Application of the Weibull Distribution to Recognition of GIS PD Phenomena

BU Ke-wei1; TANG Jing-hong2; MI Chu-ming3; LI Da-jian4

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Application of the Weibull Distribution to Recognition of GIS PD Phenomena

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- Application of the Weibull Distribution to Recognition of GIS PD Phenomena
- High VoltageApparatus Vol. 45, Issue 3, Pages: 81-84+88(2009)
- 作者机构：
  
  1. 青海海东供电公司电能计量检测中心
  2. 西北西宁输变电运行公司
  3. 西安科技大学能源学院
  4. 西安交通大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM835
- Published：2009
- 稿件说明：
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[1]步科伟,汤景鸿,米楚明,黎大健.Weibull分布在GIS局部放电识别中的应用[J].高压电器,2009,45(03):81-84+88.

BU Ke-wei1, TANG Jing-hong2, MI Chu-ming3, et al. Application of the Weibull Distribution to Recognition of GIS PD Phenomena[J]. High voltageapparatus, 2009, 45(3): 81-84+88.
[1]步科伟,汤景鸿,米楚明,黎大健.Weibull分布在GIS局部放电识别中的应用[J].高压电器,2009,45(03):81-84+88. DOI：

BU Ke-wei1, TANG Jing-hong2, MI Chu-ming3, et al. Application of the Weibull Distribution to Recognition of GIS PD Phenomena[J]. High voltageapparatus, 2009, 45(3): 81-84+88. DOI：

摘要

为了研究Weibull分布函数在GIS局部放电类型定性分析中的应用

在实验室以一段220 kV电压等级的GIS母线腔体为试验对象

以3种典型的人工缺陷局部放电模型为例

对不同放电源的PDHD进行了比较

用Weibull概率分布函数进行分析并估算其参数。研究表明

此概率函数与局部放电幅值分布吻合

用Weibull分布的形状参数β值可以较好地识别不同局部放电类型

在两种放电源混合时可以使用混合Weibull函数分离其放电信号。研究结果为今后对GIS局部放电模式识别提供了试验和数据依据。

Abstract

Taking a 220 kV GIS bus bar cavity as a test object

three typical defect-induced PD models of GIS are designed and simulated.The partial discharge height distributions of different PD sources are compared

and the Weibull distribution is adopted to estimate the parameters.The results show that the probability function perfectly fits the partial discharge height

different discharge sources can be recognized according to the shape parameter of Weibull distribution

and the mixed signal of combined two PD sources can be separated with the mixed Weibull function.This study may lay the foundation of data and experiment for PD pattern recognition of GIS.

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