|本期目录/Table of Contents|

[1]张露,潘卓洪,雷鸣,等.水电站主变的直流偏磁的评估与抑制[J].电机与控制学报,2010,(07):29-35.
 ZHANG Lu,PAN Zhuo-hong,LEI Ming,et al.Evaluation and mitigation for DC bias in Hydropower plant[J].,2010,(07):29-35.
点击复制

水电站主变的直流偏磁的评估与抑制(PDF)
分享到:

《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
期数:
2010年07
页码:
29-35
栏目:
出版日期:
2010-08-07

文章信息/Info

Title:
Evaluation and mitigation for DC bias in Hydropower plant
作者:
张露; 潘卓洪; 雷鸣; 谭波; 张曾; 文习山;
武汉大学电气工程学院; 洛阳市供电公司;
Author(s):
ZHANG Lu1; PAN Zhuo-hong1; LEI Ming2; TAN Bo1; ZHANG Zeng1; WEN Xi-Shan1
1.School of electrical engineering; Wuhan University; Wuhan 430072; China; 2.Luoyang power supply company; Luoyang 471009; China
关键词:
直流输电 变压器 直流偏磁 电流注入法
Keywords:
HVDC transmission transformer DC bias current injection method
分类号:
TV734
DOI:
-
文献标志码:
A
摘要:
对水电站变压器直流偏磁的问题建立了评估模型并开发出软件计算,通过实测与仿真的对比说明模型有效性,并以锦屏二级水电站为例对水电站的建设和运行提出了建议。另外,结合水电站的实际情况分析了不同抑制措施的特点,重点分析了电流注入法的原理和仿真模型,通过监测数据验证了电流注入法模型的有效性,并定量分析了土壤电阻率和补偿距离对中性点注入电流时补偿度的影响。仿真计算和实际应用情况表明:电流注入实质上起补偿变电站间母线电位差的作用,土壤电阻率增大或者补偿距离减少会导致注入电流大小增加,补偿度会降低,在一般情况下补偿度小于0.6。电流注入法不改变中性点状态,节约电站空间,可以安全有效地抑制大型水电站内所有变压器的直流偏磁。
Abstract:
The evaluation model for transformers’ DC bias in hydropower plant under HVDC ground return operating model was presented.The developed software based on this model was established.Comparision between mesured value and calculated result proved the effectiveness of the model.Current injection meth-od was analyzed and was stressed on the ways of surpress DC bias.Take JingPing hydropower plant for ex-ample,suggestion on construction and operation of the hydropower plant were presented.With the practical condit...

参考文献/References:

-

相似文献/References:

[1]张志文,黄际元,罗隆福,等. 高速电气化铁路负序和谐波统一治理新方法[J].电机与控制学报,2013,(08):22.
 ZHANG Zhi-wen,HUANG Ji-yuan,LUO Long-fu,et al.[J].,2013,(07):22.
[2]王强,王天施,侯利民,等. 变压器辅助换流的谐振直流环节软开关逆变器[J].电机与控制学报,2013,(07):61.
 WANG Qiang,WANG Tian-shi,HOU Li-min,et al.[J].,2013,(07):61.
[3]蔡金锭,王凯. 油纸绝缘变压器非标准极化谱的仿真研究[J].电机与控制学报,2014,18(09):49.
 CAI Jin-ding,WANG Kai.Research on non-standard polarization spectrum ofoil-paper insulation transformers[J].,2014,18(07):49.
[4]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(07):14.
[5]林智勇,蔡金锭.运用混联等效电路诊断变压器油纸绝缘状态[J].电机与控制学报,2016,20(03):1.[doi:10. 15938 / j. emc. 2016. 03. 001]
 LIN Zhi-yong,CAI Jin-ding.Diagnosing transformer oil-paper insulation by hybrid equivalent circuit[J].,2016,20(07):1.[doi:10. 15938 / j. emc. 2016. 03. 001]
[6]年珩,吴超.双馈电机直流并网系统无位置传感器运行策略[J].电机与控制学报,2016,20(11):1.[doi:10. 15938 / j. emc. 2016. 11. 001]
 NIAN Heng,WU Chao.Sensorless control strategy of doubly-fed induction generator connected to DC grid [J].,2016,20(07):1.[doi:10. 15938 / j. emc. 2016. 11. 001]
[7]王强,唐朝垠,王天施,等.用于无刷直流电机驱动的谐振极软开关逆变器[J].电机与控制学报,2017,21(06):59.[doi:10. 15938 /j. emc. 2017. 06. 008]
 WANG Qiang,TANG Chao-yin,WANG Tian-shi,et al. A resonant pole soft-switching inverter for brushless DC motor drives[J].,2017,21(07):59.[doi:10. 15938 /j. emc. 2017. 06. 008]
[8]郑文迪,蔡金锭,曾静岚. 考虑线型因子的变压器油纸绝缘系统微水含量评估[J].电机与控制学报,2017,21(08):33.[doi:10.15938 /j.emc.2017.08.005]
 ZHENG Wen-di,CAI Jin-ding,ZENG Jing-lan.Evaluation on micro water condition of transformer insulation considering line shape factor [J].,2017,21(07):33.[doi:10.15938 /j.emc.2017.08.005]

备注/Memo

备注/Memo:
国家重点基础研究发展计划(973)(2009CB724500)
更新日期/Last Update: 2010-10-20