Autonomous WSNs node powered by a thermal energy harvester for temperature monitoring

作     者：Zhang, Zhijuan Ji, Xiaoming Zhang, Qunjun Hou, Liqun 

作者机构：School of Electrical and Electronic Engineering North China Electric Power University Baoding China School of Control and Computer Engineering North China Electric Power University Baoding China 

出 版 物：《International Journal of Ambient Energy》 (Int J Ambient Energy)

年 卷 期：2023年第44卷第1期

页      面：1058-1066页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 080802[工学-电力系统及其自动化] 08[工学] 0807[工学-动力工程及工程热物理] 0813[工学-建筑学] 0814[工学-土木工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：This work was supported by the Natural Science Foundation of Hebei Province  China [grant number F2016502104] 

主　　题：Thermal energy 

摘      要：An autonomous wireless sensor networks (WSNs) node powered by a thermal energy harvester with MPPT is proposed in this paper for temperature monitoring. Two commercial TEG modules are used to build up the thermoelectric collector, while an energy management circuit with a DC/DC converter is employed to boost the TEG output voltage. The harvested energy is stored in a supercapacitor. The feasibility of the presented self-powered WSNs node is verified by a series of experiments with various node sleep periods and temperature differences across the thermoelectric generator (ΔT TEG). The results show that the proposed thermal energy harvester can work at its maximum power point and autonomously power a commercial WSN node when ΔT TEG is above 13.3°C and node sleep period is not less than 1.5 s. In addition, the designed self-powered WSNs node can monitor the temperature of industrial devices successfully. © 2023 Informa UK Limited, trading as Taylor & Francis Group.