基于数值仿真的小型化开关柜绝缘件优化设计与布置Optimal Design and Layout of Insulators in Compact Switchgear Cabinet Based on Numerical Simulation
赵琳,王劭鹤,叶丽雅,陶瑞祥,杨勇,金涌涛,王亮
ZHAO Lin,WANG Shaohe,YE Liya,TAO Ruixiang,YANG Yong,JIN Yongtao,WANG Liang
摘要(Abstract)：
针对小型化开关柜中存在的绝缘件结构设计和布置不合理、绝缘效果不理想的情况。首先,针对电场较为集中的触头盒以及母线室穿墙套管区域,利用数值分析方法研究了带屏蔽设计对于电场分布的影响;其次,建立了电缆室触头盒出线部分、 CT相间设置绝缘隔板以及母线室母排搭接处的三维电场有限元分析模型,获得了凝露缺陷对于触头盒出线区域以及CT相间绝缘隔板、屏蔽罩盒对于母排搭接处等局部电场分布的影响。通过量化分析,总结了小型化开关柜绝缘件优化设计与布置的方法,对改善开关柜电缆室、母线室内部电场分布,提高绝缘水平具有参考价值。
The structure design and layout of the insulator in compact switchgear cabinet is unreasonable and the insulation effect is unsatisfactory. Firstly, the influence of shielded design on electric field distribution is studied by numerical analysis method for the contact box with concentrated electric field and the wall bushing area in busbar room; secondly, a three-dimensional electric field finite element analysis model for the outlet part of contact box in cable room, the insulation partition of CT phase and the busbar lap joint in busbar room is established. Then, the effect of condensation defect on local electric field distribution of the outlet part of contact box and the insulation partition of CT phase is analyzed. The effect of shield case on local electric field distribution of busbar lap joint is obtained. Finally, the method of optimal design and layout of insulation in compact switchgear is summarized through quantitative analysis. It has reference value for improving the electric field distribution of cable room and busbar room of switchgear and improving the insulation level.
关键词(KeyWords)：
开关柜;屏蔽设计;电场仿真;有限元法;凝露
switchgear;shield design;electric field simulation;finite element method;condensation
基金项目(Foundation):
作者(Author):
赵琳,王劭鹤,叶丽雅,陶瑞祥,杨勇,金涌涛,王亮
ZHAO Lin,WANG Shaohe,YE Liya,TAO Ruixiang,YANG Yong,JIN Yongtao,WANG Liang
DOI: 10.19585/j.zjdl.201903005
参考文献(References)：
- [1]彭小,黄少平.国内外高压开关柜技术的发展[J].大众用电,2003(4):16-17.
- [2]钱家骊,袁大陆,杨丽华,等.高压开关柜---结构计算运行发展[M].北京:中国电力出版社,2007.
- [3]3.6 kV~40.5 kV交流金属封闭开关设备和控制设备:GB 3906-2006[S].北京:中国标准出版社,2006.
- [4]KANE C,BLOKHINTSEV I,GOLUBEV A.Measurement and analysis of partial discharge in switchgear[C]//Proceed ings of the Electrical Insulation Conference and Electrical Manufacturing Conference.[S.l.]:IEEE,2005:203-210.
- [5]叶成刚.35 kV在役开关柜绝缘结构改进研究[D].上海:上海交通大学,2012.
- [6]黎刚,毛文奇,黎治宇.KYN61-40.5型高压开关柜存在问题与对策[J].湖南电力,2012,32(4):36-39.
- [7]王琪,李秋香,王晓健,等.开关柜放电原因分析与治理[J].山东电力技术,2014,41(3):40-43.
- [8]何肖军,徐志斌.高压开关柜绝缘性能检测与故障诊断技术研究[J].浙江电力,2010,29(5):6-10.
- [9]郑庆伟.高压开关柜绝缘故障原因分析[M].北京:电气设备装备出版社,2010.
- [10]徐国浩.高压开关柜绝缘事故的分析及防范对策[J].中国科技信息,2006(14):94-95.
- [11]潘益伟,陈建胜,林坚,等.一起40.5 kV开关柜放电的原因分析及处理[J].浙江电力,2014,33(3):35-37.
- [12]高杨,周岩,刘婷婷,等.高压开关柜的三维电磁场数值仿真[J].信息与电子工程,2009,7(6):540-544.
- [13]王佳颖,方春恩,戴玉松,等.35 kV触头盒电场计算及优化设计[J].高电压技术,2007,33(2):63-65.
- [14]宁慧英.高压开关柜三维电场的计算与分析[D].沈阳:沈阳工业大学,2007.
- [15]邓鹤鸣.雾霾对冲击放电路径影响特性的分析[J].高电压技术,2009(11):2669-2673.
- [16]严璋,朱德恒.高电压绝缘技术[M].北京:中国电力出版社,2001.
- [17]吴广宁.高电压技术[M].北京:机械工业出版社,2007.
- [18]户内交流高压开关柜和部件凝露及污秽试验技术条件:DL/T 539-1993[S].北京:中国电力出版社,1993.
- [19]吴湘黔,曾伟,李巍,等.高山高湿地区开关柜绝缘性能评估及故障隐患分析治理[J].电力大数据,2018,21(4):30-36.
- [20]姚宁,李凯,樊昱皓.35 kV开关柜局放带电检测数据异常分析[J].山西电力,2017(5):43-45.
- [21]霍天,吴振升,桂俊峰.高压开关柜局部放电声-电联合定位方法研究[J].电力工程技术,2017,36(3):62-66.
- [22]朱正国,何斌斌,胡冉,等.基于卷积神经网络的开关柜局部放电监测[J].电网与清洁能源,2017,33(3):17-22.