广东电力2018，Vol.31Issue(12)：93-98,6.DOI:10.3969/j.issn.1007-290X.2018.012.013
基于阻抗评估电缆缓冲层间隙状况的实验与分析
Experiment and Analysis of Evaluating Buffer Layer Gap Condition of Cable Based on Impedance
摘要
Abstract
In order to study correlation between buffer layer gap condition of the high voltage cable and impedance of the buffer layer, the paper respectively builds the buffer layer gap model of high voltage cable and the distributed circuit model of the cable from the outer shield layer end to the aluminum sheath end.On the Simulink platform, it analyzes variation law s and reasons for impedance of the buffer layer under different gap conditions.It designs and establishes an experimental platform for impedance of the buffer layer and makes analysis on six target cables w ith different gap conditions.The results indicate that the impedance curve of the buffer layer of the high-class and closely contacted cable is inw ards concave smooth parabola, and as the port voltage is 10 V, impedance value is less than 150Ω.While the impedance curve of the buffer layer of the poor and loose cable has no fixed law s, and as the port voltage is 10 V, impedance value is greater than 200Ω.The experimental results could provide references for cable quality evaluation and safe operation.关键词
高压电缆/缓冲层/Simulink/分布式电路/缓冲层间隙/阻抗/电缆质量Key words
high voltage cable/buffer layer/Simulink/distributed circuit/buffer gap/impedance/cable quality分类
信息技术与安全科学引用本文复制引用
杨帆,朱宁西,刘晓东,刘刚..基于阻抗评估电缆缓冲层间隙状况的实验与分析[J].广东电力,2018,31(12):93-98,6.基金项目
国家高技术研究发展计划 (863计划) 项目 (2015AA050201) （863计划）
