基于波形群灵敏角特征的输电线路故障单端行波辨识与测距OA北大核心CSTPCD
Single-ended Traveling Wave Surge Identification and Fault Location for Transmission Lines Based on the Sensitive Angle Characteristic of Waveshape With Multiple Wavefronts
针对输电线路单端行波测距难以可靠、有效辨识第二个波头的不足,该文提出基于波形群灵敏角检测的单端行波辨识与测距方法.首先,对线路故障波过程的解析和规律分析,发现波头局部波形呈现灵敏角和非轴对称性的特点.进而提出利用 Radon 变换变角度投影检测最灵敏角并判别最灵敏角两侧非轴对称特性,实现单端故障初始行波及多次同极性行波群的可靠辨识.最后,基于多次同极性行波到达时差构造多测距算式,输出最合理测距结果.所提方法将时域波头辨识转化为波形图像空间域最灵敏…查看全部>>
It is difficult to identify the second wavefront reliably and effectively during the single-ended traveling waves fault locating process for transmission lines.In order to solve these problems,a single-ended traveling wave identification and fault location approach based on the sensitive angle characteristic of waveshape is proposed in this paper.First,the regularity of fault induced traveling waves process on transmission lines is analyzed.The sensitive ang…查看全部>>
张广斌;王开福;束洪春;司大军
昆明理工大学电力工程学院,云南省 昆明市 650500昆明理工大学电力工程学院,云南省 昆明市 650500昆明理工大学电力工程学院,云南省 昆明市 650500云南电网有限责任公司电网规划建设研究中心,云南省 昆明市 650011
动力与电气工程
故障测距Radon变换灵敏角波头检测行波输电线路轴对称性
fault locationRadon transformsensitive anglewavefront detectiontraveling wavestransmission lineaxial symmetry
《中国电机工程学报》 2024 (10)
3789-3803,中插4,16
国家自然科学基金项目(51907085)云南省重大科技专项计划项目(202002AF080001).Project Supported by National Natural Science Foundation of China(51907085)Major Science and Technology Special Projects of Yunnan Province(202002AF080001).
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