基于雷电记录与行波数据的雷击故障测距结果优化方法

发布时间：2018-03-06 19:58

本文选题：单端行波测距　切入点：波头标定　出处：《电力系统自动化》2016年07期 　论文类型：期刊论文

【摘要】：针对输电线路故障概率最高的雷击故障存在实测数据故障点反射波难以标定等困难,提出基于行波测距数据和雷电定位系统记录等多平台来源信息的雷击故障测距结果优化方法。以实测数据中疑似故障点反射波对应的疑似故障点作为基准,根据最近邻地闪记录与疑似故障点之间的空间距离和时差排除雷电定位系统中非故障雷击地闪记录和实测行波数据中非有效行波的干扰,初步确定故障点位置。在此基础上,根据最近邻地闪记录在空间位置上的趋向性,以线路走廊走势作为基准,计算最近邻地闪记录与线路走廊各基杆塔之间的空间趋势接近度,以接近度作为修正系数对行波测距结果进行优化。最后,以故障实测数据进行验证表明该方法可行、有效。
[Abstract]:For the lightning strike fault with the highest fault probability of transmission line, it is difficult to calibrate the reflected wave at the fault point of the measured data. A method for optimizing lightning fault location results based on traveling wave location data and recording of lightning location system is proposed. The suspected fault points corresponding to the reflection waves of suspected fault points in the measured data are taken as the benchmark. According to the spatial distance and time difference between the nearest neighbor flash record and the suspected fault point, the interference of non-fault ground flicker recording and measured traveling wave data is eliminated, and the location of the fault point is preliminarily determined. Based on the spatial tendency of the nearest neighbor flash record and the trend of the line corridor, the spatial trend proximity between the nearest neighbor lightning record and the base tower of the line corridor is calculated. The approaching degree is used as the correction coefficient to optimize the traveling wave location results. Finally, the fault measurement data show that the method is feasible and effective.
【作者单位】：昆明理工大学电力工程学院;云南电网有限责任公司电力科学研究院;哈尔滨工业大学电气工程及自动化学院;
【基金】：国家自然科学基金资助项目(U1202233,51267009) 云南省重点项目(2011FA032) 高等学校博士学科点专项科研基金资助项目(20105314110001)~~
【分类号】：TM863

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