基于温差发电供能的无源无线测温系统的设计

摘要

在电力系统中,对高压电力设备运行温度的检测是保证供电的稳定和安全的重要措施.设计了一套适用于高压电力设备的无源无线测温系统,采用铂电阻分压法测量温度,基于塞贝克效应的温差发电方式供电,数据通过红外传输.从低功耗的角度,设计了测温系统的硬件和软件.进行了温度数据采集、系统启动时间和接收距离的实验,结果表明该系统能够实现自启动和定时测温的功能.%In power system , the temperature monitoring of high-voltage power equipment during operation is an impor-tant measure to ensure the stability and security of power supply .In this paper , the passive wireless temperature meas-urement system for high-voltage power equipment is designed and implemented .The system measures temperature by the method of divided voltage of platinum resistance , and supplied by thermoelectric generation based on the Seebeck effect, and the data is transferred by infrared light .The hardware and software of temperature measurement is accom-plished in the principle of low-power consumption .Finally, the experiment of temperature data acquisition , system start-up time and receiving distance is carried out , and results show that the system can realize self-starting and cycli-cal temperature measurement .