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

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基于偏度和峰度指標(biāo)的GIS壓力異常改進(jìn)判據(jù)研究

來源:電工電氣發(fā)布時間:2016-06-27 10:27 瀏覽次數(shù):12
基于偏度和峰度指標(biāo)的GIS壓力異常改進(jìn)判據(jù)研究
 
張琦1,周博2,王曉娟1
(1 三峽大學(xué) 電氣與新能源學(xué)院,湖北 宜昌 443002;
2 國網(wǎng)湖北省電力公司隨州供電公司,湖北 隨州 441300)
 
    摘 要:針對GIS 設(shè)備傳統(tǒng)年泄漏率計(jì)算判據(jù)的缺陷,提出了一種采用偏度和峰度計(jì)算判據(jù)的改進(jìn)計(jì)算方法。該方法通過分析氣室壓力曲線趨勢,以正態(tài)分布曲線為標(biāo)準(zhǔn),判斷氣室壓力曲線分布類型,確定氣室壓力是否異常;若出現(xiàn)氣室壓力異常,則再通過計(jì)算曲線的增量指標(biāo),判斷其異常類型,最終給出綜合判斷,對GIS 設(shè)備運(yùn)行情況中氣室壓力狀況進(jìn)行評估。
    關(guān)鍵詞:GIS;年泄漏率;計(jì)算判據(jù);偏度;峰度
    中圖分類號:TM591       文獻(xiàn)標(biāo)識碼:A       文章編號:1007-3175(2016)06-0020-04
 
Improved Criterion for Abnormal Pressure in Gas Insulated
Switchgear Based on Skewness and Kurtosis Index
 
ZHANG Qi1, ZHOU Bo2, WANG Xiao-juan1
(1 College of Electrical Engineering & New Energy, China Three Gorges University, Yichang 443002, China;
2 State Grid Hubei Electric Power Company Suizhou Electric Power Supply Company, Suizhou 441300, China)
 
    Abstract: Aiming at the shortcomings of traditional calculation criterion of annual leakage rate in gas insulated switchgear (GIS) equipment, this paper put forward an improved calculation method of skewness and kurtosis calculation criterion. This method analyzed the curve tendency of air chamber pressure and took the normal distribution curve as a standard, judging the curve distribution pattern of air chamber pressure to determine whether the air chamber pressure was normal. If the air chamber pressure was abnormal, the increment index needed calculating again to judge its abnormal types and gave the synthetic judgment ultimately to carry out evaluation for air chamber pressure status in GIS equipment.
    Key words: gas insulated switchgear; annual leakage rate; calculation criterion; skewness; kurtosis
 
參考文獻(xiàn)
[1] 孫軍彥. 一起GIS 設(shè)備放電事故的分析及處理[J]. 廣西電力,2008,31(2):32-33.
[2] 李英奇. 渭南變電站330 kV GIS歷次事故簡況及對策探討[J]. 西安電力高等??茖W(xué)校學(xué)報(bào),2008,3(1):53-55.
[3] 梁之林,朱大銘,張英杰,等. 兩起GIS 組合電器事故原因分析及建議[J]. 電力設(shè)備,2007,8(7):63-65.
[4] 上海市電力公司. 變電運(yùn)行操作技能必讀[M]. 北京:中國電力出版社,2001.
[5] 曹建忠. 倒閘操作安全技術(shù)[M]. 北京:中國電力出版社,2007.
[6] 張建華,陶瑞基,袁文雄.110 kV GIS 設(shè)備SF6氣室壓力異常升高的處理[J]. 高壓電器,2012,48(2):107-109.
[7] 羅學(xué)琛.SF6氣體絕緣全封閉組合電器(GIS)[M]. 北京:中國電力出版社,1999.
[8] 路自強(qiáng),胡海艦. 高海拔對SF6密度繼電器及電器設(shè)備中SF6充氣壓力值影響的研究[J]. 高壓電器,2009,45(4):37-40.
[9] 季嚴(yán)松,王承玉,楊韌,等.SF6氣體分解產(chǎn)物檢測技術(shù)及其在GIS設(shè)備故障診斷中的應(yīng)用[J] . 高壓電器,2011,47(2):100-103.
[10] 王宇,李麗,姚唯建,等. 模擬電氣設(shè)備過熱故障時SF6氣體分解產(chǎn)物的體積分?jǐn)?shù)及其特征[J]. 高壓電器,2011,47(1):62-69.
[11] 龍錦壯, 王克濤, 趙鑫, 等. 一種工程實(shí)用的GIS定量檢漏方法[J]. 電網(wǎng)與清潔能源,2013,29(6):67-70.
[12] 張艷妍,蒙海軍,姚翔. GIS設(shè)備包扎檢漏的新方法及在工程中的應(yīng)用[J]. 電力建設(shè),2007,28(11):48-51.
[13] 蔡忠建. 對描述性統(tǒng)計(jì)量的偏度和峰度應(yīng)用的研究[J]. 北京體育大學(xué)學(xué)報(bào),2009,32(3):75-76.