热带地区输电线路鸟粪闪络特性模拟试验研究

发布时间：2018-01-24 14:16

本文关键词： 热带地区输电线路鸟粪闪络模拟试验绝缘子串击穿　出处：《高电压技术》2016年01期 　论文类型：期刊论文

【摘要】：随着我国生态迅速恢复,电力系统发展与鸟类生态完善的冲突日益上升。为了研究热带地区输电线路的鸟粪闪络,在了解热带地区主要对线路造成危害的鸟类种群的基础上,模拟热带地区的典型环境条件,采用模拟鸟粪进行了110 k V输电线路鸟粪闪络的试验研究。试验结果表明:鸟粪电导率随着含水率升高呈饱和增加趋势;含水率比较低的时候,鸟粪闪络的概率远高于积污闪络的概率,含水率较高的时候,鸟粪闪络概率与积污闪络基本相同;鸟粪引起的击穿概率与鸟粪的流量成饱和正相关关系,击穿概率与鸟粪通道和绝缘子的距离成负相关关系;110 k V输电线路I型绝缘子串15 cm的空间范围内是大型鸟类排便闪络击穿的高危险区域,可以通过增加均压环或增加绝缘子大伞的间隙来降低鸟粪闪络概率。所获结果可供热带地区110 k V线路的设计和鸟害防治工作参考。
[Abstract]:With the rapid ecological restoration of our country, the conflict between the development of power system and the ecological improvement of birds is rising day by day. In order to study the flashover of bird dung in tropical transmission lines. On the basis of understanding the bird population which is mainly harmful to the track in the tropical region, the typical environmental conditions in the tropical region are simulated. An experimental study on the flashover of guano in 110kV transmission line is carried out by using simulated guano. The results show that the conductivity of guano increases with the increase of water content. When water content is relatively low, the probability of bird dung flashover is much higher than that of product pollution flashover, and when water content is high, the probability of bird dung flashover is basically the same as that of integrated pollution flashover. The breakdown probability caused by guano has a positive correlation with the flow rate of bird dung, and the breakdown probability is negatively correlated with the distance between guano channel and insulator. The 110kV transmission line I insulator string is a high risk area for flashover breakdown of large bird defecation in the space range of 15 cm. The probability of bird dung flashover can be reduced by increasing the equal pressure ring or increasing the gap of the insulator umbrella. The results obtained can be used as reference for the design of 110 kV lines in the tropics and the prevention and control of bird damage.
【作者单位】：国网赣西供电公司;国网电力科学研究院;国网厦门供电公司;广州供电局有限公司电力试验研究院;
【基金】：国家重点基础研究发展计划(973计划)(2009CB724507)~~
【分类号】：TM752
【正文快照】： 0引言1我国热带地区分布较广,包括广东、福建、广西、云南大部分地区、江西和贵州南部地区等区域,——以典型的红壤为主,是热带经济林木、经济作物和粮食生产的重要基地[1-4],该地区同时是经济密集地区,电力需求非常旺盛,但经济的发展对生态环境造成了很大破坏。随着生态意识

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