基于小波变换和相模变换的电力电缆故障测距  

A Fault Location on Underground Power Cable Lines Based on Wavelet Transform and Modal Transform

作　　者：阎爱玲[1] 杨新华[2] 

机构地区：[1]甘肃联合大学理工学院,甘肃兰州730000 [2]兰州理工大学电气工程与信息工程学院,甘肃兰州730050

出　　处：《甘肃科学学报》2009年第2期141-143,共3页Journal of Gansu Sciences

摘　　要：通过将小波变换与相模变换理论相结合,提出了电力电缆故障测距的方法,采用新的相模变换不仅可避免传统行波方法中存在受故障起始角影响的问题,而且单一模量能够反映所有故障类型.仿真结果表明,该方法有很高的测距精度,是可行的.By combining wavelet transform with the modal transform,a new method to locate the faults of a power cable is presented. The use of the new modal transform can not only avoid the influence of the breakdown outset angle existent in traditional traveling wave method,but also reflect all breakdown types by the sole module. The simulation results show that the method is feasible as it has a high accuracy in location.

关 键 词：电力电缆 故障测距 相模变换 小波变换 

分 类 号：TM711[电气工程—电力系统及自动化]