摘要
脐带缆是水下生产系统的生命线,快速有效地定位故障点具有重要的经济意义。分析了脐带缆电缆故障电压行波特征,在此基础上提出一种故障测距方法。根据脐带缆电压行波线模零模分量在故障点发生折射和反射的数值关系,定义了波形特征量并以此判断第一个反射波的性质;基于TT变换标定故障行波到达时间;在此基础上提出一种基于故障电压行波相模分量特征及TT变换的脐带缆电缆故障单端测距方法。最后,以EMTP/ATP仿真结果验证了所提测距方法的准确性和有效性。
The umbilical cable is the lifeline of the underwater production system,and it is of great economic significance to locate the fault point quickly and efficiently.In this paper,the fault wave traveling wave characteristics of umbilical cable were analyzed.Based on this,a fault location method was proposed.According to the numerical relationship between the umbilical cable voltage traveling wave line mode and the zero mode component after the deflection point occurs at the fault point,the waveform feature quantity was defined to judge the nature of the first reflected wave;the fault traveling wave arrival time was calibrated based on the TT transform.On this basis,a single terminal fault location method of the umbilical cable was proposed based on fault voltage traveling wave phase mode component characteristics and TT transformation.Finally,the EMTP/ATP simulation results verified the accuracy and effectiveness of the proposed ranging method.
作者
刘金凯
梁永亮
郭宏
闫嘉钰
郭江艳
薛永端
徐丙垠
LIU Jinkai;LIANG Yongliang;GUO Hong;YAN Jiayu;GUO Jiangyan;XUE Yongduan;XU Bingyin(College of Information and Control Engineering,China University of Petroleum(East China),Qingdao 266580,China;School of Electrical Engineering,Shandong University,Jinan 250061,China;CNOOC Research Institute,Beijing 100028,China;Kehui Electric Co.,Ltd.,Zibo 255087,China)
出处
《供用电》
2021年第2期19-25,共7页
Distribution & Utilization
基金
国家自然科学基金项目(51477184)。
关键词
脐带缆
行波测距
单端法
相模分量特征
TT变换
umbilical cord cable
traveling wave fault location
single-ended fault location
feature of modular component
TT transform
