摘要
为提升在复杂运行环境下对高压输电线路不对称故障的诊断精度与响应速度,设计一种基于5G的故障诊断方法。通过引入增强型小波变换实现行波特征提取,结合多测点时空联合标定与物理判据融合识别机制,构建端到端的智能诊断流程。实验结果表明,对于单相接地、两相短路及两相接地等典型故障,该方法的识别准确率均超过95.0%,平均定位误差控制在±1.00km,系统响应时间低于10ms,具备高通信可靠性与信号处理成功率。研究结果表明,5G可有效满足电力系统对快速、精准故障诊断的需求,为智能电网发展提供有力的技术保障。
In order to improve the diagnosis accuracy and response speed of asymmetric faults of high-voltage transmission lines in complex operating environment,a fault diagnosis method based on 5G is designed.By introducing enhanced wavelet transform to realize the feature extraction of traveling waves,and combining the joint calibration of multi-measuring points in time and space with the fusion identification mechanism of physical criteria,an end-to-end intelligent diagnosis process is constructed.The experimental results show that for typical faults such as single-phase grounding,two-phase short circuit and two-phase grounding,the recognition accuracy of this method is over 95.0%,the average positioning error is controlled within±1.00 km,and the system response time is less than 10 ms,which has high communication reliability and signal processing success rate.The research results show that 5G can effectively meet the demand of power system for fast and accurate fault diagnosis,and provide strong technical support for the development of smart grid.
作者
冯永周
FENG Yongzhou(Anhui Tianyuan Cable Co.,Ltd.,Anqing 246000,China)
出处
《通信电源技术》
2025年第14期212-214,共3页
Telecom Power Technology
关键词
5G
不对称故障
高压输电线路
5G
asymmetric fault
high-voltage transmission line
