电气工程学报 ›› 2022, Vol. 17 ›› Issue (4): 275-281.doi: 10.11985/2022.04.029

• 电力系统 • 上一篇    下一篇

扫码分享

基于深度迁移学习的配电线路绝缘子状态监测方法*

宰红斌1(), 刘建国1(), 张文岗1(), 封士永2(), 祖国强3()   

  1. 1.国网晋城供电公司 晋城 048000
    2.南瑞集团(国网电力科学研究院)有限公司 南京 211106
    3.国网天津市电力公司电力科学研究院 天津 300384
  • 收稿日期:2021-03-29 修回日期:2021-10-14 出版日期:2022-12-25 发布日期:2023-02-03
  • 作者简介:宰红斌,男,1971年生,高级工程师。主要研究方向为输电线路防灾减灾,运行维护与带电作业等。E-mail:qazw3182@163.com
    刘建国,男,1969年生,高级工程师。主要研究方向为电气工程及其自动化。E-mail:ljg8837490@126.com
    张文岗,男,1979年生,高级工程师。主要研究方向为电力系统自动化。E-mail:zhangwengang0517@126.com
    封士永,男,1988年生,硕士,高级工程师。主要研究方向为电力物联网。E-mail:s398493858009@gmail.com
    祖国强,男,1989年生,博士,工程师。主要研究方向为配电网规划运行。E-mail:guoqiangzu1@tj.sgcc.com.cn
  • 基金资助:
    *国家重点研发计划(2017YFB0902800);国网天津市电力公司科技(KJ20-1-27)

Insulator Condition Monitoring Method of Distribution Line Based on Deep Transfer Learning

ZAI Hongbin1(), LIU Jianguo1(), ZHANG Wengang1(), FENG Shiyong2(), ZU Guoqiang3()   

  1. 1. State Grid Jincheng Power Supply Company, Jincheng 048000
    2. NARI Group (State Grid Electric Power Research Institute) Co., Ltd., Nanjing 211106
    3. State Grid Tianjin Electric Power Research Institute, Tianjin 300384
  • Received:2021-03-29 Revised:2021-10-14 Online:2022-12-25 Published:2023-02-03

摘要:

针对传统人工巡线的方法不适用于近距离监测配电线路绝缘子状态以及现有方法精度低等问题,提出一种基于深度迁移学习的配电线路绝缘子状态监测方法。首先,智能配电终端汇集配电线路上的摄像机获取的绝缘子图像,利用尺度不变特征变换(Oriented FAST and rotated BRIEF,ORB)算法提取图像特征,采用灰度质心法以保证图像特征点发生旋转后性质不改变。然后,根据获取的图像特征,将深度学习与迁移学习算法结合,对图像特征进行训练,实现绝缘子状态的分类。最后,基于Matlab仿真平台将所提方法与其他组合方法在常见场景中进行试验分析。试验结果表明,相比于其他组合方法,所提方法能够在不同环境中准确监测绝缘子状态,并且分类准确度更高。

关键词: 绝缘子状态监测, ORB算法, 特征分析, 深度迁移学习, 状态分类

Abstract:

In view of the fact that the traditional manual line inspection method is not suitable for short-range monitoring of insulator status of distribution lines, and the existing methods have the problems of low accuracy, a new method based on deep transfer learning for insulator status monitoring of distribution lines is proposed. Firstly, the intelligent distribution terminal collects the insulator images obtained by the camera on the distribution line, extracts the image features by oriented FAST and rotated BRIEF(ORB) algorithm, and adopts gray centroid method to ensure that the properties of the image feature points do not change after rotation. Then, according to the acquired image features, the depth learning and transfer learning algorithm are combined to train the image features and realize the insulator state classification. Finally, based on Matlab simulation platform, the proposed method and other combination methods are tested and analyzed in common scenes. Experimental results show that compared with other combination methods, the proposed method can accurately monitor insulator status in different environments, and the classification accuracy is higher.

Key words: Insulator state monitoring, ORB algorithm, feature analysis, deep transfer learning, state classification

中图分类号: