基于VMD模态分量的高压断路器分合闸线圈电流特征值提取  

High⁃voltage circuit breaker′s opening and closing coil current feature value extraction based on VMD modal component

作　　者：范想 吐松江·卡日[1] 王德金 刘鹏伟 马小晶[1] FAN Xiang;TUSONGJIANG Kari;WANG Dejin;LIU Pengwei;MA Xiaojing(School of Electrical Engineering,Xinjiang University,Urumqi 800046,China;YGSOFT INC,Zhuhai 519085,China;Shanghai Nyten Electrical Technology Co.,Ltd.,Shanghai 201100,China)

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐800046 [2]远光软件股份有限公司,广东珠海519085 [3]上海念仲电气科技有限公司,上海201100

出　　处：《现代电子技术》2023年第20期107-112,共6页Modern Electronics Technique

基　　金：新疆维吾尔自治区自然科学基金面上项目(2022D01C35);国家自然科学基金项目(52067021);乌鲁木齐市“人才工程”重点培养对象项目(2019年)。

摘　　要：高压断路器分合闸线圈电流波形中包含着丰富的断路器操动机构和控制回路的状态信息,分析分合闸线圈电流的特性对断路器的状态监测、故障诊断具有重要意义。文中提出一种基于变分模态分解(VMD)模态分量的高压断路器分合闸线圈电流特征值提取方法;通过变分模态分解算法对分合闸线圈电流进行分解,并确定有效反映线圈电流关键信息的模态分量;随后采用削波方式处理模态分量以提取线圈电流波形关键时间点及对应电流特征值。基于断路器实验平台采集的数据样本的实验验证结果表明,该方法能够准确有效地提取分合闸线圈电流关键特征值。The current waveform of the opening and closing coils of high⁃voltage circuit breakers contains rich status information of the circuit breaker operating mechanism and control circuit.It is of great significance to analyze the characteristics of opening and closing coil current for condition monitoring and fault diagnosis of high voltage circuit breaker.A high⁃voltage circuit breaker′s opening and closing coil current feature value extraction based on variational mode decomposition(VMD)modal component is proposed.The VMD algorithm is used to decompose the opening and closing coil current to determine the modal components that effectively reflect the key information of the coil current.The modal components are processed by means of clipping method to extract key time points and corresponding current feature values of the coil current waveform.The experimental verification results based on the data samples collected from the circuit breaker experimental platform show that this method can accurately and effectively extract the key feature values of the opening and closing coil current.

关 键 词：高压断路器 分合闸线圈电流 变分模态分解 模态分量 特征值提取 故障模拟 

分 类 号：TN712.1-34[电子电信—电路与系统] TH162[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]