)述了基于外半導(dǎo)電層脈沖注入法的同軸電纜空間電荷測(cè)量系統(tǒng),測(cè)量了10 kV同軸電纜在不同接地點(diǎn)下的空間電荷波形。通過實(shí)驗(yàn)和仿真研究了不同接地點(diǎn)、不同電纜尺寸和不同脈沖注入?yún)^(qū)長(zhǎng)度對(duì)脈沖注入波形的影響。實(shí)驗(yàn)與仿真結(jié)果表明:注入脈沖的波形對(duì)測(cè)量的空間電荷波形有直接的影響,當(dāng)脈沖由外半導(dǎo)電層注入電纜時(shí),外半導(dǎo)電層的阻抗特性會(huì)影響脈沖的注入效果。同時(shí),同軸電纜的接地點(diǎn)和尺寸影響著脈沖的注入,接地點(diǎn)與脈沖注入點(diǎn)的距離越遠(yuǎn),耦合脈沖幅值越高。此外,外絕緣層直徑對(duì)外半導(dǎo)電層等效電阻值也有影響。
[Abstract]:In the space charge measurement system of coaxial cable based on electroacoustic pulse method (PEA), the coupling pulse directly affects the waveform of space charge measurement. Therefore, the space charge measurement system of coaxial cable based on the pulse injection method of outer semiconductive layer is briefly described. The space charge waveforms of 10 kV coaxial cable at different grounding points are measured. Through experiments and simulations, the effects of different connection locations, different cable sizes and different pulse injection region length on the pulse injection waveform are studied. The experimental and simulation results show that the waveform of the injected pulse has a direct effect on the measured space charge waveform. When the pulse is injected into the cable by the outer semi-conductive layer, the impedance characteristics of the outer semi-conductive layer will affect the injection effect of the pulse. At the same time, the location and size of the coaxial cable affect the pulse injection. The longer the distance between the connection point and the pulse injection point, the higher the coupling pulse amplitude. In addition, the equivalent resistance of the external semi-conductive layer has an effect on the diameter of the outer insulating layer.
【作者單位】： 西安交通大學(xué)電力設(shè)備電氣絕緣國(guó)家重點(diǎn)實(shí)驗(yàn)室;南方電網(wǎng)科學(xué)研究院有限責(zé)任公司;
【基金】：國(guó)家自然科學(xué)基金(51377131)~~
【分類號(hào)】：TM248.3

【相似文獻(xiàn)】

相關(guān)期刊論文 前4條

1 呂亮;雷瑯;張晉;郭磊;李彥明;;電纜繞組變壓器外半導(dǎo)電層中的電流特性[J];電工技術(shù)學(xué)報(bào);2009年05期

2 馬文忠;李耀華;孔力;;高壓電機(jī)繞組電纜特性研究[J];高電壓技術(shù);2006年03期

3 牟磊;劉家齊;王晶;李彥明;;XLPE電纜繞組芯線與外半導(dǎo)電層間的暫態(tài)耦合特性[J];高電壓技術(shù);2005年11期

4 劉家齊;牟磊;賈磊;李彥明;;外半導(dǎo)電層對(duì)地電容與XLPE電纜繞組暫態(tài)特性[J];高電壓技術(shù);2005年11期

相關(guān)會(huì)議論文 前1條

1 高超飛;仰文林;尹德強(qiáng);劉磊;;PEA法測(cè)量電纜空間的基本原理及應(yīng)用[A];山東電機(jī)工程學(xué)會(huì)2012年度學(xué)術(shù)年會(huì)論文集[C];2012年

，

本文編號(hào)：2252727