架空输电线路脱冰跳跃模拟试验研究

Research of Simulated Test on Deicing Jump of Overhead Transmission Lines

为了分析架空输电线在覆冰脱落各种工况下的跳跃位移,寻求合理的脱冰方式,设计了覆冰模拟系统、覆冰脱落控制系统和位移测试系统,在临汾电力学校的实际线路上对单档导线进行了7种不同的覆冰脱落工况模拟实验,得到了各种工况下的脱冰跳跃位移,并进行了有限元模拟.结果表明:为了使脱冰跳跃位移最小,对于单档导线应遵循先两端脱冰后中部脱冰的顺序,这与有限元模拟结果的规律一致.

In order to analyze the jump displacement of overhead transmission line under different conditions of icing shedding and to find a reasonable way of icing shedding,the icing simulation system,the icing shedding control system and the displacement measurement system were designed.Seven different simulating experiments of icing shedding conditions were carried out on the actual line of Linfen Electric Power School.The deicing jump displacements under various working conditions were obtained and simulated by finite element software.The results show that,in order to minimize the jump displacement of deicing,the order of deicing at both ends first and then the middle should be followed for a single conductor,which is consistent with the results of FEM simulation.