基于MUSIC算法的10 kV配电电缆局部缺陷定位  

MUSIC Algorithm-based Localization of Local Defects of 10 kV Distribution Cables

作　　者：姚景泽 YAO Jingze(State Grid Nanzhang County Power Supply Company,Xiangyang 441500,China)

机构地区：[1]国网南漳县供电公司,湖北襄阳441500

出　　处：《电工技术》2024年第21期120-123,共4页Electric Engineering

摘　　要：提出了一种基于多重信号分类(MUSIC)算法的10 kV配电电缆局部缺陷定位方法。首先介绍了含缺陷的配电电缆分布式参数模型;其次分析传统频域反射定位算法存在的不足,并介绍了基于MUSIC算法的电缆反射系数实部周期分量求解方法;最后对比分析了所提方法与传统方法的定位结果,表明MUSIC算法具有定位分辨率高、对频率上限依赖小的优势,可为准确定位配电电缆局部缺陷提供重要理论支撑。This essay proposes a local defect localization method for 10 kV distribution cables based on the MUSIC algorithm.First the defective distribution cable model is outlined,then the shortcomings of conventional localization algorithms are clarified and the MUSIC algorithm is adumbrated.Finally a comparative analysis is conducted between the localization results of the proposed method and the conventional methods.The results show that compared with conventional methods,the MUSIC algorithm has the advantages of high positioning resolution and less dependence on upper limit frequency,providing a potential support for accurately localizing local defects for distribution cables.

关 键 词：配电电缆 局部缺陷 故障定位 MUSIC算法 

分 类 号：TM75[电气工程—电力系统及自动化]