摘要
高压直流输电线路由于其线路长,发生故障概率较高。研究了高压直流线路故障行波传播特性,对波头畸变、波速变化特性进行详细分析,并在PSCAD/EMTDC仿真平台搭建了基于天广直流参数的直流输电系统模型,通过仿真试验验证了该模型的正确性。高压直流线路故障行波传播特性的研究分析为优化利用暂态行波的高压直流输电线路测距奠定了理论基础。
High⁃voltage direct current(HVDC)transmission line has a high probability of failure due to its long line.It searches the traveling wave propagation characteristics of HVDC fault lines,and analyzes the wave head distortion and wave velocity variation char⁃acteristicsin detail.The HVDC system model based on Tianguang DC parameters is built on PSCAD/EMTDC simulation platform and though simulated test to verify the correction of the analysis.The research and analysis of fault traveling wave propagation characteris⁃tics of HVDC lines lays a theoretical foundation for optimizing the location of HVDC transmission lines using transient traveling waves.
作者
宋益
张怿宁
尹立群
王振
SONG Yi;ZHANG Yining;YIN Liqun;WANG Zhen(Electric Power Research Institute of Guangxi Power Grid Co.,Ltd.,Nanning,Guangxi 530023,China;Ultra High Voltage Transmission Company Maintenance&Test Center of China Southern Power Grid Co.,Ltd.,Guangzhou,Guangdong 518052,China)
出处
《东北电力技术》
2022年第7期8-11,15,共5页
Northeast Electric Power Technology
关键词
高压直流
输电线路
行波
特性分析
HVDC
transmission line
traveling wave
characteristic analysis
