变电设备激光除冰技术的应用分析

Application Analysis of Laser Deicing Technology in Substation Equipment

覆冰是我国电网系统所受的最严重的自然灾害之一。变电设备外绝缘覆冰会引发绝缘子闪络、线路跳闸和变电站失压、停运等事故,严重影响输电系统的正常运行。因此有必要对其进行除冰作业,而激光由于自身的特性在电网除冰方面具有独特的优势。本文首先简要概述冰对激光的吸收特性和两者相互作用的热力模型阐明激光除冰的机理,接着对现有激光除冰研究进行了综述,最后对激光除冰技术的发展进行展望。

Icing is one of the most serious natural disasters to the power grid system in China.The icing on the external insulation of substation equipment can lead to insulatorflashover,circuit tripping,and substation voltage loss,causing disruptions to the normal operation of the transmission system.Therefore,it is necessary to carry out de-icing operations,and the laser has a unique advantage in de-icing due to its unique characteristics.In this paper,the laser absorption properties of ice and the thermodynamic model of the interaction between the ice and laser are briefly summarized to clarify the mechanism of laser deicing.Finally,the prospects for laser de-icing technology are discussed.