CAJ | 학술논문

行波测距法具有测距精度高、定位速度快的特点，目前主要应用在高压输电线路中。首先比较全面地讨论了行波测距算法及研究现状，根据行波测距算法的原理不同，将其分为基于单条输电线路的单端法、多端法和基于广域行波信息的网络测距法，重点对单端法中的反射波识别、双端法中的GPS和IEEE1588对时、广域网络测距法中的IEC61850标准等问题进行了探讨。然后回顾了行波的获取、波头的检测，波速对测距的影响及消除行波波速的测距算法等关键问题的最新研究进展。在此基础上总结了行波法测距今后急需解决的关键问题。相关研究结果表明，行波故障测距在电力系统中有广泛的应用前景，是今后输电线路故障定位领域的重要发展方向。
행파측거법구유측거정도고、정위속도쾌적특점，목전주요응용재고압수전선로중。수선비교전면지토론료행파측거산법급연구현상，근거행파측거산법적원리불동，장기분위기우단조수전선로적단단법、다단법화기우엄역행파신식적망락측거법，중점대단단법중적반사파식별、쌍단법중적GPS화IEEE1588대시、엄역망락측거법중적IEC61850표준등문제진행료탐토。연후회고료행파적획취、파두적검측，파속대측거적영향급소제행파파속적측거산법등관건문제적최신연구진전。재차기출상총결료행파법측거금후급수해결적관건문제。상관연구결과표명，행파고장측거재전력계통중유엄범적응용전경，시금후수전선로고장정위영역적중요발전방향。
Traveling wave fault location has the characteristics of high precision and fast speed position, which is mainly used in high voltage transmission line fault location. Firstly, this paper discusses the development and general situation of the research in this field. According to the different theories of the fault location, it can be generally divided into two parts, one is the single-terminal method or the multi-terminal method in a single transmission line, and the other is the wide-area fault location based on the network. Secondly, it focuses on the problems of reflection wave identification of the single-ended method, the clock synchronization technology based on GPS and IEEE1588 of the double-terminal method, and the wide-area fault location based on IEC61850. Then the latest research progress on the key issues of traveling wave acquisition, wave head detection, influence of wave velocity on the range, and the velocity elimination of traveling wave fault location algorithm are reviewed. Moreover, the future key issues to be solved urgently are also pointed out. It is shown that the traveling wave fault location has good application prospect in power system and will be the important development direction in the field of transmission line fault location.