交流故障引发直流换相失败响应的仿真研究

作者：李世龙; 陈卫; 李晓华

来源：中国,黑龙江省,绥化市,北林区.

• 直流输电系统
• 换相失败现象
• 故障分析
• 安全运行

　　Four types of AC faults will be distinguished in ten types in this paper.In each fault condition,the simulation will be made using the PSCAD.Using the model given by CIGRE,select a number of points in a commutation cycle evenly and then applied different types of faults in each of these points.Record the value of the resistance and the voltage when commutation failure happens.Then make a research on the character about the resistance-time line.Explain the reasons for its symmetry、periodic and feature point.At last research which point in a circle the commutation most likely to occur.This research has an active effect on the operation and protection of the HVDC.

• 单位
  华南理工大学