[1]徐 华,陈高洋,尹骏刚,等.基于三参数Burr分布的悬式瓷绝缘子零值温差分布特性研究[J].电瓷避雷器,2020,(01):209-213.[doi:10.16188/j.isa.1003-8337.2020.01.035]
 XU Hua,CHEN Gaoyang,YIN Jungang,et al.Temperature Difference Distribution of Zero-Valued Porcelain Insulator Based on Three-Parameter Burr Distribution[J].,2020,(01):209-213.[doi:10.16188/j.isa.1003-8337.2020.01.035]
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基于三参数Burr分布的悬式瓷绝缘子零值温差分布特性研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年01期
页码:
209-213
栏目:
绝缘子
出版日期:
2020-02-20

文章信息/Info

Title:
Temperature Difference Distribution of Zero-Valued Porcelain Insulator Based on Three-Parameter Burr Distribution
作者:
徐 华1 陈高洋2 尹骏刚2 胡俊华1 周阳洋1 朱向前3戴哲仁1 李伟勇1 姚建刚2
(1.国网浙江省电力有限公司, 杭州 310007; 2.湖南大学电气与信息工程学院,长沙 410082; 3.湖南湖大华龙电气与信息技术有限公司, 长沙 410285)
Author(s):
XU Hua1 CHEN Gaoyang2 YIN Jungang2 HU Junhua1 ZHOU Yangyang1ZHU Xiangqian2 DAI Zheren1 LI Weiyong1 YAO Jiangang2
(1.State Grid Zhejiang Electric Power Company, LTD, Hangzhou 310007, China; 2.College of Electrical and Information Engineering, Hunan University, Changsha 410082, China; 3.HDHL Electrical and Information Technology Co., Ltd., Changsha 410285, China)
关键词:
零值温差 三参数Burr分布 最大似然估计 牛顿法 Kolmogorov-Smirnov检验
Keywords:
Zero-valuedtemperature difference three-parameter Burr distribution maximum likelihood estimation Kolmogorov-Smirnov test
DOI:
10.16188/j.isa.1003-8337.2020.01.035
摘要:
提出一种基于三参数Burr分布的估计方法来描述零值悬瓷绝缘子的温度分布特性。为验证这一方法,以某省电网运行10年及以上变电站悬式绝缘子红外测零项目的红外测温数据为研究对象,通过统计分析建立了三参数Burr分布数学模型。由于该分布函数的参数在极大似然估计法下没有显式解,故采用牛顿法对其求解,可得到三参数Burr分布对绝缘子零值温差分布的拟合曲线; 然后,在MATLAB中利用Kolmogorov-Smirnov方法对于该分布模型进行了参数检验。检验结果表明,三参数Burr分布能很好地拟合零值绝缘子的温差分布特性。由此提出了悬瓷绝缘子零值温差分布特性的统计模型,为绝缘子红外测零判别阈值的选定提供了参考依据。
Abstract:
Aiming at the problem of discrete temperature distribution of zero-value porcelain insulators, a three-parameter Burr distribution estimation method was proposed to describe its distribution characteristics. In order to verify this method, a three-parameter Burr distribution mathematical model was established through statistical analysisbased on the actual measurement data of the infrared detection insulatorsinthe substation operated more than 10 years. Since the parameters of the distribution have no explicit solution under the maximum likelihood estimation method, Newton's method is used to solve it, and the fitting curve of the three-parameter Burr distribution to the zero-valued temperature distribution of the insulator can be obtained; then, the MATLAB-calculated parameters are tested using the K-S method. The test results show that the three-parameter Burr distribution can well fit the temperature distribution characteristics of zero-valued insulators. This paper presents a statistical model of the temperature difference distribution characteristics of zero-valued porcelain insulators, which provides an effective theoretical basis for determining the degradation threshold of the infrared detection on high-voltage porcelain insulators.

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备注/Memo

备注/Memo:
收稿日期:2018-05-22作者简介:徐华(1979—), 男,高级工程师,主要从事开关、过电压设备运检管理。基金项目:浙江省电力有限公司科研基金项目(编号:5211MR16000A)。
更新日期/Last Update: 2020-02-20