摘要
为定位传输线网络中的故障,提出了一种基于时间反转过程的替代方法。针对无损同质单相传输线进行了数学建模,将其适用性扩展到有损异质传输线网络,建立了故障位置计算的电压参数与频率之间的关系。仿真分析了一相异质线路和一个异质Y形网络的两种故障情况。结果表明,所提方法只需要一个观测点,通过计算线路上电压参数的变化就可以实现高精度的故障定位,优点在于计算效率高,修改后的反向传播模型避免了多次仿真。
An alternative method based on time reversal process was proposed to locate faults in transmission line networks.Mathematical modeling was conducted for lossless homogeneous single-phase transmission lines,and its applicability was extended to lossy heterogeneous transmission line networks.The relationship between voltage parameters and frequency for fault location calculation was established.Two types of fault situations for a heterogeneous line and a heterogeneous Y-shaped network were simulated and analyzed.The results show that the proposed method only requires one observation point and can achieve high-precision fault localization by calculating the changes in voltage parameters on the line.Its advantage is high computational efficiency,and the modified backpropagation model avoids multiple simulations.
作者
徐涛
雷海
王杨杨
Xu Tao;Lei Hai;Wang Yangyang(State Grid Shizuishan Power Supply Co.,Ltd.,Shizuishan Ningxia 753001,China;NARI Nanjing Control System Co.,Ltd.,Nanjing Jiangsu 210031,China)
出处
《电气自动化》
2025年第1期23-25,共3页
Electrical Automation
基金
国家自然科学基金项目(51577086)。
关键词
变化介质
时间反转
故障定位
故障瞬变
传输线路
电磁传播
changing medium
time reversal
fault localization
fault transients
transmission lines
electromagnetic propagation
作者简介
徐涛(1982-),男,江苏徐州人,高级工程师,主要研究方向:配电网工程管理、运维检修、电力安全、应急管理和可靠性管理等;雷海(1985-),男,安徽桐城人,工程师,主要研究方向:配电自动化、配电网工程管理和运维检修等;王杨杨(1991-),女,江苏南京人,工程师,主要研究方向:电气及其自动化、电力电子与电力传动等。
