[1]夏君山,夏向阳,赵 威,等.基于差值电流分析的高压电缆在线监测研究[J].高压电器,2019,55(07):165-172.[doi:10.13296/j.1001-1609.hva.2019.07.024]
 XIA Junshan,XIA Xiangyang,ZHAO Wei,et al.Research on Online Monitoring for HV Cable Based on Differential Current Analysis[J].High Voltage Apparatus,2019,55(07):165-172.[doi:10.13296/j.1001-1609.hva.2019.07.024]





Research on Online Monitoring for HV Cable Based on Differential Current Analysis
夏君山1 夏向阳2 赵 威2 李明德3 黄 海3 陈善求1
(1. 金杯电工股份有限公司, 长沙 410007; 2. 长沙理工大学电气与信息工程学院, 长沙 410114; 3. 衡阳市产商品质量 监督检验所, 湖南 衡阳 421000)
XIA Junshan1 XIA Xiangyang1 ZHAO Wei2 LI Mingde3 HUANG Hai3 CHEN Shanqiu1
(1. Goldcup Electric Apparatus Co.,Ltd., Changsha 410007, China; 2. College of Electrical and Information Engineering, Changsha University of Science & Technology, Changsha 410114, China; 3. Hengyang City Commodity Quality Supervision and Inspection, Hunan Hengyang 421000, China)
高压电缆 接地线电流 比值分析 不平衡度 在线监测
HV cable ground line current ratio analysis unbalance factor online monitoring
Since single-parameter monitoring of power cable sheath fault cannot be evaluated fault accurately and multi-parameter fault monitoring is not enough for data fusion analysis, an on-line cable faults method based on differential current analysis is proposed to precautions for early failures of high-voltage cable lines. This method measures grounding current at the direct grounding box and the cross-connected grounding box and calculate the fault and normal conditions of the grounding wire three-phase current for ratio analysis and unbalance to identify the fault. The fault criteria and fault database are established by fuzzy control based on the change of character parameter such as eccentricity, and inclination angle of the locus. The faults such as grounding box water inlet, coaxial cable broken, joint open circuit, joint short circuit in different locations are simulated. A set of cable insulation on-line monitoring system is designed and simulated at laboratory which includes the front-end signal acquisition unit, micro-controller master unit, as well as background data analysis and processing unit. The actual monitoring results show that the cable online monitoring system based on this method can truly reflect the insulation characteristics of the cable.


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夏君山(1967—),男,硕士,教授级高工,主要从事电缆设计与制造工作。 夏向阳(1968—),男,博士,教授,主要研究方向为电力电子技术在电力系统中的应用和电力电缆故障诊断。 赵 威(1995—),男,硕士生,研究方向为电力系统运行与控制(通讯作者)。收稿日期:2018-11-18; 修回日期:2019-01-10 基金项目:国家自然科学基金资助项目(51307009);湖南省自然科学衡阳联合基金(2018JJ4025)。 Project Supported by National Natural Science Foundation of China(51307009),Hunan Natural Science Hengyang Joint Fund(2018JJ4025).
更新日期/Last Update: 2019-07-15