电容型验电器用接地线全过程运行状态识别  

Identification of the Whole Process Operating Status of Grounding Wire for Capacitive Voltage Tester

作　　者：吴名鑫 凌博毅 WU Ming-xin;LING Bo-yi(Yunfu Power Supply Bureau of Guangdong Power Grid Co.,Yunfu 527199,China)

机构地区：[1]广东电网云浮郁南供电局,广东云浮527199

出　　处：《电力电子技术》2025年第4期27-31,共5页Power Electronics

摘　　要：现有接地线运行状态识别方法多依赖人工,存在识别精度不足、时效不佳问题,为此提出一种电容型验电器用接地线全过程运行状态的智能识别方法。将采集的电流信号分解,去噪的同时提取出不同频段内的特征信息。利用改进排列熵算法的特征提取方法,对分解后的信号定性与定量。基于D-S理论构建多元识别信息融合框架,实现对接地线运行状态的精确识别。实验分析表明,该方法既能精确地识别判断接地线的运行状态,又能确保实时的响应速度。The existing methods for identifying the operating status of grounding wires rely heavily on manual labor,resulting in insufficient recognition accuracy and poor timeliness.Therefore,an intelligent recognition method for the entire operating status of grounding wires for capacitive voltage testers is proposed.Decompose the collected current signal,denoise it,and extract feature information in different frequency bands.Using an improved permutation entropy algorithm for feature extraction,qualitatively and quantitatively analyze the decomposed signal.Constructing a multi-dimensional identification information fusion framework based on D-S theory to achieve accurate identification of the operating status of grounding wires.Experimental analysis shows that this method can accurately identify and judge the operating status of the grounding wire,while ensuring real-time response speed.

关 键 词：电容型验电器 接地线 运行状态 智能识别 

分 类 号：TM933.23[电气工程—电力电子与电力传动]