基于SSD算法500 kV避雷器内部绝缘缺陷带电检测  

On⁃line detection of internal insulation defect of 500 kV arrester based on SSD algorithm

作　　者：李晶 杨耸立 LI Jing;YANG Songli(Dalian Power Supply Company,State Grid Liaoning Electric Power Co.,Ltd.,Dalian 116000,China)

机构地区：[1]国网辽宁省电力有限公司大连供电公司,辽宁大连116000

出　　处：《电子设计工程》2022年第22期112-116,共5页Electronic Design Engineering

摘　　要：针对以往使用的置信度法、R检验法稳定性较差,导致避雷器内部绝缘缺陷带电检测精准度低的问题,提出基于SSD算法的500 kV避雷器内部绝缘缺陷带电检测。建立SSD框架,设定最佳映射解,通过堆叠方法获取映射解,使用SSD算法训练数据。通过确定的训练样本,计算损失函数,确定避雷器内部绝缘缺陷位置。当避雷器指示值过大、过小或不停摆动时,带电检测500 kV避雷器内部绝缘缺陷,确定其内部老化原因。由实验结果可知,该算法温差变化最大为14.2℃,与实际温差变化一致,说明该方法带电检测精准度较高。In view of the poor stability of the confidence method and R⁃test method used in the past,which leads to the low accuracy of on⁃line detection of internal insulation defects of lightning arresters,an on⁃line detection of internal insulation defects of 500 kV lightning arresters based on SSD algorithm is peopoesd.The SSD framework is established,the best mapping solution is set,the mapping solution is obtained by stacking method,and the SSD algorithm is used to train the data.Through the determined training samples,the loss function is calculated to determine the location of internal insulation defects.When the indication value of the arrester is too large,too small or non⁃stop swing,the internal insulation defects of the 500 kV arrester are detected live to determine the internal aging reason.The experimental results show that the maximum temperature difference change of the algorithm is 14.2℃,which is consistent with the actual temperature difference change,indicating that the method has high accuracy of live detection.

关 键 词：SSD算法 500 kV避雷器 内部绝缘 老化缺陷 带电检测 

分 类 号：TN948.6[电子电信—信号与信息处理]