基于历史存量行波数据的雷击故障辨识方法  

Lightning Fault Recognition Based on the Historical Memory of Travelling Wave Data

作　　者：马仪 束洪春[2] 申元 黄然 宋喆 沐润志[2] 白冰[2] 余多[2] MAYi SHU Hongchun SHENYuan HUANG Ran SONG Zhe MU Runzhi BAI Bing YU Duo(Electric Power Research Institute,Yunnan Power Grid Co. Ltd. , Kunming 650217, China Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500 Kunming Engineering Co. Ltd. , Kunming 650000, China)

机构地区：[1]云南电网有限责任公司电力科学研究院,云南昆明650217 [2]昆明理工大学电力工程学院,云南昆明650500 [3]昆明勘测设计研究院有限公司,云南昆明650000

出　　处：《昆明理工大学学报（自然科学版）》2017年第5期46-54,共9页Journal of Kunming University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(51667010);云南电网公司科技项目(云电研0301GY16)

摘　　要：前电网在结合故障数据和雷电定位系统对雷击故障进行识别时仅依靠时间和空间位置信息.考虑到雷击故障存在区域固定、复发性高的特点,提出利用将历史行波数据中已经确认为雷击故障的波形作为历史案例库,通过比较历史行波数据与待测数据之间的波形差异度,将历史行波数据作为雷击故障判别依据之一.利用地理信息系统将故障距离转化为以杆塔形式以实现行波故障测距结果与雷电定位系统记录之间的空间匹配,最终以波形差异度、得到各条历史故障的特征点Ω(Δt,Δx,P),根据雷击故障和非雷击性故障特征点的分布规律,判断故障是否为雷击故障.经实例验证表明所提出的方法准确有效.Describes the development and This paper proposes method of selecting a application status of traveling wave devices and lightning fault recognition domain combined with lightning location system. traveling wave devices and lightning location system＇ s problems in lightning fault recognition. Firstly according to the lightning fault history data through traveling wave distance measuring device and lightning location system history data, calculated for N - 1 wave- form difference degree of each lightning fault history data, traveling wave results expressed in the form of the tower, the first arrival time of the first wave of failures and extract the corresponding historical data time information and nea- rest lightning tower information in lightning location system, and ultimately get each of the historical failure eigenval- ues point Ω（△t, △x ,P）. Then put them in △t,△x,P for the three - dimensional coordinate axes. According to the distribution feature of lightning fault and non - fault feature points, obtain recognition domain Ф in order to determine whether the fault was lightning fault. Examples show that the proposed method is correct and effective.

关 键 词：行波测距 雷电定位系统 雷击故障 历史数据 

分 类 号：TM863[电气工程—高电压与绝缘技术]