|本期目录/Table of Contents|

[1]陈庆国,诸葛祥丽,刘贺千,等. 采用纳米改性纸板的换流变压器出线装置电场分布[J].电机与控制学报,2016,20(01):29-34.[doi:10. 15938 /j. emc. 2016. 01. 005]
 CHEN Qing-guo,ZHUGE Xiang-li,LIU He-qian,et al. Electric field distribution of converter transformer barrier system using nano modified pressboard [J].,2016,20(01):29-34.[doi:10. 15938 /j. emc. 2016. 01. 005]
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
20
期数:
2016年01
页码:
29-34
栏目:
出版日期:
2016-01-01

文章信息/Info

Title:
 Electric field distribution of converter transformer barrier system using nano modified pressboard

作者:
 陈庆国 诸葛祥丽 刘贺千 池明赫 魏新劳
 ( 哈尔滨理工大学 工程电介质及其应用教育部重点实验室,黑龙江 哈尔滨 150080)
Author(s):
 CHEN Qing-guo ZHUGE Xiang-li LIU He-qian CHI Ming-he WEI Xin-lao
 ( MOE Key Laboratory of Engineering Dielectrics and Its Application, Harbin University of Science and Technology,Harbin 150080,China)
关键词:
换流变压器 出线装置 电场分布 纳米 SiC 非线性
Keywords:
converter transformer barrier system electric field distribution nanometer SiC nonlinearity
分类号:
TM 215. 6
DOI:
10. 15938 /j. emc. 2016. 01. 005
文献标志码:
A
摘要:
 针对换流变压器出线装置在直流及极性反转电压作用下电场分布不均的问题,探究了非线 性纳米 SiC 对绝缘纸板进行改性的方法,制备了纳米改性绝缘纸板试样,并测量了改性纸板的介电 特性; 结合换流变压器出线装置的实际结构建立了电场分布的仿真模型,分析了纸板改性对出线装 置电场分布的均化作用。试验结果表明: 纳米改性绝缘纸板的相对介电常数随纳米 SiC 掺杂浓度 的增加而增加,但增加的幅度不大,随电场强度的增加呈略微上升的趋势; 其电导率随着纳米掺杂 浓度的增加而增加,当掺杂浓度达到一定值时,电导率随场强增加表现出明显的非线性特征。仿真 结果表明: 在直流和极性反转电压下,纸板改性可降低绝缘纸板中的场强,提高变压器油中的场强, 使油纸绝缘结构中的电场分布更趋于均匀。

Abstract:
 In order to solve the problem of electric field distribution concentration in converter transformer barrier system under DC and polarity reversal voltages,the method of modification to pressboard with non-linear nano SiC was explored,and the nano SiC modified pressboard samples were manufactured,the die-lectric properties of modified pressboard was measured. The electric field distribution simulation model of converter transformer barrier system was built considering its practical structure,and the homogenization effect of pressboard modification on barrier system electric field distribution was analyzed. The experiment results show that the permittivity of modified pressboard increases with the increase of nano SiC doping ra-tio but not obviously and there is a slight rising trend with the electric field strength increasing. The con-ductivity of modified pressboard increases with the increase of nano SiC doping ratio,and it shows obvious nonlinearity between conductivity and electric field strength when the doping ratio exceeds a certain val-ue. The simulation results show that the electric field strength in pressboard can be reduced by using nano modified pressboard,and electric field strength in oil will be heightened,which can make the elec-tric field distribution in oil /pressboard insulation structure more homogeneous under DC and polarity re-versal voltages.

参考文献/References:

相似文献/References:

[1]陈庆国,林林,高源,等. 换流变压器中典型平板油纸绝缘结构的油流带电特性[J].电机与控制学报,2015,19(02):14.
 CHEN Qing-Guo,LIN Lin,GAO Yuan,et al. Flow electrification characteristics of typical plane oil-pressboardinsulation in converter transformer[J].,2015,19(01):14.
[2]刘文里,白仕光,李祎春,等.高压直流换流变压器油纸绝缘线性与非线性电场分析[J].电机与控制学报,2017,21(09):80.[doi:10.15938/j.emc.2017.09.011]
 LIU Wen-li,BAI Shi-guang,LI Yi-chun,et al.Analysis of linear and nonlinear electric field of HVDC convert transformer oil-board insulation[J].,2017,21(01):80.[doi:10.15938/j.emc.2017.09.011]
[3]陈庆国,董振鹏,林林,等. 温度对交直流叠加电场下油纸绝缘油流带电的影响[J].电机与控制学报,2018,22(05):35.[doi:10.15938/j.emc.2018.05.005]
 CHEN Qing-guo,DONG Zhen-peng,LIN Lin,et al. Influence of temperature on flow electrification characteristics ofoil-paper insulation under AC superimposed DC electric field[J].,2018,22(01):35.[doi:10.15938/j.emc.2018.05.005]

备注/Memo

备注/Memo:
 收稿日期: 2014 - 01 - 13
基金项目: 国家自然科学基金 ( 51277047 ) ; 黑龙江省自然科学基金 ( ZD201310 ) ; 教育部高等学校博士学科点专项科研基金
( 20132303110006) ; 国家自然科学基金青年基金( 51407051)
作者简介: 陈庆国( 1970—) ,男,教授,博士生导师,研究方向为高电压绝缘、电力设备绝缘检测及高电压应用新技术;
诸葛祥丽( 1990—) ,女,硕士研究生,研究方向为高电压绝缘;
刘贺千( 1989—) ,男,博士研究生,研究方向为高电压绝缘;
池明赫( 1981—) ,男,博士,研究方向为高电压绝缘;
魏新劳( 1960—) ,男,教授,博士生导师,研究方向为高电压绝缘、电力设备绝缘检测及高电压应用新技术。
更新日期/Last Update: 2016-03-21