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

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220 kV同塔雙回線路感應(yīng)電壓電流影響因素敏感性分析

來源:電工電氣發(fā)布時(shí)間:2019-11-19 13:19 瀏覽次數(shù):628
220 kV同塔雙回線路感應(yīng)電壓電流影響因素敏感性分析
 
吳倩1,2,薄鑫1,2,吳楊勇3,王庭華1,2,李辰1
(1 國網(wǎng)江蘇省電力有限公司經(jīng)濟(jì)技術(shù)研究院,江蘇 南京 210008;
2 國網(wǎng)江蘇電力設(shè)計(jì)咨詢有限公司,江蘇 南京 210008;
3 國網(wǎng)安徽省電力有限公司祁門縣供電公司,安徽 黃山 245600)
 
    摘 要:由于電磁感應(yīng)和靜電耦合作用,同塔雙回正常運(yùn)行線路會(huì)在檢修線路上產(chǎn)生感應(yīng)電壓、電流?;贓MTP/EMTPE電磁暫態(tài)仿真平臺(tái),對桿塔線路布置方式、線路長度、運(yùn)行線路傳輸功率和工作電壓等,開展同塔雙回線路感應(yīng)電壓、電流的主要影響因素敏感性分析,提煉關(guān)鍵敏感因素及敏感程度。通過挖掘220 kV同塔雙回線路感應(yīng)電壓、電流的基本規(guī)律,對220 kV出線接地開關(guān)選型提出指導(dǎo)性建議,提高選型效率與準(zhǔn)確性,為220 kV輸電線路的檢修提供技術(shù)參考。
    關(guān)鍵詞:同塔雙回;感應(yīng)電壓;感應(yīng)電流;接地開關(guān);敏感性分析
    中圖分類號(hào):TM755     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):1007-3175(2019)11-0011-06
 
Sensitivity Analysis on Influence Factors of Induced Voltage and Current of 220 kV
Double-Circuit Transmission Lines on the Same Tower
 
WU Qian1,2, BO Xin1,2, WU Yang-yong3, WANG Ting-hua1,2, LI Chen1
(1 Economic Research Institute of State Grid Jiangsu Electric Power Co., Ltd, Nanjing 210008, China;
2 State Grid Jiangsu Electric Power Design Consulting Institute Co., Ltd, Nanjing 210008, China;
3 Qimen County Electric Power Supply Company of State Grid Anhui Electric Power Co., Ltd, Huangshan 245600, China)
 
    Abstract: Due to the electromagnetic induction and electrostatic coupling effect, when outage occurs in one of the 220 kV double circuits on the same tower, induced current and voltage will be generated in another circuit. Based on EMTP/EMTPE electromagnetic transient simulation platform, this paper carried out sensitivity analysis for those main factors of double circuits on the same tower, including arrangement form of circuits on the tower, length of double circuits on the same tower, transmission power and voltage of the running line, which impacted on the induced current and voltage, and the key sensitive factors and sensitivity degree were extracted. By excavating the basic law of induced voltage and current of 220 kV double-circuit transmission lines on the same tower, this paper puts forward the valuable proposal guiding the selection of 220 kV line earthing switches to improve the efficiency and accuracy of selection of earthing switches, which provides technical reference for 220 kV transmission line maintenance.
    Key words: double circuits on the same tower; induced voltage; induced current; earthing switch; sensitivity analysis
 
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