油纸绝缘频域介电谱的修正Cole-Cole模型特征参量提取及水分含量评估方法

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (472 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to apply the technology of frequency-domain dielectric spectroscopy (FDS) to quantitatively assess moisture contents of oil-paper insulation for transformer, the oil paper insulation samples with different moisture contents were prepared under laboratory conditions. After analyzing the influence of moisture content on frequency-domain dielectric property of oil-paper insulation samples, this paper introduced the modified Cole-Cole model to extract the frequency-domain dielectric parameters. The effects of moisture content on frequency-domain dielectric characteristic parameters are studied, and the new quantitative relationships between the moisture content and the characteristic parameters were proposed. The results show that the moisture contents heavily affect the frequency-domain dielectric property of oil-paper insulation samples. Among the characteristic parameters extracted from modified Cole-Cole model, α relaxing time constant τ_α decreases and conductivity σ_dc increases respectively with the moisture contents m.c. increasing. The fitting results primarily show that the relationship between τ_α and m.c. is exponential, and the relationship between σ_dc and m.c. is linear. Thus τ_α and σ_dc can be taken as two characteristics for moisture content estimation.

Key words： Frequency-domain dielectric spectroscopy oil-paper insulation moisture content modified Cole-Cole model characteristics extraction

Received: 25 August 2014 Published: 11 July 2016

PACS:

TM855

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Yang Lijun
	Gao Sihang
	Gao Jun
	Liu Jiefeng
	Yao Renyun
	Liu Zhizhong

Cite this article:

Yang Lijun,Gao Sihang,Gao Jun等. Characteristic Parameters Extracted From Modified Cole-Cole Model and Moisture Content Assessment Methods Study on Frequency-Domain Dielectric Spectroscopy of Oil-Paper Insulation[J]. Transactions of China Electrotechnical Society, 2016, 31(10): 26-33.

URL:

https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I10/26

[1] 廖瑞金, 杨丽君, 孙才新, 等. 基于局部放电主成分因子向量的油纸绝缘老化状态统计分析[J]. 中国电机工程学报, 2006, 26(14): 114-119.
Liao Ruijin, Yang Lijun, Sun Caixin, et al. Aging condition assessment of oil-paper based on principal component and factor analysis of partial discharge[J]. Proceedings of the CSEE, 2006, 26(14): 114-119.
[2] 高竣, 王有元, 齐超亮, 等. 温度改变方式对应用频域介电谱法评估油纸绝缘状态的影响[J]. 电工技术学报, 2015, 30(24): 255-261.
Gao Jun, Wang Youyuan, Qi Chaoliang, et al. Effect of temperature change mode on condition assess- ment of oil-paper insulation based on frequency- domain dielectric spectroscopy method[J]. Transa- ctions of China Electrotechnical Society, 2015, 30(24): 255-261.
[3] 廖瑞金, 柳海滨, 周年荣, 等. 绝缘纸热老化对油浸绝缘纸空间电荷生成及迁移特性的影响[J]. 电工技术学报, 2015, 30(22): 206-214.
Liao Ruijin, Liu Haibin, Zhou Nianrong, et al. Influence of insulation paper’s thermal aging on the formation and migration behavior of space charge in oil-paper insulation dielectrics[J]. Transactions of China Electrotechnical Society, 2015, 30(22): 206- 214.
[4] 杨丽君, 廖瑞金, 孙会刚, 等. 油纸绝缘热老化特性及生成物的对比分析[J]. 中国电机工程学报, 2008, 28(22): 53-58.
Yang Lijun, Liao Ruijin, Sun Huigang, et al. Contrasting analysis and investigation on properties and products of oil-paper during thermal aging process[J]. Proceedings of the CSEE, 2008, 28(22): 53-58.
[5] 周利军, 汤浩, 吴广宁, 等. 油纸绝缘微水扩散的稳态分布[J]. 高电压技术, 2007, 33(8): 27-30.
Zhou Lijun, Tang Hao, Wu Guangning, et al. Equi- librium moisture distribution in oil-paper insulation[J]. High Voltage Engineering, 2007, 33(8): 27-30.
[6] Oommen T V. Moisture equilibrium in paper oil insulation[C]//Proceeding of the 16th Electrical/ Electronics Insulation Conference, Chicago, USA, 1983: 659-663.
[7] Franklin A. Simpler measurement of relative humidity in electrical insulating oils[J]. Electrical Review, 1974, 194(13): 370-373.
[8] Kuang Y C, Chen G, Jarman P. Recovery voltage measurement on oil-paper insulation with simple geometry and controlled environment[C]//Proceedings of the IEEE International Conference on Solid Diele- ctrics, Toulouse, France, 2004, 2: 739-742.
[9] Roongroj C, Pattanadech N, Praisuwanna P, et al. Equivalent circuit approximation of transformer insulation by using PDC measurement[C]//5th Inter- national Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, Dhaka, Bangladesh, 2008, 2: 925-928.
[10] Yew J H, Pradhan M K, Saha T K. Effects of moisture and temperature on the frequency domain spectroscopy analysis of power transformer insulation[C]// IEEE Power Engineering Society General Meeting, Pittsburgh, USA, 2008: 1-8.
[11] Wang S Q, Zhang G J, Wei J L, et al. Investigation on dielectric response characteristics of thermally aged insulating pressboard in vacuum and oil-impregnated ambient[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2010, 17(6): 1853-1862.
[12] Soltani R, David E, Lamarre L. Impact of humidity on dielectric response of rotating machines insulation system[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2010, 17(5): 1479-1488.
[13] Linhjell D, Lundgaard L, Gafvert U. Dielectric response of mineral oil impregnated cellulose and the impact of aging[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2007, 14(1): 156-169.
[14] Saha T K, Purkait P. Understanding the impacts of moisture and thermal aging on transformer’s insu- lation by dielectric response and molecular weight measurements[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2008, 15(2): 568-582.
[15] Aradhana R, Sridhar S, Papneja G S, et al. Moisture and dielectric properties analysis of power trans- former by DIRANA measurement[J]. Water and Energy International, 2010, 67(1): 333-344.
[16] 杨双锁, 张冠军, 董明, 等. 基于频域介电谱试验的750kV变压器绝缘状况评估[J]. 高压电器, 2010, 46(4): 16-20. Yang Shuangsuo, Zhang Guanjun, Dong Ming, et al. Insulation condition evaluation of 750kV power transformers based on frequency domain spectros- copy[J]. High Voltage Apparatus, 2010, 46(4): 16- 20.
[17] Zaengl W S. Dielectric spectroscopy in time and frequency domain for HV power equipment I, theoretical considerations[J]. IEEE Transactions on Electrical Insulation Magazine, 2003, 19(5): 5-19.
[18] 孙目珍. 电介质物理基础[M]. 广州: 华南理工大学出版社, 2000.
[19] Tuncer E, Stanislaw M. Electrical properties of filled silicone rubber[J]. Journal of Physica Condensed Matter, 2000, 12(8): 1872-1897.
[20] 杨丽君, 齐超亮, 邓帮飞, 等. 采用修正Cole-Cole模型提取油纸绝缘频域介电谱的特征参量方法[J]. 高电压技术, 2013, 39(2): 310-317.
Yang Lijun, Qi Chaoliang, Deng Bangfei, et al. Application of modified Cole-Cole model to extract characteristics of frequency dielectric spectroscopy of oil-paper insulation[J]. High Voltage Engineering, 2013, 39(2): 310-317.
[21] 国家质检总局. GB/T 1410—2006 固体绝缘材料体积电阻率和表面电阻率试验方法[S]. 2006.