Suzhou Electric Appliance Research Institute
期刊號: CN32-1800/TM| ISSN1007-3175

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基于CDEGS軟件的變電站接地主網(wǎng)網(wǎng)孔加密法研究

來源:電工電氣發(fā)布時間:2018-08-16 10:16 瀏覽次數(shù):639
基于CDEGS軟件的變電站接地主網(wǎng)網(wǎng)孔加密法研究
 
耿夢儒1,葛強2,王品2,王成2,王娜2
(1 中電新源智能電網(wǎng)科技有限公司,江蘇 南京 211113;2 揚州大學 水利與能源動力工程學院,江蘇 揚州 225127)
 
    摘 要:變電站接地網(wǎng)的建設因受多種因素影響,是電力建設中的難題。基于CDEGS軟件分析了接地網(wǎng)面積、水平接地極總長度等因素對接地網(wǎng)參數(shù)的影響,對當前主流的等間距及不等間距布置方案的優(yōu)缺點進行了對比,結合工程實際因素與規(guī)程規(guī)范要求,提出網(wǎng)孔加密方法,并對其進行了仿真分析及工程實例應用。結果表明:網(wǎng)孔加密法取得了良好的效果,在工程運用中達到了改善接地主網(wǎng)參數(shù)性能的目標。
    關鍵詞:接地主網(wǎng);網(wǎng)孔加密法;CDEGS軟件;接地電阻;接觸電壓;跨步電壓
    中圖分類號:TM862     文獻標識碼:A     文章編號:1007-3175(2018)08-0040-06
 
Research on Mesh Density Method of Main Substation Grounding Grid Based on CDEGS Software
 
GENG Meng-ru1, GE Qiang2, WANG Pin2, WANG Cheng2, WANG Na2
(1 China Power New Energy Smart Grid Technology Co., Ltd., Nanjing 211113 , China;
2 School of Hydraulic Energy and Power Engineering, Yangzhou University, Yangzhou 225127, China)
 
Abstract: The construction of transformer substation grounding grid is a problem in the power construction because of the multifactor influences on the construction. Based on CDEGS software, this paper analyzed the grounding grid area and level grounding electrode total length etc factors’ impact on grounding grid parameters and carried out the comparison for the relative merits between equal and unequal divisions layout plan of current mainstream. Combined the engineering practice factors with the regulation code requirements, this paper proposed the mesh density method and carried out simulated analysis with the engineering project applied. The results show that the mesh density method obtains good results, which realizes the object of parameter performance of main grounding grid in engineering application.
Key words: main grounding grid; mesh density method; CDEGS software; grounding resistance; touch voltages; step voltage
 
參考文獻
[1] 張波,何金良,曾嶸. 電力系統(tǒng)接地技術現(xiàn)狀及展望[J]. 高電壓技術,2015,41(8):2569-2582.
[2] 雷將鋒,彭敏放,沈美娥,楊滔. 基于云遺傳算法的接地網(wǎng)優(yōu)化設計[J]. 電力自動化設備,2012,32(7):119-123.
[3] 薛永端,郭麗偉,張林利,徐丙垠,李天友. 有源配電網(wǎng)中性點接地方式的選擇問題[J]. 電力系統(tǒng)自動化,2015,39(13):129-136.
[4] 王成,葛強,徐燕,耿夢儒,謬利蓉. 接地網(wǎng)不等電位數(shù)值計算方法[J]. 電工電氣,2017(1):22-25.
[5] 李慧奇,王璐,陳明,邢琳,張大雨. 非均勻土壤矩形接地網(wǎng)優(yōu)化設計[J]. 電測與儀表,2017,54(2):109-113.
[6] 高延慶,何金良,曾嶸,梁曦東. 非均勻土壤中變電站接地網(wǎng)優(yōu)化設計[J]. 清華大學學報( 自然科學版),2002,42(3):345-348.
[7] 左鵬,魏沖,鄒軍,袁建生. 不等間距布置導體的接地網(wǎng)優(yōu)化設計[J]. 高電壓技術,2011,37(9):2315-2320.
[8] 中國電力企業(yè)聯(lián)合會. 交流電氣裝置的接地設計規(guī)范:GB/T 50065—2011[S]. 北京:中國計劃出版社,2011:47-50.
[9] 鄭暉. 發(fā)電廠、變電站接地系統(tǒng)優(yōu)化研究[D]. 長沙:長沙理工大學,2013.