摘要
基于500 kV交流输电线路上的双串悬式瓷绝缘子串,对自主研制的一款超、特高压绝缘子检测机器人的典型部件周围的电场分布进行了仿真计算,分析了部件形状、尺寸以及所携带的电场测量探头对局部最大电场强度的影响规律,进而给出了机器人部件形状、尺寸及电场测量探头的优化设计。研究结果表明:机器人导向机构金属支撑杆端部电场较大,非常可能引发放电,采用绝缘材料后,可大大降低其表面最大场强;控制箱进行倒角处理或采用球形结构可大大降低其表面最大场强;电场测量探头直径不宜超过10 cm,与绝缘子伞裙间隙应大于1 cm。
In this paper, based on the double-string suspension porcelain insulator on a 500 kV transmission line, the electric fields around the typical structures of a self-designed robot are simulated. The influence rules of the formation and the scale of the typical structures on the maxim electric field, and the rule of the electric field probe on the maxim electric field are analyzed. Furthermore, the optimal design of the typical structures is suggested. The results show that the electric field at the terminal of the metal guide rod is very high, even could lead to flashover. The guide rod should be made of insulating material, so that the electric field around it will fall down greatly. The metal control box with smooth edge or spherical structure can greatly reduce the amplitude of the electric field around it. At the same time, the diameter of the electric field probe should not exceed 10 cm, and the gap between the probe and the shed of the insulator should be larger than 1cm.
出处
《电瓷避雷器》
CAS
北大核心
2017年第2期180-185,共6页
Insulators and Surge Arresters
关键词
输电线路
绝缘子
检测
机器人
电场
transmission line
insulators
detection
Robot
electric field
作者简介
贾娟（1987-），女，工程师，研究方向为电力机器人。
