Electromagnetic Transient Analysis of 500 kV XLPE Submarine Cable Interconnection Project from Zhenhai to Zhoushan

2019 4th Asia Conference on Power and Electrical Engineering

能源学;电工学

Xiao, Shijie^1 ; Ding, Xiaoyu^2 ; Wang, Xiaotong^3 ; Ning, Kanghong^2 ; Chen, Hongwei^2 ; Peng, Mingwei^2 ; Wang, Xiaojian^1

State Grid Zhejiang Electric Power Company, Ltd., Hangzhou

310007, China^1

China Energy Engineering Group Zhejiang Electric Power Design Institute Co., Ltd., Hangzhou

310012, China^2

China Electric Power Research Institute, Haidian District, Beijing

100192, China^3

关键词: 500kV;    Electro-magnetic transient;    Power frequency;    Power frequency overvoltage;    Secondary arc current;    Switching surge;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/486/1/012126/pdf
DOI  :  10.1088/1757-899X/486/1/012126

来源: IOP

【 摘 要 】

In Zhenhai-Zhoushan transmission project, 500kV XLPE submarine cable lines are used for the first time in the world. Using electromagnetic transient simulation program(EMTP), electromagnetic transient problems in this project are investigated including electrical parameter of submarine cable lines, power frequency overvoltages, secondary-arc currents and recovery voltages during the single-phase reclosing, power frequency resonance overvoltages, induced voltages and induced currents, switching surges and so on. On the basis, the recommended configuration scheme of HV shunt reactors and neutral reactors is proposed. In addition, it is suggested to install closing resistors of 400ohm on both sides of line breakers in order to restrict switching overvoltages and ensure safe operation of submarine cable lines.