基于频域介电谱的油纸绝缘宽频等效模型参数辨识研究

doi:10.19595/j.cnki.1000-6753.tces.170043

Abstract
Figure/Table
References (22)
Related Citation (15)

Download: PDF (16861 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract To provide underlying knowledge for interpretation of frequency domain spectroscopy (FDS) measurements and characterization of oil-impregnated paper (OIP) insulation status, FDS propertieswere investigated first in this paper based on the extended Debye model (EDM). In particular, a method was proposed to determine values of the resistor and the capacitor in each branch of the EDM using FDS curves. First, two real-life OIP condenser bushings were employed, in whichmoistureingresswas simulated at different levels, and the FDS curves of the two bushings were measured. Thereafter, a fusion method integrating the genetic and Levenberg-Marquardtalgorithms was employed to calculate the model parameters, which solves the problem of pool matching between the EDM and FDS. In this sense, a wide-band model (in the frequency orders between 10^-3~10³Hz)of dielectric response of OIP insulation has been established. Further, the recovery voltage method (RVM) curves of the two bushingsweretransformed from the resulted EDM. By comparative analysis with the measured RVM results, the proposed method is proven to feature good universality in time and frequency domain. This work presents indications for the quantitativeassessment of OIP insulation condition as further research.

Key words： Oil-impregnated paper insulation frequency domain spectroscopy extended Debye model parameter identification

Received: 12 January 2017 Published: 14 March 2018

PACS:

TM855

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Du Lin
	Yang Feng
	Wei Chao
	Wang Youyuan
	Wu Xiong
	Ran Liman

Cite this article:

Du Lin,Yang Feng,Wei Chao等. Parameter Identification of the Wide-Band Model of Oil-Impregnated Paper Insulation Using Frequency Domain Spectroscopy[J]. Transactions of China Electrotechnical Society, 2018, 33(5): 1158-1166.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170043 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I5/1158

