±1 100 kV線路光纖復(fù)合絕緣子的電場仿真與優(yōu)化設(shè)計
黃曄礦1,王幫田1,牛萬宇1,胡文2,李黎2
1 許繼電氣股份有限公司,河南 許昌 467000;2 華中科技大學(xué) 電氣與電子工程學(xué)院,湖北 武漢 430074
摘 要:根據(jù)污耐壓法提出了±1 100 kV 直流棒形懸式復(fù)合絕緣子外絕緣設(shè)計的一種方案,并基于有限元法建立了棒形懸式復(fù)合絕緣子的仿真模型,確定了復(fù)合絕緣子均壓環(huán)的結(jié)構(gòu)參數(shù)。仿真結(jié)果表明,該均壓環(huán)設(shè)計滿足各部分電場強度均低于電暈起始電場強度的要求,有效地改善了復(fù)合絕緣子電位、電場分布,且均壓環(huán)表面不會產(chǎn)生電暈。
關(guān)鍵詞:復(fù)合絕緣子;有限元法;污耐壓法;均壓環(huán)優(yōu)化
中圖分類號:TM215.92 文獻標(biāo)識碼:A 文章編號:1007-3175(2014)02-0021-05
Electrical Field Simulation and Optimization Design for ?1 100 kV DC Optical Fiber Composite Insulator
HUANG Ye-kuang1, WANG Bang-tian1, NIU Wan-yu1, HU Wen2, LI Li2
1 XJ Electric Co., Ltd, Xuchang 467000, China;2 School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Abstract: According to the pollution withstand voltage algorithm, this paper proposed a kind of plan for ?11 00 kV DC rod suspension composite insulator external insulation design. The simulation model based on finite element method was built for rod suspension composite insulator to determine structural parameters of composite insulator grading ring. Simulation result shows that the grading ring design meets the requirements of every part electrical field strength all bellow electric halo starting electric field strength, which effectively improves composite insulator electric potential, electric field distribution, without electric halo generated in grading ring surface.
Key words: composite insulator; finite element method; pollution withstand voltage algorithm; grading ring optimization
參考文獻
[1] 薄學(xué)微,卞星明,王黎明,等.750 k V 交流復(fù)合絕緣子均壓環(huán)優(yōu)化設(shè)計[ J ] . 高壓電器,2010,46(12):5-8.
[2] 卞星明,張福增,王黎明,等.1 000 k V 交流復(fù)合絕緣子均壓環(huán)參數(shù)設(shè)計[ J ] . 高電壓技術(shù),2009,35(5):980-986.
[3] 邱志賢. 高壓絕緣子的設(shè)計與應(yīng)用[ M ] . 北京:中國電力出版社,2006.
[4] 關(guān)志成,張福增,王新,王黎明. 特高壓直流輸電線路外絕緣設(shè)計和絕緣子選型[ J ] . 高電壓技術(shù),2006,32(12):120-124.
[5] 吳光亞, 郭賢珊, 張銳. 特高壓直流輸電線路污穢外絕緣設(shè)計及配置[ J ] . 高電壓技術(shù),2008,34(5):862-866.
[6] 江汛,王仲奕.330 k V 帶均壓環(huán)的棒形懸式復(fù)合絕緣子電場有限元分析[ J ] . 高壓電器,2004,40(3):215-217.
[7] 周遠翔,胡航海,黎小林,等. 特高壓線路外絕緣設(shè)計軟件的污耐壓算法[ J ] . 高電壓技術(shù),2007,33(11):23-26.
[8] 吳光亞,蔡煒,張銳,徐濤.1 000 kV 輸電線路污穢絕緣配置的初步探討[J]. 電瓷避雷器,2005(6):1-5.
[9] Zhang Bo, Han Shejiao, He Jinliang, et al.Numerical analysis of electric-field distribution around composite insulator and head of transmission tower[J].IEEE Transactions on Power Delivery,2006,21(2):959-965.
[10] Sebestyn I.Electric-field calculation for HV insulators using domain decomposition method[J].IEEE Transactions on Magnetics,2002,38(2):1213-1216.
[11] 王穎,馬西奎,邱關(guān)源. 漸近邊界條件在軸對稱無界高壓靜電場計算中的應(yīng)用[ J ] . 高電壓技術(shù),1997,23(1):26-30.
[12] 司馬文霞,楊慶,孫才新,等. 基于有限元和神經(jīng)網(wǎng)絡(luò)方法對超高壓合成絕緣子均壓環(huán)結(jié)構(gòu)優(yōu)化的研究[J]. 中國電機工程學(xué)報,2005,25(17):115-120.
[13] 張強,王維慶,李長凱. 均壓環(huán)對改善復(fù)合絕緣子的電場分布影響[J]. 電瓷避雷器,2010(4):26-29.