A Single-Terminal Traveling Wave Fault Location Method for VSC-HVDC Transmission Lines Based on S-transform

被引：0
|
作者：
Xi, Chuanxin [1 ]
Chen, Qing [1 ]
Wang, Lei [1 ]
机构：
[1] Shandong Univ, Key Lab Power Syst Intelligent Dispatch & Control, Minist Educ, Jinan, Peoples R China
来源：
2016 IEEE PES ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC) | 2016年
关键词：
fault location; S-transform; single-terminal; traveling wave; VSC-HVDC;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A single-terminal traveling wave fault location method for VSC-HVDC transmission lines based on S-transform is proposed. S-transform is applied to analyze the amplitude variation of the line-mode fault traveling wave signal on each frequency component. The moments corresponding to the modulus maximums of the high frequency components are exactly the traveling wave arrival times. Combining with the propagation law of fault traveling wave in VSC-HVDC system, three wave heads can be identified, one is the wave head of the initial transient traveling wave, the other two are the wave heads of the first reflected traveling waves at the fault point and the opposite DC bus, respectively. The fault location can be implemented with the three wave heads, which can avoid the influence of wave velocity. The PSCAD simulation results show that the proposed method has high accuracy without being affected by transition resistance theoretically.
引用
收藏
页码：1008 / 1012
页数：5
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