超/特高压长串瓷绝缘子温度分布曲线拼接方法
DOI:
作者:
作者单位:

1.国网湖北省电力有限公司电力科学研究院;2.湖南大学;3.湖南湖大华龙电气与信息技术有限公司;4.郑州大学

作者简介:

通讯作者:

中图分类号:

基金项目:

国家电网总部科技指南项目(52153219000F)


Temperature Distribution Curve Splicing Method for EHV/UHV Long String Porcelain Insulators
Author:
Affiliation:

1.Hubei Institute of Electric Power Science;2.Hunan University;3.HDHL Electric and Information Technology Co., Ltd.;4.Zhengzhou University;5.HDHL Electric and Information Techonolgy Co., Ltd.

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    红外热像检测法在瓷绝缘子低零值诊断领域拥有独特的优越性。但由于超/特高压瓷绝缘子串长度过大,常用工业热像仪/机载镜头难以清晰地拍摄超/特高压瓷绝缘子全串红外图谱,对基于全串温度特征的劣化智能诊断造成了严重困难。针对此现实难题,本文提出了一种基于加权数据融合的双段温度曲线拼接方法。本方法避免了常规红外图像拼接方法存在的目标缺失问题,且相比于舍入拼接、中点拼接等曲线拼接方法具有较高的拟合准确性。以1000kV绝缘子串为例阐明了所提曲线拼接方法的基本算法和流程;以500kV绝缘子串为例,进行了多种曲线拼接方法的对比研究,分析验证了所提方法的有效性与可行性。

    Abstract:

    The infrared thermal image detection method has unique advantages in low/zero value diagnosis of porcelain insulators. However, an EHV/UHV porcelain insulator string is generally too long to be entirely displayed in a single infrared image by an industrial thermal camera/airborne thermal lens, which causes serious difficulties to the intelligent diagnosis of deterioration based on the whole string temperature characteristics. To solve this problem, this article proposes a two-stage temperature curve splicing method based on weighted data fusion. This method can avoid problems of target missing by infrared image mosaic technology, and has higher fitting accuracy compared with curve splicing methods such as rounding and midpoint splicing. The basic algorithm and process of the proposed curve splicing method are illustrated through an example of a 1000kV insulator string. A comparative study of various curve splicing methods is carried out by taking a 500kV insulator string into account, before the effectiveness and feasibility of the proposed method are verified.

    参考文献
    相似文献
    引证文献
引用本文
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2021-04-23
  • 最后修改日期:2021-06-10
  • 录用日期:2021-07-26
  • 在线发布日期:
  • 出版日期: