| 输电线路单端行波故障测距新算法 |
| |
| 引用本文： | 高洪雨,陈青,徐丙垠,王磊,宋卫平. 输电线路单端行波故障测距新算法[J]. 电力系统自动化, 2017, 41(5): 121-127 |
| |
| 作者姓名： | 高洪雨 陈青 徐丙垠 王磊 宋卫平 |
| |
| 作者单位： | 电网智能化调度与控制教育部重点实验室(山东大学), 山东省济南市 250061; 国网技术学院, 山东省济南市 250002,电网智能化调度与控制教育部重点实验室(山东大学), 山东省济南市 250061,山东理工大学电气工程学院, 山东省淄博市 255049,国网技术学院, 山东省济南市 250002,国网泰安供电公司, 山东省泰安市 271000 |
| |
| 基金项目： | 国家自然科学基金资助项目(51407105)；已申请国家发明专利(申请号201610209799.4) |
| |
| 摘 要： | 输电线路发生故障后,行波从故障点出发向不同方向行进,基于单端行波测距原理,故障点反射波以及其他折射反射行波到达检测母线的各个行波波头极性组合,反映了线路的不同故障区段,可以直接判断出故障点所属区段。文中对随机故障发生的4个区段,利用各类行波到达检测母线的时间,分别推导了不受行波速度影响的故障测距算法。现场应用验证了该算法的有效性。
|
| 关 键 词： | 输电线路；行波测距；行波波头；连续小波变换；模极大值 |
| 收稿时间： | 2016-04-17 |
| 修稿时间： | 2017-01-20 |
Fault Location Algorithm of Single-ended Traveling Wave for Transmission Lines |
| |
| GAO Hongyu,CHEN Qing,XU Bingyin,WANG Lei and SONG Weiping. Fault Location Algorithm of Single-ended Traveling Wave for Transmission Lines[J]. Automation of Electric Power Systems, 2017, 41(5): 121-127 |
| |
| Authors: | GAO Hongyu CHEN Qing XU Bingyin WANG Lei SONG Weiping |
| |
| Affiliation: | Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education (Shandong University), Jinan 250061, China; State Grid of China Technology College, Jinan 250002, China,Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education (Shandong University), Jinan 250061, China,Smart Grid Research Center, Shandong University of Technology, Zibo 255049, China,State Grid of China Technology College, Jinan 250002, China and State Grid Taian Power Supply Company, Taian 271000, China |
| |
| Abstract: | When faults occur in a transmission line, traveling waves generated from the short circuit should travel to bus-bars on both sides. Based on the single-ended traveling wave fault location principle, the wave polarity combining the first and subsequent arrival instants of the traveling waves can be measured at the detecting bus-bar terminal to enable direct determination of the fault sections. A fault location method for power transmission systems depending on the arriving time of the traveling waves is presented. A novel algorithm free from the influence of the speed of traveling waves is derived respectively, the availability of which is shown by examples. |
| |
| Keywords: | transmission line traveling wave fault location traveling wave surge continuous wavelet transformation modulus maxima |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《电力系统自动化》浏览原始摘要信息 |
|
点击此处可从《电力系统自动化》下载全文 |
|
