一种应用于井下线路绝缘状态的检测方法  

Method of Detecting Insulation State of Underground Cable Line

作　　者：崔楠楠 

机构地区：[1]河南能源化工集团永煤公司新桥煤矿,河南永城476600

出　　处：《江西煤炭科技》2016年第4期67-68,共2页Jiangxi Coal Science & Technology

摘　　要：本文从电缆发生绝缘老化引起的电量变化分析,给出了一种通过测量接地线电流的矿井电缆绝缘状态监视法,在分离各条馈线的接地线电流有功、无功基础上,将快速傅里叶变换和小波分析理论应用到有功、无功的分离中,MATLAB软件仿真模拟了常用的35 k V拓扑结构,在不同的绝缘参数变化中,给出接地线电流的规律曲线。By analysis of the electricity changes caused by cable insulation aging,the author proposes a method of monitoring insulation state of mine cable lines by measuring the grounding current, in which fast Fourier transform and wavelet analysis axe applied to separating the active and reactive components of grounding current and grounding current curves are obtained from the changes of different insulation parameters according to the 35 kV topological structure simulation with MATLAB software.

关 键 词：接地线 小波分析 有功分量 无功分量 快速傅里叶 

分 类 号：TD61[矿业工程—矿山机电]