[1]付炜平,施凤祥,王伟,等.基于决策树的劣化瓷质绝缘子的判定阈值选择方法与诊断[J].高压电器,2019,55(04):149-154.[doi:10.13296/j.1001-1609.hva.2019.04.021]
 FU Weiping,SHI Fengxiang,WANG Wei,et al.Discriminating Threshold Selection Method and Diagnosis of Deteriorated Porcelain Insulator Based on Decision Tree[J].High Voltage Apparatus,2019,55(04):149-154.[doi:10.13296/j.1001-1609.hva.2019.04.021]
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基于决策树的劣化瓷质绝缘子的判定阈值选择方法与诊断()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第55卷
期数:
2019年04期
页码:
149-154
栏目:
研究与分析
出版日期:
2019-04-15

文章信息/Info

Title:
Discriminating Threshold Selection Method and Diagnosis of Deteriorated Porcelain Insulator Based on Decision Tree
文章编号:
0149-0154
作者:
付炜平1 施凤祥1 王伟1 刘云鹏2 张凯元2 裴少通2
1. 国网河北省电力公司检修分公司,石家庄050071;2. 华北电力大学电气工程系,河北保定071003)
Author(s):
FU Weiping1SHI Fengxiang1WANG Wei1LIU Yunpeng2ZHANG Kaiyuan2PEI Shaotong2
1. Hebei Electric Power Maintenance Company,Shijiazhuang 050071,China;2. North China Electric Power University, Hebei Baoding 071003,China)
关键词:
红外成像低值绝缘子检测阈值决策树
Keywords:
infrared thermal imagedeteriorated insulatorthresholddecision tree
DOI:
10.13296/j.1001-1609.hva.2019.04.021
摘要:
通过观察辨识不同电压等级下输电线路中瓷质绝缘子的原始红外图像的特征,提出了一种基于决策 树的劣化瓷质绝缘子的识别与判定的方法。在不同湿度温度下,传统的检测阈值变化较大,通过提取原始 红外图像的数据,选取绝缘子串中单片绝缘子的钢帽温度、最大温度、钢帽瓷件温度差、绝缘子瓷件环境温 度差、单片绝缘子的最大温升百分比及单片绝缘子温度方差这6个变量作为输入参数,以绝缘子绝缘程度的 优劣作为输出,利用决策树,选择了最优检测阈值组合,建立了裂化绝缘子的智能检测模型。得出钢帽瓷件 温度差及瓷件环境温度差为最优检测阈值组合这一结论,并利用这一阈值组合对红外图片进行了检测,测 试结果显示平均正确率达到98.2%。该方法为劣化绝缘子的智能检测提供了新的思路,并通过实际实验证 明了其可行性。
Abstract:
By discerning the original infrared pictures of insulator strings under transmission lines of different volt? age level,a deteriorated insulator diagnose model based on decision tree is proposed. As the traditional threshold changes a lot under different weather conditions,by utilizing decision tree,this paper selects the premium threshold combination and builds the deteriorated insulator diagnose model,choosing from the six alternative thresholds: the max temperature of single piece of insulator,the temperature of insulators steel?cap,the temperature difference be? tween insulator steel?cap and porcelain,the temperature difference between insulator porcelain and environment, the temperature variance of single piece of insulator and the max temperature rise percentage of single piece of insula? tor. A conclusion that the temperature difference between insulator steel?cap and porcelain and the temperature dif? ference between insulator porcelain and environment consist the premium threshold combination is obtained. The av? erage accuracy reaches up to 98.2%. This method provides new approach for further research in detecting deteriorat? ed insulator and tests in the laboratory attest the feasibility of the model.

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备注/Memo

备注/Memo:
收稿日期:2018?08?15; 修回日期:2018?10?07; 付炜平(1976—),男,高级工程师,主要从事变电一次设 备管理工作。
更新日期/Last Update: 2019-04-16