高压直流输电线路故障定位研究综述  

Survey of fault location research for HVDC transmission lines

作　　者：宋国兵[1] 蔡新雷[1] 高淑萍[1] 张健康[1] 李德坤[1] 索南加乐[1] 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049

出　　处：《电力系统保护与控制》2012年第5期133-137,147,共6页Power System Protection and Control

基　　金：国家自然科学基金项目(51177128;51037005)~~

摘　　要：综述了国内外开展的直流线路故障定位的研究背景和现状。首先分析了现有直流输电线路故障定位技术的不足,指出了目前工程应用中的直流输电线路故障定位装置只采用行波原理,存在原理单一、对采样率要求高、耐过渡电阻能力差等问题。借鉴交流输电线路故障定位原理的划分方法,对直流输电线路故障定位原理进行了归类研究。将直流输电线路故障定位方法分为行波法和故障分析法,并分别分析和研究了行波法和故障分析法的优缺点,指出故障分析法在直流输电线路故障定位中的广阔应用前景。最后给出了直流输电线路故障定位研究的几点建议与设想。The HVDC line fault location methods at home and abroad are surveyed in this paper. Firstly, the disadvantage of the existing fault location techniques of HVDC transmission line is analyzed, and it is point out that the engineering applications of fault location of HVDC transmission line are based on traveling wave principle at present. The fault location principle is relatively simple, requiring high sampling rate, and its tolerance ability of high resistance is not sufficient. Making use of the dividing method of fault location principle of AC transmission line, the fault location principle of HVDC transmission line is classified and studied. The HVDC transmission line fault location methods are divided into traveling wave method and fault analysis method. Furthermore, the advantages and disadvantages of each fault location principles of HVDC transmission line are reviewed respectively and it is pointed out that fault analysis method has broad application prospects. Finally, several important problems which need to be further studied are proposed.

关 键 词：直流输电线路 故障定位 行波法 故障分析法 

分 类 号：TM755[电气工程—电力系统及自动化]