电力电缆接头温度异常故障远程在线监测系统设计  

Design of Remote Online Monitoring System for Abnormal Temperature Fault of Power Cable Connector

作　　者：李岩 刘玉娇 胡凡 李国亮 LI Yan;LIU Yu-jiao;HU Fan;LI Guo-liang(State Grid Shandong Electric Power Company Zaozhuang Power Supply Company,Zaozhuang 277100 China)

机构地区：[1]国网山东省电力公司枣庄供电公司,山东枣庄277100

出　　处：《自动化技术与应用》2024年第6期90-93,102,共5页Techniques of Automation and Applications

基　　金：国网山东省电力公司科技项目(520610210001)。

摘　　要：电力电缆接头温度异常故障是影响系统运行的重要因素,以人工为主的检测方式存在较大缺陷,研究提出一种电力电缆接头温度异常故障远程在线监测系统。在硬件设计中,利用DSP和FPGA双重芯片,采集并解析电力电缆接头温度信号数据;选择双频通信监测模块,处理电缆接头的温度信号。在软件设计中,设计电缆接头温度信号采集算法和接收端信号数据处理方法;通过测量电缆外缘表面温度,实现电缆温度异常故障在线监测。系统完成对4组状态的电缆接头检测,当相对湿度为95%Rh、电压为110 V时,均能通过电缆接头的温度变化,对应接头的异常温度故障状态,具有实际应用效果。The abnormal temperature fault of power cable joint is an important factor affecting the system operation,and the manual detection method has great defects.This paper studies a remote on-line monitoring system for abnormal temperature of power cable joints.In the hardware design,the dual chip of DSP and FPGA is used to collect and analyze the temperature signal data of power cable joint.The dual frequency communication monitoring module is selected to process the temperature signal of the cable connector.In the software design,the acquisition algorithm of cable joint temperature signal and the signal data processing method at the receiving end are designed;By measuring the surface temperature of the outer edge of the cable,the on-line monitoring of abnormal cable temperature is realized.This system has completed the detection of four groups of cable joints.When the humidity is 95%and the voltage is 110V,it can pass the temperature change of the cable joints,corresponding to the abnormal temperature fault state of the joints,and has practical application effect.

关 键 词：电缆接头 故障诊断 在线监测 温度异常 采集算法 温度信号 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]