基于便携式直流融冰装置的配电网防冰灾研究

Research on Ice Disaster Prevention Based on Portable DC Ice-melting Device

配电网线路支线多、分布广,目前以人工除冰为主,除冰效率低,发生大面积冰灾时仍然难以应对。文章首先基于便携式直流融冰装置原理及应用,介绍了一种有效的配电网冰灾防治方法,装置体积小、重量轻,可实现4人抬动,融冰灵活方便;其次仿真计算了不同线型导线融冰时的融冰电流和融冰距离,装置每次可对1~2个档距的配电网线路进行融冰;最后根据配电网线路特点研制了快速接线线夹,节省了配电网线路融冰接线时间。便携式直流融冰装置能够对交通不便或环境条件恶劣的配电网线路开展融冰,显著提高了配电网线路抵抗大面积冰灾的能力。

Distribution line is widely spread and has large number of branches. Artificial de-icing is the main method against icing disaster in distribution line currently. Due to its low efficiency,it is still difficult to deal with large ice disaster. Based on the theory and application of portable DC ice-melting device,an effective method of ice disaster prevention is introduced. The device is small in size and light in weight,which can be easily moved to melt ice. This paper makes a simulation calculation of ice-melting currents and distances for different type of lines. For distribution network,this device can melt one or two spans of the line ice at one time. From the characteristics of distribution network line,fast connection wire clip is developed,which can decrease the time in line connection. The device is competent to melt ice in areas of inconvenience transportation and cold weather. It can significantly improve the ability of distribution network against widespread ice disaster.