全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
高压电器  2015 

变压器油纸绝缘老化状态的探讨

, PP. 132-138

Keywords: 变压器,油纸绝缘,回复电压,扩展德拜模型,极化支路数,时间常数

Full-Text   Cite this paper   Add to My Lib

Abstract:

基于介质响应理论的回复电压法能够有效并无损地诊断变压器的绝缘状态。而变压器油纸绝缘极化等效电路模型特别是其中的参数计算在诊断研究过程中起到了关键作用。目前普遍采用的扩展德拜模型存在着极化支路数无法确定的问题,笔者针对此问题对极化支路数进行了探讨,对搭建的已知扩展德拜模型进行不同极化支路数求解,并根据绝缘状态越差极化支路数越多,假设绝缘状态差的变压器极化支路数为7条,绝缘状态良好的变压器极化支路数为5条。通过上述求解,探讨了极化支路数之间的关系,提出了支路试探法。并结合支路试探法,在参数求解的基础上提出利用极化支路时间常数这一特征量来评估变压器老化状况。

References

[1]  彭华东,董 明,刘 媛,等. 回复电压法用于变压器油纸绝缘老化状态评估[J]. 电网与清洁能源,2012,28(9):6-12. PENG Huadong,DONG Ming,LIU Yuan,et al. Transformer oil-paper insulation ageing condition assessment using return voltage measurements[J]. Power System and Clean Energy,2012,28(9):6-12.
[2]  袁 静,王 颖. 变压器绝缘老化的诊断方法[J]. 吉林水电,2009(7):60. YUAN Jing,WANG Ying. The diagnosis for the transformer insulation aging[J]. Jilin Water Resources,2009(7):60.
[3]  刘 刚. 变压器油-纸绝缘状态诊断的回复电压法研究[D]. 重庆:重庆大学,2008. LIU Gang. Study on return voltage measurement for diagnosing oil-paper insulation in transformer[D]. Chongqing:Chongqing University,2008.
[4]  廖瑞金,孙会刚,袁 泉,等. 采用回复电压法分析油纸绝缘老化特征量[J]. 高电压技术,2011,37(1):136-142. LIAO Ruijin,SUN Huigang,YUAN Quan,et al. Analysis of oil-paper insulation aging characteristics using recovery voltage method[J]. High Voltage Engineering,2011,37(1):136-142.
[5]  廖瑞金,袁 泉,唐 超,等. 不同老化因素对油纸绝缘介质频域谱特性的影响[J]. 高电压技术,2010,36(7):1612-1618. LIAO Ruijin,YUAN Quan,TANG Chao,et al. Infuence of different aging conditions on characteristics of frequency domain spectroscopy of oil-paper insulation medium[J]. High Voltage Engineering,2010,36(7):1612-1618.
[6]  姚森敬,田 杰,汤明杰,等. 基于频域介电谱法的变压器油纸绝缘套管受潮状况分析[J]. 南方电网技术,2014,8(4):52-56. YAO Senjing,TIAN Jie,TANG Mingjie,et al. Study on moisture assessment of oil paper insulated bushings based on frequency domain spectrum[J]. Southern Power System Technology,2014,8(4);52-56.
[7]  李成榕,齐 波. 油纸绝缘结构的空间电场测量技术及应用评述[J]. 南方电网技术,2013,7(2):1-9. LI Chengrong,QI Bo. Review on the measurement techniques for space electric field in oil-paper insulation and their application[J]. Southern Power System Technology,2013,7(2):1-9.
[8]  孙才新,陈伟根,李 俭,等.电气设备油中气体在线监测与故障诊断技术[M]. 北京:科学出版社,2003.
[9]  李功新,江修波,蔡金锭,等. 采用微分去极化电流法解析变压器油纸绝缘的介质响应函数[J]. 高电压技术,2012,38(8):1930-1936. LI Gongxin,JIANG Xiubo,CAI Jinding,et al. Dielectric response function for transformer oil-paper insulation solved by the method of differential depolarization current[J]. High Voltage Engineering,2012,38(8):1930-1936.
[10]  徐青鹤. 改进粒子群算法及其应用研究[D]. 杭州:杭州电子科技大学,2009. XU Qinghe. Improved particle swarm optimization and its application[D]. Hangzhou:Hangzhou University of Electronic Science and Technology,2009.
[11]  江修波,张 涛,黄彦婕. 变压器油纸绝缘极化谱的仿真研究[J].电力自动化设备,2011, 31(2):31-35. JIANG Xiubo,ZHANG Tao,HUANG Yanjie. Simulation of transformer insulation polarization spectrum[J]. Electric Power Automation Equipment,2011,31(2):31-35.
