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科技之光照亮冷极电网

2017-08-24 08:18:33   中国青年网

在终端室查看、测试远传图像和数据

在线监测系统将彻底结束职工们顶严寒冒风雪艰难巡线的历史

“北风卷地白草折,胡天八月即飞雪。”这是古代边塞风光,却成为今日中国冷极内蒙古呼伦贝尔的真实写照。25.3万平方公里的土地面积,长达9个月的供热期,加之冬季零下40℃的平均气温,给地区电网安全运行带来极大的压力。

国网蒙东电力经过多年的不懈努力,终于在电网科技发展方面迈出坚实步履,用科技之光给冷极电网带来福音。

无人机巡检:地面“擒贼”变为飞天“捉妖”

供电单位输电专业员工都知道,在高山、密林中和沼泽地带巡视线路有多苦!2017年6月18日,同样是进行深山巡视作业,同样是酷暑骄阳和泥泞深流,但是员工们却个个精神振奋。因为今天,他们要开始一项彻底改变以往作业方式的工作——利用无人机对输电线路进行巡视作业!

工作负责人一声令下,一架翼展3米长的固定翼无人机在螺旋桨的轰鸣声中,快速飞升至±500千伏伊穆直流铁塔上方。迅速传回地面站的高清影像和数据信息,标志着国网呼伦贝尔供电公司2017年首次使用无人机巡检架空输电线路取得成功。

无人机首飞成功,输电专工杨雪城和同事们激动得心都快跳出来了:“以前我们在地面步行巡视,就跟捉贼一样,东瞅瞅,西看看,左顾右盼。大老远的看见杆塔有倾斜,走过去就需要几个小时的时间,累得气喘吁吁。现在好啦,只要动动手指,无人机就会飞过去,把现场情况看得清清楚楚,简直就是‘飞天捉妖’!”

该公司副总经理陈远东介绍,目前,输电网的不断扩大与电网运行维护人员数量相对不足之间的矛盾逐渐显现。无人机和人工巡检相互协同的新型巡检模式是坚强智能电网发展的迫切需要。尤其在大兴安岭地区,输电线路大多分布在崇山峻岭之间。无人机巡检不受地形限制,能在一些人工巡线无法到达的高山、深沟、跨河等地方了解线路状态。不仅能够发现杆塔异物、绝缘子破损、防震锤滑移、线夹偏移等缺陷,还能够发现闪络故障点等人工巡检难以发现的隐患。而且直升机每小时可巡检50基铁塔,相当于10名巡线工人在山区巡线一天的工作量。同时还发挥了效率高、范围大、机动灵活、利于辨识隐蔽缺陷等优势。

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