Thermoelectric energy harvesting for wireless onboard rail condition monitoring
Thermoelectric energy harvesting for wireless onboard rail condition monitoring
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DOI：
10.1080/23248378.2023.2201247
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发表时间：
2023-04
影响因子：
4
通讯作者：
H. Foltz;C. Tarawneh;Martin Amaro;Sebastian Thomas;Danna Capitanachi Avila
中科院分区：
文献类型：
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作者：
H. Foltz;C. Tarawneh;Martin Amaro;Sebastian Thomas;Danna Capitanachi Avila
摘要热电能量收集装置被评估为轴承健康监测系统提供动力。与路边设备不同，新系统是一种车载无线解决方案，利用加速度计和温度传感器连续评估轴承状况。该采集系统由两个热电发电机模块组成，该模块具有铝散热器、开关升压转换器、电池管理电路和锂可充电电池。收割机的性能在安装在实验室测试仪上的AAR级轴承上进行了验证，负载和速度模拟了长达896英里的常见货运路线。所收获的能量随操作条件而变化，并且所呈现的数据显示了负载和速度的影响。在实际的路由中，所收集的净能量是无限期为蓝牙低功耗传感器供电所需能量的两倍多。关键的设计参数是开路电压与温差的热电模块的比率，以及升压转换器的冷启动电压。
ABSTRACT A thermoelectric energy harvesting device is evaluated to power a bearing health monitoring system. Unlike wayside equipment, the new system is an onboard wireless solution utilizing accelerometer and temperature sensors to assess the bearing condition continuously. The harvesting system consists of two thermoelectric generator modules with aluminium heat sinks, a switching boost converter, a battery management circuit, and a lithium rechargeable battery. The performance of the harvester is validated on an AAR class bearing mounted on a laboratory tester, with load and speed simulating common freight routes of up to 896 miles. The energy harvested varies with operating conditions, and data is presented showing the effect of load and speed. Over a realistic route, the net energy harvested is more than double that needed to indefinitely power a Bluetooth Low Energy sensor. The critical design parameters are the ratio of open-circuit voltage to the temperature difference for the thermoelectric module, and the cold start voltage of the boost converter.