[12]  刘 刚,廖瑞金,冯 运,等. 温度对变压器油纸绝缘系统回复电压参数影响规律的研究[J]. 高压电器,2010,46(1):80-84. LIU Gang,LIAO Ruijin,FENG Yun,et al. Temperature influence on parameters of return voltage measurement of oil-paper insulation system in transformer[J]. High Voltage Apparatus,2010,46(1):80-84.
[13]  朱晓伟,梁榕珊. 温度对油纸绝缘结构的击穿特性影响的研究[J]. 电力电容器与无功补偿,2014,34(1):64-68. ZHU Xiaowei,LIANG Rongshan. Study on influence of temperature on breakdown characteristic of oil-paper insulation[J]. Power Capacitor & Reactive Power Compensation,2014,34(1):64-68.
[14]  熊维兵. 基于粒子群-鱼群结合算法的油纸绝缘等效电路参数辨识及应用[D]. 福州:福州大学,2012. XIONG Weibing. Oil-paper insulation equivalent circuit parameter identification and application based on particle swarm-fish swarm combination algorithm[D]. Fuzhou:Fuzhou University,2012.
[15]  JOTA P R S,ISLAM S M,JOTA F F. Modeling the polarization spetrum in composite oil/paper insulation systems[J]. IEEE Transactions on Dielectrics and Electrical Insulation,1999,6(2):145-151.
[16]  张 涛,冉华军. 变压器油纸绝缘介质响应等值的电路模型建模研究[J]. 华中电力,2012, 25(1):78-82. ZHANG Tao,RAN Huajun. Research on modelling for dielectric response circuit of oil-paper insulation transformers[J]. Central China Electric Power,2012,25(1):78-82.
[17]  张 涛. 基于回复电压特征量的变压器油纸绝缘状态诊断研究[D]. 福州:福州大学,2010. ZHANG Tao. Research on diagnosis of oil-paper insulation condition in transformer based on return voltage characteristic quantities[D]. Fuzhou: Fuzhou University,2010.
[18]  江修波,黄彦婕,张 涛. 变压器油纸绝缘水分的回复电压分析法[J]. 高电压技术,2010, 36(12):2984-2989. JIANG Xiubo,HUANG Yanjie,ZHANG Tao. Return voltage method of moisture of oil-paper insulation in power transformer[J]. High Voltage Engineering,2010,36(12):2984-2989.
[19]  张 涛,蔡金锭. 油纸绝缘变压器介质响应电路参数辨识的研究[J]. 电工电能新技术,2010,29(4):35-39. ZHANG Tao,CAI Jinding. Research on parameters identification for dielectric response equivalent circuit of transformers with oil-paper insulation[J]. Advanced Technology of Electrical Engineering and Energy,2010 29(4):35-39.
[20]  CH R,PATTANADECH N,PRAISUWANNA P. Equivalent circuit approximation of transformer insulation by using PDC measurement[N]. Krabi: Proceedings of ECTI-CON,2008:925-928.
[21]  SHAYEGANI A A,HASSAN O, BORSI H. PDC measurement evaluation on oil-pressboard samples[R]. France:International Conference on Solid Dielerrrics,2004:5-9.
[22]  刘文山,何 冰,郑晓光. 变压器油中糠醛含量与固体绝缘老化关系的研究[J]. 广东电力,2006,19(3):14-17. LIU Wenshan,HE Bing,ZHENG Xiaoguang. Study about relation between furfural content in transformer oil and solid-insulation aging[J]. Guangdong Electric Power,2006,19(3):14-17.
[23]  杨启平,薛五德,蓝之达. 变压器绝缘老化的诊断与寿命评估[J]. 变压器,2004,41(2):13-17. YANG Qiping,XUE Wude,LAN Zhida. Aging diagnosis and expected life assessment for transformer insulation[J]. Transformer,2004,41(2):13-17.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133