GIS管道L型拐角、支架和盆式絕緣子的電路建模
[Abstract]:During the operation of GIS substation disconnector switch, high amplitude will be produced, and the transient electromagnetic wave in wide band. GIs pipeline will form very fast transient overvoltage (VFTO), and there will be transient shell voltage (TEV). Outside. There is a corner section in the GIS pipeline, the position of the structural change such as the basin insulator and the casing, etc. When the electromagnetic wave in the pipeline propagates to these places, the electromagnetic field will produce local distortion and the GIS pipeline bracket will connect the pipeline with the earth, which will be used to support the pipeline. With the increase of frequency, the metal scaffold will produce skin effect and proximity effect, and its impedance characteristics will change. It is of great significance for the study of VFTO and external TEV in the pipeline to establish the equivalent circuit model of the pipe bend section, the pipe support and the basin insulator at a certain frequency. In this paper, the equivalent circuit model of GIS pipe structure is established for the bend section, bracket and basin insulator. The electromagnetic field local distortion caused by the electromagnetic wave propagating to the irregular structure of the pipeline can usually be compensated in the form of lumped circuit elements to the transmission line model describing the electromagnetic wave. The equivalent circuit of 蟺 type and T type composed of inductance and capacitance is compensated, Based on the electromagnetic field simulation, the two-port network parameters of L-type pipeline are obtained, and the formulas of compensation inductance and compensation capacitance are derived by using the transmission line theory, while the static capacitance is obtained for the basin insulator based on the electromagnetic field simulation. The impedance parameters of different conductors at certain frequencies can be extracted by compensating capacitance with equivalent ANSYS Q3D Extractor software. According to the different pipe support structures, an approximate method for calculating the broadband impedance of GIS pipeline support is established. The effectiveness of the method is verified.
【學(xué)位授予單位】:華北電力大學(xué)(北京)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TM595
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 蔣謙;;1000kV GIS接地引下線采用封閉式不銹鋼盒的應(yīng)用探討[J];科技傳播;2014年21期
2 胡榕;崔翔;陳維江;張衛(wèi)東;李志兵;戴敏;;特高壓氣體絕緣開關(guān)設(shè)備瞬態(tài)外殼電壓特性的試驗(yàn)研究[J];中國(guó)電機(jī)工程學(xué)報(bào);2014年29期
3 杜巍;李永剛;劉教民;孫yN;王震洲;;基于時(shí)域有限元的VFTO全過程仿真新方法[J];中國(guó)電機(jī)工程學(xué)報(bào);2014年18期
4 魏振;張強(qiáng);齊波;李成榕;張曉涵;;高壓開關(guān)柜典型缺陷局部放電TEV特征的研究[J];高壓電器;2014年02期
5 李興旺;盧啟付;呂鴻;高文勝;鄭書生;許鶴林;王流火;王增彬;;雷電沖擊耐壓過程中GIS局部放電特高頻檢測(cè)有效性研究[J];高壓電器;2013年10期
6 詹花茂;趙承楠;段韶峰;李成榕;李志兵;歐陽卓;;氣體絕緣開關(guān)設(shè)備的隔離開關(guān)分合空載短母線時(shí)特快速暫態(tài)過電壓及特快速暫態(tài)電流測(cè)量[J];高電壓技術(shù);2013年06期
7 李敬如;宋璇坤;張祥龍;肖智宏;黃寶瑩;邱斌;黃冰;;智能變電站一、二次設(shè)備集成技術(shù)[J];電力建設(shè);2013年06期
8 許云鳳;郭江波;胡恒進(jìn);;GIS管線支架結(jié)構(gòu)強(qiáng)度分析[J];科技信息;2013年14期
9 張衛(wèi)東;陳沛龍;陳維江;崔翔;王磊;黃輝敏;胡榕;武超飛;;特高壓GIS變電站VFTO對(duì)二次電纜騷擾電壓的實(shí)測(cè)與仿真[J];中國(guó)電機(jī)工程學(xué)報(bào);2013年16期
10 盧斌先;孟準(zhǔn);;基于GIS制造特征的電磁波仿真模型簡(jiǎn)化的研究[J];電工技術(shù)學(xué)報(bào);2013年01期
相關(guān)碩士學(xué)位論文 前8條
1 謝順添;GIS超高頻局部放電在線監(jiān)測(cè)系統(tǒng)研究及應(yīng)用[D];華南理工大學(xué);2015年
2 劉德東;GIS中特快速暫態(tài)過電壓研究[D];華東交通大學(xué);2015年
3 石雨鑫;基于GIS開關(guān)瞬態(tài)場(chǎng)的集總等效電磁干擾源測(cè)量方法研究[D];華北電力大學(xué);2015年
4 王昊天;變電站內(nèi)智能組件電磁干擾耦合模型的研究[D];華北電力大學(xué);2015年
5 郭韶杰;變電站智能組件的電磁兼容性能評(píng)估及防護(hù)措施研究[D];華北電力大學(xué);2015年
6 劉山;基于超聲波、特高頻方法的GIS局部放電檢測(cè)技術(shù)研究[D];華北電力大學(xué);2015年
7 隋東硼;計(jì)及沖擊電暈的500kV變電站雷電過電壓計(jì)算及防雷措施研究[D];沈陽工業(yè)大學(xué);2013年
8 呂健雙;500kVGIS變電站雷電過電壓研究[D];華中科技大學(xué);2012年
,本文編號(hào):2153202
本文鏈接:http://sikaile.net/kejilunwen/dianlidianqilunwen/2153202.html