兰华,李成哲,王韵然,张静宜,杨建彪.高压直流输电线路行波保护的发展与展望[J].电测与仪表,2012,49(6):1-4,14. LAN Hua , LI Cheng-zhe , WANG Yun-ran , ZHANG Jing-yi , YANG Jian-biao.Development and Prospects of HVDC Transmission Line Traveling Wave Protection[J].Electrical Measurement & Instrumentation,2012,49(6):1-4,14.
高压直流输电线路行波保护的发展与展望
Development and Prospects of HVDC Transmission Line Traveling Wave Protection
Compared to AC transmission system,HVDC transmission system has been relatively rapid development and application in the world and within our country with its unique advantages.However,due to with a large number of the system into operation and the rapid development,many problems need to be solved in practical engineering applications are also highlighted.Since HVDC transmission line is longer,it increases the probability of line failure,thereby reducing the power grid safety and reliability.Therefore,to improve the safety and reliability of operation of HVDC system has very important significance for security and stability of the entire grid.This paper compares the existing advantages and disadvantages of traveling wave protection methods and problems in the application of practical engineering,proposes a new method of traveling wave protection based on HHT,and provides a theoretical basis for further research of HVDC transmission line traveling wave protection.
