高壓直流導(dǎo)線下絕緣薄膜表面電荷分布測量
發(fā)布時間:2018-07-20 19:17
【摘要】:隨著我國高壓直流輸電工程的大量建設(shè),由電暈放電引起的電磁環(huán)境問題顯得尤為重要。但是,目前對線路跨越農(nóng)用大棚時的電場問題研究還不夠。當(dāng)線路下方存在農(nóng)用大棚時,電荷會在大棚表面發(fā)生積累,并對地面的離子流場造成畸變。利用法拉第筒法對PVC塑料薄膜、遮陽網(wǎng)和布料3種介質(zhì)模型表面電荷密度進(jìn)行測量,并對比3種材料的荷電特性。通過分析,獲得PVC塑料薄膜表面電荷密度的分布特點,以及3種不同材質(zhì)絕緣薄膜荷電特性的差異。對高壓直流輸電線路附近大棚表面電場的建模和計算提供參考。
[Abstract]:With the construction of HVDC projects in China, electromagnetic environment problems caused by corona discharge are becoming more and more important. However, the current research on the electric field when the lines cross the agricultural shed is not enough. When there is an agricultural shed under the line, the charge accumulates on the surface of the shed and distorts the ion flow field on the ground. The surface charge density of PVC plastic film, shading net and cloth was measured by Faraday tube method, and the charge characteristics of the three materials were compared. The distribution characteristics of surface charge density of PVC plastic film and the difference of charge characteristics of three kinds of insulating films with different materials were obtained by analysis. It provides a reference for modeling and calculation of surface electric field near HVDC transmission lines.
【作者單位】: 新能源電力系統(tǒng)國家重點實驗室(華北電力大學(xué));
【基金】:國家自然科學(xué)基金項目(51177041)~~
【分類號】:TM721.1
[Abstract]:With the construction of HVDC projects in China, electromagnetic environment problems caused by corona discharge are becoming more and more important. However, the current research on the electric field when the lines cross the agricultural shed is not enough. When there is an agricultural shed under the line, the charge accumulates on the surface of the shed and distorts the ion flow field on the ground. The surface charge density of PVC plastic film, shading net and cloth was measured by Faraday tube method, and the charge characteristics of the three materials were compared. The distribution characteristics of surface charge density of PVC plastic film and the difference of charge characteristics of three kinds of insulating films with different materials were obtained by analysis. It provides a reference for modeling and calculation of surface electric field near HVDC transmission lines.
【作者單位】: 新能源電力系統(tǒng)國家重點實驗室(華北電力大學(xué));
【基金】:國家自然科學(xué)基金項目(51177041)~~
【分類號】:TM721.1
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 吳桂芳;我國±500kV直流輸電工程的電磁環(huán)境問題[J];電網(wǎng)技術(shù);2005年11期
2 袁清云;特高壓直流輸電技術(shù)現(xiàn)狀及在我國的應(yīng)用前景[J];電網(wǎng)技術(shù);2005年14期
3 舒印彪;劉澤洪;高理迎;王紹武;;±800kV 6400MW特高壓直流輸電工程設(shè)計[J];電網(wǎng)技術(shù);2006年01期
4 舒印彪;劉澤洪;袁駿;陳葛松;高理迎;;2005年國家電網(wǎng)公司特高壓輸電論證工作綜述[J];電網(wǎng)技術(shù);2006年05期
5 丁立健,屠幼萍,李成榕,王景春,呂金壯;真空中絕緣子表面電荷分布的測量[J];高電壓技術(shù);2003年04期
6 王新新;劉微粒;王強;朱宏林;鄒曉兵;;絕緣子表面電場及電荷的測量[J];高電壓技術(shù);2011年03期
7 汪l,
本文編號:2134502
本文鏈接:http://sikaile.net/kejilunwen/dianlilw/2134502.html
最近更新
教材專著