中国电机工程学报Issue(19)：165-173,9.
基于Hough变换直线检测的行波波头标定
Surge Identification for Travelling Wave Based on Straight Lines Detection Via Hough Transform
摘要
Abstract
Reliable detection and identification of the second surge is the key factor of single-ended travelling fault location. The wavefront of initial current travelling wave represents line feature through analyzing massive observed field data. Multiple-line connection configuration determines the polarity differ between reflection from fault point and reflection of remote busbar, and also determines the low amplitude of disturbance caused by reflection from end of the healthy neighbouring lines, which provides convenience for correctly capturing reflection from fault point. From the perspective of digital image processing, displaying observed travelling wave data into digital waveform image, demarcation method for travelling wave based on line detection by Hough transform is proposed, which can eliminate disturbance caused by reflection of healthy neighbouring lines and remote busbar through the amplitude and slope of surges. The confidence of wavefront identification can be determined through the interval of series fault reflected surges and the consistency of the initial wavefront slopes in different scope, which avoids mistakes caused by irrational experienced scope. The proposed method is confirmed correct and effective by massive measured field travelling wave data.关键词
波头标定/近端故障/Hough变换/直线检测/多尺度视窗/行波测距Key words
surge identification/close in fault/Hough transform/straight lines detection/multi-scaled window/travelling wave based fault location分类
信息技术与安全科学引用本文复制引用
张广斌,束洪春,于继来..基于Hough变换直线检测的行波波头标定[J].中国电机工程学报,2013,(19):165-173,9.基金项目
国家自然科学基金项目(50977039， U1202233，51267009)；云南省重点项目(2011FA032)；高校博士点科研基金项目(20105314110001)。Project Supported by National Natural Science Foundation of China (50977039，U1202233，51267009) （50977039， U1202233，51267009）
Scientific and Technological Projects in Yunnan Province (2011FA032) （2011FA032）
Special Scientific and Research Funds for Doctoral Speciality of Institution of Higher Learning(20105314110001) （20105314110001）
