浙江电力2023，Vol.42Issue(12)：12-19,8.DOI:10.19585/j.zjdl.202312002
基于FDTD建模的高压电缆局部放电检测方法
A partial discharge detection method for high-voltage cables based on FDTD modeling
摘要
Abstract
The partial discharge(PD)of high-voltage cables and the accessories directly affects the insulation per-formance of power cables.Therefore,a PD detection method for high-voltage cables based on finite-difference time-domain(FDTD)modeling is proposed.First,the FDTD method and the theory of transfer function are introduced into the cable PD detection.Besides,the FDTD model of high-voltage cables is established,and the accuracy of the model is evaluated.Then,the original pulses used to excite PD events in the FDTD model of 11 kV XLPE(cross-linked polyethylene)cables are obtained,and the relevant steps of hybrid modeling for PD detection are elaborated.Finally,the finite element calculation results of the pulse injection test are analyzed to verify the effectiveness of the proposed method.The method,also applicable to the PD detection of EPR(ethylene propylene rubber)cables,paper-insulated cables,and other cables,helps to study the relationship between the PD signals and the excitation signals of PD sources.关键词
高压电缆/局部放电/高频电流互感器/传递函数/有限元计算Key words
high-voltage cable/PD/high-frequency current transformer/transfer function/finite element calculation引用本文复制引用
潘彪,周永涛,董秦龙,郑会,钱迪,叶子雍..基于FDTD建模的高压电缆局部放电检测方法[J].浙江电力,2023,42(12):12-19,8.基金项目
国家自然科学基金项目(61876097) （61876097）
