Time-Domain Characteristic Site Analysis for Ultra-High Frequency Partial Discharge in Power Transformer

您当前的位置：

首页 >

文章列表页 >

Time-Domain Characteristic Site Analysis for Ultra-High Frequency Partial Discharge in Power Transformer

更新时间：2025-07-09

- Time-Domain Characteristic Site Analysis for Ultra-High Frequency Partial Discharge in Power Transformer
- Vol. 45, Issue 12, Pages: 82-86+128(2011)
- 作者机构：
  
  西安交通大学电力设备电气绝缘国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM855
- Online First：10 December 2011，
  
  Published：2011
- 稿件说明：
移动端阅览
Time-Domain Characteristic Site Analysis for Ultra-High Frequency Partial Discharge in Power Transformer[J]. 2011, 45(12): 82-86+128.
DOI：

Time-Domain Characteristic Site Analysis for Ultra-High Frequency Partial Discharge in Power Transformer[J]. 2011, 45(12): 82-86+128. DOI：

摘要

对安装在同一台变压器上的两个超高频天线传感器连续采集的电磁波信号进行时间差和累积能量比分析

采用高斯函数对电磁波时域信号进行拟合

并通过拟合曲线相似度归纳了现场超高频信号的特征拟合曲线.分析表明

时间差与累积能量比的关系可以用来判断安装在不同位置的传感器同时采集的变压器局部放电电磁波信号是否来自同一个放电源; 两个传感器同时采集到的来自同一放电源的电磁波应具有较高的相似度

有助于更准确地判断电磁波是否来自同一放电源; 时域拟合波形能够去除由于微小干扰导致的波形差异

能够判断变压器局部放电类型

从而可以通过超高频局部放电电磁波信号对变压器实施局部放电故障诊断.

Abstract

The relationship between time-of-fight difference and accumulation energy is introduced to analyze the time-domain waveform of ultra-high frequency electromagnet(EM)wave induced by partial discharge(PD)from interior of transformer. Gauss function is applied to fit the waveform of EM

and the characteristics of EM are presented by the statistical analysis for all the fitting curves. It is shown that the relationship between time-of-flight difference and accumulation energy enables to identify whether the EM signals acquired by different sensors come from the same source of PD and more accurately to determine whether the EM signals come from the same source of PD due to the high similarity coefficient of EM wave induced by the same PD. And the fitted curves in time domain are beneficial to remove the interference to evaluate the PD pattern.

关键词

Keywords

references

MASAYUKI H, SHINYA O, SATOSHI M. Recent trend of the partial discharge measurement technique using the UHF electromagnetic wave detection method[J]. IEEJ Transactions on Electrical and Electronic Engineering, 2007, 2(5):504-509.

TENBOHLEN S, DENISSOV D, HOEK S M. Partial discharge measurement in the ultra high frequency(UHF)range[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2008,15(6):1544-1552.

丁燕生,唐志国,李成榕,等. 变压器的UHF法局放故障定位初探 [J]. 高电压技术, 2005, 31(11):18-20.

DING Yansheng, TANG Zhiguo, LI Chengrong, et al. Preliminary research on the feasibility of PD location in power transformer using UHF [J]. High Voltage Engineering, 2005, 31(11): 18-20.

孟延辉,唐炬,许中荣,等. 变压器局部放电超高频信号传播特性仿真分析 [J]. 重庆大学学报:自然科学版, 2007, 30(5): 70-74.

MENG Yanhui, TANG Ju, XU Zhongrong, et al. Simulation propagation of partial discharge UHF signals in transformer[J]. Journal of Chongqing University: Natural Science Edition, 2007,30(5): 70-74.

常文治,唐志国,李成榕,等. 变压器局部放电UHF信号传播特性的仿真分析[J]. 高电压技术, 2009, 35(7): 1629-1634.

CHANG Wenzhi, TANG Zhiguo, LI Chengrong, et al. Simulation analysis of PD UHF signal propagation in transformers[J]. High Voltage Engineering, 2009, 35(7):1629-1634.

王颂,李香龙,李军浩,等. 变压器局部放电超高频信号外传播特性的试验研究[J]. 高压电器, 2007, 43(2):101-105.

WANG Song, LI Xianglong, LI Junhao, et al. Experimental study for outside propagation characteristic of the UHF signal emitted by partial discharge in transformers[J]. High Voltage Apparatus, 2007, 43(2):101-105.

冯慈璋, 马西奎. 工程电磁场[M]. 北京:高等教育出版社, 2000: 297-320.

JUDD M D, LI Yang, HUNTER I B B. Partial discharge monitoring for power transformers using UHF sensors: part 1 Sensors and signal interpretation[J]. IEEE Electrical Insulation Magazine, 2005, 21(2): 5-14.

JUDD M D, LI Yang, HUNTER I B B. Partial discharge monitoring for power transformers using UHF sensors: part 2 Field experience[J]. IEEE Electrical Insulation Magazine, 2005, 21(3): 5-13.

PINPART T, JUDD M D. Improving UHF partial discharge location in high voltage equipment[C]∥2009 44th International Universities Power Engineering Conference. New York, NY, USA: IEEE, 2009:537-541.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Propagation Characteristic of Partial Discharge Ultra High Frequency Signals Outside Transformer

Simulation Analysis of Effects of Transformer Windings on Propagation Characteristics of Partial Discharge Electromagnetic Waves

A Review of Research Progress and Prospect of Non-Electric Protection for Large Power Transformers

Construction and Application of Multi-Agent Large Language Model for Power Transformer Fault Diagnosis

Design Optimization of Power Transformer Based on Multilevel Genetic Algorithm

Related Author

李军浩

司文荣

杨景刚

袁鹏

李延沐

李彦明

赵煦 1

孟永鹏 1

Related Institution

School of Electrical Engineering, Xi'an Jiaotong University

State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University

NARI Group Corporation（State Grid Electric Power Research Institute）

School of Electrical Engineering，Xi'an Jiaotong University

西安交通大学电气工程学院，710049，西安School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China

⁰