基于射频技术的开关柜无源无线温度测量系统

Passive Wireless Temperature Measurement System for Switchgear Cabinet Based on Radio Frequency Technology

配电开关柜安全运行对保障供电可靠性至关重要,配电开关设备的温度监测是前期状态判断和故障后期诊断的重要手段。文中研制了一套基于射频技术的开关柜无源无线温度测量系统,用于配电设备温度状态监测,通过无源无线的方式减少传感设备供电寿命问题、引线爬电问题及布线安装问题。对系统中传感器设备的传感、通讯、封装相关技术进行研究,对系统运行的工作流程进行设计。对系统进行实际运行环境测试和性能及功能测试,测试结果显示本系统适用于开关柜的温度监测,对智能配电网传感节点的智能化、无线化和自取能、自组网有着推动意义。

The safe operation of distribution switchgear cabinet is very important to ensure the reliability of power supply.The temperature monitoring of distribution switchgear cabinet is an important means to judge the fault in the early stage and diagnose the fault in the late stage.In this paper,a kind of passive wireless temperature measurement system for switchgear cabinet based on RF technology is developed,which is used for temperature state monitoring of distribution equipment.Such issues as power supply life of sensing equipment can be reduced through the passive wireless method.Moreover,such related technology as the sensing,communication and packaging technology of the sensor equipment in the system is studied and the working flow of the system operation is also design.The actual operating environment test and performance as well as function test of the system are carried out.The test test results show that the system is suitable for the temperature monitoring of the switchgear cabinet and has a certain promotion significance for the intelligent and wireless sensing nodes of the smart distribution network,as well as the self-generating energy and the self-organizing network.