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

Article retrieval

文章檢索

首頁 >> 文章檢索 >> 往年索引

12 kV氣體絕緣環(huán)網(wǎng)柜工頻特性研究及優(yōu)化

來源:電工電氣發(fā)布時間:2023-04-26 08:26 瀏覽次數(shù):274

12 kV氣體絕緣環(huán)網(wǎng)柜工頻特性研究及優(yōu)化

王其中,李俊豪
(許繼集團有限公司,河南 許昌 461000)
 
    摘 要:為了保持環(huán)保氣體開關(guān)設(shè)備尺寸的緊湊化,通過建立 12 kV 干燥空氣絕緣環(huán)網(wǎng)柜斷路器模塊三維電場仿真模型,利用有限元仿真軟件得出其電場分布,發(fā)現(xiàn)絕緣固定板與螺栓頭及相間支撐板接觸點附近電場超標(biāo)。通過在螺栓頭部位置設(shè)計添加屏蔽罩的優(yōu)化措施,電場強度最大值由優(yōu)化前的 5.4 kV/mm 下降到 2.3 kV/mm ;通過在相間支撐板間添加絕緣隔板,可以降低隔板區(qū)域電場強度,證明所提出優(yōu)化方法的理論可行性。對優(yōu)化前后的斷路器模塊進行工頻耐壓試驗,同樣的距離,添加屏蔽罩的螺栓頭對氣箱壁耐壓提升了 10 kV,添加絕緣隔板的相間支撐板耐壓提升了 7 kV,驗證了優(yōu)化方案的工程應(yīng)用可行性。
    關(guān)鍵詞: 環(huán)保氣體;開關(guān)設(shè)備;緊湊化;環(huán)網(wǎng)柜;電場仿真;屏蔽罩
    中圖分類號:TM591     文獻標(biāo)識碼:B     文章編號:1007-3175(2023)04-0066-05
 
Research and Optimization of Power Frequency Characteristics of
12 kV Air-Insulated Ring-Main Unit
 
WANG Qi-zhong, LI Jun-hao
(XJ Group Co., Ltd, Xuchang 461000, China)
 
    Abstract: To keep the size of environmental-friendly gas switchgear compact, the paper builds a three-dimensional electric field simulation model of the circuit breaker module of 12 kV dry-air-insulated ring-main unit and uses finite element simulation software to obtain its electric field distribution. It finds out that the electric field near the contact point between insulation fixing plates, bolt heads and inter-phase support plates exceeds the standard.The adding of shielding cover to the bolt head decreases the maximum electric field intensity from 5.4 kV/mm to 2.3 kV/mm; and the adding of insulation partition to inter-phase support plates reduces their electric field intensity. The above optimization measures verify the theoretical feasibility of the proposed method.Then, the paper also carries out the industrial frequency withstand voltage test of the circuit breaker modules. The withstanding voltage against the gas box wall of bolt heads with shielding cover increases 10 kV and the withstanding voltage of inter-phase support plates with insulation partition increases 7 kV in the same distance, which verifies the feasibility of this optimization scheme.
    Key words: environmental-friendly gas; switchgear; compact; ring-main unit; electric field simulation; shielding cover
 
參考文獻
[1] 袁大陸. 全國電力系統(tǒng)高壓開關(guān)設(shè)備 10 年運行狀況述評[J]. 電力設(shè)備,2000(1):29-34.
[2] 張強華,譚燕,鄔建剛.40.5 kV 無 SF6 C-GIS 開關(guān)柜研究[J]. 高壓電器,2011,47(6): 29-33.
[3] 錢立驍,陳慎言.12~24 kV 氮氣絕緣環(huán)網(wǎng)柜的研制[J]. 高電壓技術(shù),2014,40(12): 3717-3724.
[4] 勾國營,楊嬌龍,駱常璐,等. 基于 Ansys 有限元的接地回路電動力分析與優(yōu)化[J] . 高壓電器,2017,53(8):105-109.
[5] 洪國耀,趙羲英,陳冰. 小型化 SF6 氣體絕緣金屬封閉開關(guān)設(shè)備的研究開發(fā)[J] . 高壓電器,2012,48(10):78-82.
[6] 杜彥明,顧霓鴻. 國內(nèi)配電開關(guān)設(shè)備現(xiàn)狀及事故情況[J]. 電網(wǎng)技術(shù),2002,26(2):70-76.
[7] 潘長明,劉剛,熊炬,等. 高壓開關(guān)柜絕緣事故的分析及防范措施[J] . 高壓電器, 2011,47(7):90-93.
[8] VOETEN S J, BECKERS F J C M, VAN HEESCH E J M, et al.Optical characterization of surface dielectric barrier discharge[J].IEEE Transactions Plasma Science,2011,39(11):2142-2143.
[9] 李清泉, 許光可, 房新振, 等. 沿面型介質(zhì)阻擋放電的數(shù)值仿真計算[J] . 高電壓技術(shù), 2012,38(7):1548-1555.
[10] AN Jiutao, SHANG Kefeng, LU Na, et al.Oxidation of mercury by active species generated from a surface dielectric discharge plasma reactor[J].Plasma Chemistry and Plasma Processing,2014,34(1):217-228.
[11] BIGANZOLI I, BARNI R, RICCARDI C, et al.Optical and electrical characterization of a surface dielectric barrier discharge plasma actuator[J].Plasma Sources Science & Technology,2013,22(2):1-9.
[12] 潘俊,方志. 多脈沖均勻介質(zhì)阻擋放電特性的仿真及實驗研究[J] . 高電壓技術(shù),2012,38(5):1132-1140.
[13] 中國電器工業(yè)協(xié)會. 高壓交流開關(guān)設(shè)備和控制設(shè)備標(biāo)準(zhǔn)的共用技術(shù)要求:GB/T 11022—2020[S]. 北京:中國標(biāo)準(zhǔn)出版社,2020:16.
[14] 王巧紅, 王占杰, 孫玉洲, 等. 基于 Ansys 的 1 120 kV 直流隔離開關(guān)的電場仿真[J] . 高壓電器,2017,53(6):36-41.
[15] IEEE Substations Committee Working Group K4.Partial discharge testing of gas insulated substations[J].IEEE Transactions on Power Delivery,1992,7(2):499-506.
[16] 包博,謝天喜,彭宗仁,等.750 kV 高壓電抗器籠式出線結(jié)構(gòu)均壓特性研究[J] . 電網(wǎng)技術(shù),2011,35(5): 232-236.
[17] 潘浩,殷慶鐸,高文勝. 固體絕緣中氣隙尺寸對局部放電過程的影響[J] . 高電壓技術(shù), 2008,34(3): 458-461.
[18] 林莘,劉志剛. ICCG 算法在 SF6 罐式高壓斷路器三維電場有限元計算中的應(yīng)用[J] . 中國電機工程學(xué)報,2001,21(2):21-24.
[19] 張文凱,吳小釗,鄭亞利,等. 基于靜電場分析的固封極柱局部放電研究[J]. 高電壓技術(shù), 2015,41(11):3858-3865.
[20] 楊敬華,范承勇.40.5 kV 真空斷路器絕緣結(jié)構(gòu)電場分析及優(yōu)化設(shè)計[J]. 電網(wǎng)技術(shù),2011,35(12):146-152.