电力系统保护与控制Issue(21)：20-25,6.
高压直流输电线路故障行波传播特性及其对行波保护的影响
Propagation characteristic of fault traveling wave on HVDC line and its influence on HVDC line traveling wave protection
摘要
Abstract
The lossless transmission line model is widely used in research of propagation characteristic of fault traveling wave on HVDC line, but traveling wave dispersion is not considered in the model. And the influence of DC line terminal devices is not considered in research of traveling wave protection (TWP). The causation, the characteristic and the influencing factors of fault traveling wave dispersion are analyzed in detail. Influence of DC line terminal devices on the reflection of different frequency component of fault traveling wave is also analyzed. And then, influence of the forenamed two factors on TWP is studied. It is shown that dispersion mainly affects the earth mode component of fault traveling wave. Both the forenamed two factors also have effect on the amplitude of fault traveling wave, which affects the criterion of voltage change of TWP;the fault traveling wave gradient, which affects the criterion of voltage change rate of TWP, is affected limitedly by dispersion. And it can be confirmed by the aerial mode component of fault traveling wave.关键词
传播特性/故障行波色散/线模分量/地模分量/行波保护Key words
propagation characteristic/fault traveling wave dispersion/aerial mode component/earth mode component/traveling wave protection分类
信息技术与安全科学引用本文复制引用
韩昆仑,蔡泽祥,贺智,徐敏..高压直流输电线路故障行波传播特性及其对行波保护的影响[J].电力系统保护与控制,2013,(21):20-25,6.基金项目
国家自然科学基金项目（51077055）；高等学校博士学科点专项科研基金资助项目 （）
This work is supported by National Natural Science Foundation of China (No.51077055) and Specialized Research Fund for the Doctoral Program of Higher Education (No.20100172110031) （No.51077055）
