配电网电缆故障检测与诊断技术研究

Research on Fault Detection and Diagnosis Technology of Distribution Network Cable

配电网电缆故障频繁发生,严重影响配电网的正常运行,因此研究配电网电缆故障检测与诊断技术具有重要意义。首先,阐述电缆故障类型与特征,以及故障检测与诊断的理论基础。其次,系统综述了配电网电缆故障检测技术,包括传统时间域及频率域方法和现代信号分析方法,并展望未来发展方向。此外,还详细探讨了配电网电缆故障诊断技术,既介绍了传统故障定位方法,也综述了现代监测技术与未来发展趋势。最后,提出配电网电缆故障检测与诊断技术在智能配电网建设、多源数据融合、故障预测与预警等方面的应用前景。

The frequent occurrence of distribution network cable faults seriously affects the normal operation of distribution network,so it is of great significance to study the detection and diagnosis technology of distribution network cable faults.This paper first describes the types and characteristics of cable faults,and the theoretical basis of fault detection and diagnosis.Secondly,the fault detection technology of distribution network cable is systematically reviewed,including traditional time domain and frequency domain methods and modern signal analysis methods,and the future development direction is forecasted.In addition,the paper discusses the fault diagnosis technology of distribution network cable in detail,introduces not only the traditional fault location method,but also summarizes the modern monitoring technology and future development trend.Finally,the paper presents the application prospect of cable fault detection and diagnosis technology in intelligent distribution network construction,multi-source data fusion,fault prediction and early warning.