摘要
针对电力系统继电保护装置运行状态监测中存在的故障识别延迟、缺陷检测精度不足等技术难题,研究声音信号分析技术在继电保护设备故障诊断、运行状态评估、异常预警中的创新应用。通过采集和分析继电保护装置产生的声音信号特征,建立基于时频域参数和声学特征提取的智能诊断模型。实验结果表明,声音信号分析技术在轻负荷、标准负荷和重负荷3种工况下的各项关键性能指标,均满足《厂用电继电保护整定计算导则》(DL/T 1502—2016)的技术要求。
Aiming at the technical problems such as the delay of fault identification and the insufficient precision of defect detection in the operation state monitoring of relay protection devices in power system,the innovative application of sound signal analysis technology in fault diagnosis,operation state evaluation and abnormal early warning of relay protection devices is studied.By collecting and analyzing the characteristics of sound signals generated by relay protection devices,an intelligent diagnosis model based on time—frequency domain parameters and acoustic feature extraction is established.The experimental results show that the key performance indexes of acoustic signal analysis technology under light load,standard load and heavy load all meet the technical requirements of Guidelines for Setting Calculation of Plant Power Relay Protection(DL/T 1502-2016).
作者
张超
黄惠
ZHANG Chao;HUANG Hui(State Grid Jilin Electric Power Co.,Ltd.,Changchun Power Supply Company,Changchun 130000,China)
出处
《电声技术》
2025年第10期63-65,共3页
Audio Engineering
关键词
声音信号分析技术
继电保护系统
故障诊断
状态监测
sound signal analysis technology
relay protection system
fault diagnosis
condition monitoring