[1] Saha T K.Review of modern diagnostic techniques for assessing insulation condition in aged transformers[J]. IEEE Transactions on Dielectrics & Electrical Insulation, 2003, 10(5): 903-917.
[2] 严璋, 朱德恒. 高电压绝缘技术[M]. 北京:中国电力出版社, 2015.
[3] 杨丽君, 黄加佳, 许佐明, 等. 高压交流套管的油纸绝缘热老化特性及寿命模型研究[J]. 电工技术学报, 2016, 31(5): 144-151.
Yang Lijun, Huang Jiajia, Xu Zuoming, et al.Investigation on thermal aging characteristics and lifetime model of oil-paper insulation for HV AC bushing[J]. Transactions of China Electrotechnical Society, 2016, 31(5): 144-151.
[4] Ma H, Saha T K, Ekanayake C, et al.Smart transformer for smart grid-intelligent framework and techniques for power transformer asset management[J]. IEEE Transactions on Smart Grid, 2015, 6(2): 1026-1034.
[5] 肖天为, 张强, 黄炎光, 等. 特高频方法用于套管局部放电检测的可行性研究[J]. 电网技术, 2015, 39(6): 1719-1724.
Xiao Tianwei, Zhang Qiang, Huang Yanguang, et al.Experimental research on partial discharge location for bushings using UHF method[J]. Power System Technology, 2015, 39(6): 1719-1724.
[6] Jonscher A K.固体中的介电弛豫[M]. 西安:西安交通大学出版社, 2008.
[7] 林燕桢, 蔡金锭. 回复电压极化谱特征量与油纸绝缘变压器微水含量关系分析[J]. 电力系统保护与控制, 2014, 42(5): 148-153.
Lin Yanzhen, Cai Jinding.Analysis of the relationship between the characteristics of the return voltage polarization spectrum and micro water content of oil-paper insulation transformer[J]. Power System Protection and Control, 2014, 42(5): 148-153.
[8] 郭洪英. 基于回复电压极化谱小波包变换的变压器绝缘老化诊断方法[J]. 电力系统保护与控制, 2016, 44(24): 170-175.
Guo Hongying.Diagnostic method of transformer insulation aging based on the recovery voltage polarization spectrum’ wavelet packet transform[J]. Power System Protection and Control, 2016, 44(24): 170-175.
[9] 郑君亮, 江修波, 蔡金锭, 等. 去极化电流解谱分析油纸绝缘等效电路参数研究[J]. 电力系统保护与控制, 2014, 42(21): 54-58.
Zhen Junliang, Jiang Xiubo, Cai Jindian, et al.Research on spectrum analysis of the depolarization current to identify the parameter of oil/paper insulation equivalent circuit[J]. Power System Protection and Control, 2014, 42(21): 54-58.
[10] 吴文宣, 张孔林, 蔡金锭, 等. 基于去极化电流子谱线的油纸绝缘老化评估[J]. 电气技术, 2015, 16(6): 25-28, 72.
Wu Wenxuan, Zhang Konglin, Cai Jinding, et al.Aging condition evaluation of oil-paper insulation based on depolarization current sub-lines[J]. Electrical Engineering, 2015, 16(6): 25-28, 72.
[11] 廖瑞金, 刘捷丰, 杨丽君, 等. 电力变压器油纸绝缘状态评估的频域介电特征参量研究[J]. 电工技术学报, 2015, 30(6): 247-254.
Liao Ruijin, Liu Jiefeng, Yang Lijun, et al.Investigation on frequency domain dielectric characteristics for condition assessment of transformer oil-paper insulation[J]. Transactions of China Electrotechnical Society, 2015, 30(6): 247-254.
[12] 杨丽君, 齐超亮, 吕彦冬, 等. 变压器油纸绝缘状态的频域介电谱特征参量及评估方法[J]. 电工技术学报, 2015, 30(1): 212-219.
Yang Lijun, Qi Chaoliang, Lü Yandong, et al.Characteristic parameters and assessment methods of frequency-domain dielectric spectroscopy of oil-paper insulation for transformers[J]. Transactions of China Electrotechnical Society, 2015, 30(1): 212-219.
[13] Jadav R B, Ekanayake C, Saha T K.Understanding the impact of moisture and ageing of transformer insulation on frequency domain spectroscopy[J]. IEEE Transactions on Dielectrics & Electrical Insulation, 2014, 21(1): 369-379.
[14] 董明, 刘媛, 任明, 等. 油纸绝缘频域介电谱解释方法研究[J]. 中国电机工程学报, 2015, 35(4):1002-1008.
Dong Ming, Liu Yuan, Ren Ming, et al.Explanation study of frequency-domain dielectric spectroscopy for oil-paper insulation system[J]. Proceedings of the CSEE, 2015, 35(4):1002-1008.
[15] 杨丽君, 高思航, 高竣, 等. 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[J]. 电工技术学报, 2016, 31(10): 26-33.
Yang Lijun, Gao Sihang, Gao Jun, et al.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.
[16] Saha T K, Purkait P, Muller F.Deriving an equivalent circuit of transformer insulation for understanding the dielectric response measurements[J]. IEEE Transactions on Power Delivery, 2005, 20(1): 149-157.
[17] 汤明杰, 雷敏, 白帆, 等. 采用向量匹配法的油纸绝缘系统扩展Debye模型参数识别[J]. 高电压技术, 2014, 40(2): 548-556.
Tang Mingjie, Lei Min, Bai Fan, et al.Parameter identification based on vector fitting method for extended Debye model of oil-paper insulation system[J]. High Voltage Engineering, 2014, 40(2): 548-556.
[18] 王骞. 基于介质响应原理的油纸绝缘结构老化机理研究[D]. 武汉: 华中科技大学, 2013.
[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] Zhang Tao, Li Xiaoqin, Lü Haoyun, et al.Parameter identification and calculation of return voltage curve based on FDS data[J]. IEEE Transactions on Applied Superconductivity, 2014, 24(5): 1-5.
[21] Kumar A, Mahajan S M.Correlation between time and frequency domain measurements for the insulation diagnosis of current transformers[C]//North American Power Symposium, IEEE Xplore, Arlington, USA, 2010: 1-5.
[22] Xu S, Middleton R, Fetherston F, et al.A comparison of Return voltage measurement and frequency domain spectroscopy test on high voltage insulation[C]//International Conference on Properties and Applications of Dielectric Materials, Nagoya, Japan, 2003: 351-355.