Electromagnetic Wave Propagation Characteristics Analysis in Partial Discharge of Cable Joint and Sensor Optimation Design of Sensor

doi:10.3969/j.issn.1008-0198.2024.05.013

Abstract

Abstract: In response to the low detection sensitivity of high-frequency current method for detecting partial discharge faults in cable intermediate joints, based on the high sensitivity of capacitive coupling method, finite element method is used to simulate the electromagnetic wave propagation characteristics of partial discharge in cable intermediate joints. The variation law of electric field intensity in three directions at dif‍ferent monitoring points is obtained. At the same time, the attenuation characteristics and spectral characteristics of partial discharge electromagnetic waves are analyzed, and the capacitance sensor is optimized for design, providing reference for the application of capacitance sensors in monitoring partial discharge in cable intermediate joints.

Key words: cable joint, electromagnetic wave, finite element, capacitive sensor, spectral characteristic, optimal design

CLC Number:

TM247

ZHOU Xuehuan, ZENG Ping, LIU Zhigang, CHEN Qian, CHENG An, ZHANG Zequan, CAI Xinjing. Electromagnetic Wave Propagation Characteristics Analysis in Partial Discharge of Cable Joint and Sensor Optimation Design of Sensor[J]. Hunan Electric Power, 2024, 44(5): 81-86.

References

[1] EDWARD W‍,ROGIER J.Condition based maintenance of transmission power cables‍[J].IEEE Transactions on Power Delivery,2022,37(3）:1588-1597.
[2] POKRYVAILO.Behavior of HV cable at short circuit‍[J]. IEEE Transactions on Dielectrics and Electrical Insulation,2015,22(4）:1763‍‍-1768.
[3] 周远翔, 赵健康, 刘睿, 等.高压/超高压电力电缆关键技术分析及展望[J].高电压技术,2014,40(9）:2593-2612.
[4] WU R N,CHANG C K.The use of partial discharges as an online monitoring system for underground cable joints[J].IEEE Transactions on Power Delivery,2011,26(3）:1585-1591.
[5] CHANG C K,LAI C S,WU R N.Decision tree rules for insulation condition assessment of pre-molded power cable joints with artificial defects[J].IEEE Transactions on Dielectrics and Electrical Insulation,2019,26(5）:1636‍-1644.
[6] CHANG C K,BHARATH K B.Assessment of the insulation status aging in power cable joints using support vector machine[J].IEEE Transactions on Dielectrics and Electrical Insulation,2021,28(6）:2170-2177.
[7] BANG S S,SHIN Y J.Classification of faults in multicore cable via time frequency domain reflectometry[J].IEEE Transac‍tions on Industrial Electronics,2020,67(5）:4163-4171.
[8] 李蓉, 周凯, 饶显杰, 等.基于输入阻抗谱的电缆故障类型识别及定位[J].高电压技术,2021,47(9）:3236-3245.
[9] MA G M,LI C R,CHEN X W,et al.Numerical sensor design for partial discharge detection on power cable joint[J].IEEE Transactions on Dielectrics and Electrical Insulation,2015,22(4）:2311-2319.
[10] VAKILIAN M,BLACKBURN T R,JAMES R E,et al.Semicon‍ducting layer as an attractive PD detection sensor of XLPE cables‍[J].IEEE Transactions on Dielectrics and Elec‍trical Insulation,2006,13(4）:885-891.
[11] LI X,LI C R,WANG W,et al.Partial discharge measurement in XLPE cable joint by using VHF sensor[C]//Proceedings of the 2004 IEEE International Conference on Solid Dielectrics.Toulouse,France.2004.
[12] JANNUS M N,NAKASHIMA T,SAKODA T,et al.Location of partial discharge at joint section of XLPE cable using an acoustic emission technique‍[C]//2010 Annual Report Con‍fer‍ence on Electrical Insulation and Dielectric Phenomena.West Lafayette,USA.2010.
[13] LI G W,LIANG N B,DENG J Y,et al.A high sensitivity high frequency current sensor design‍[C]//2022 IEEE 4th In‍ternational Conference on Power,Intelligent Computing and Systems.Shenyang,China.2022.
[14] 邓镓屹, 王星华, 聂一雄.用于电缆接头在线监测的高频电流传感器设计[J].电力电子技术,2023,57(5):33-36.
[15] 冯慈璋, 马西奎.工程电磁场导论[M].北京:高等教育出版社,2010.
[16] 赵健康. 高压电缆及其附件[M].北京:中国电力出版社,2020.
[17] 陈孝信. 局部放电信号在高压XLPE电缆中的传播特性及能量分布[D].上海:上海交通大学,2017.
[18] 孙目珍. 电介质物理基础[M].广州:华南理工大学出版社,2000.