Hybrid piezo/triboelectric nanogenerator for stray magnetic energy harvesting and self‐powered sensing applications

作     者：Aijun Yang Chaoyu Wang Jing Ma Chengyu Fan Pinlei Lv Yuchen Bai Yiming Rong Xiaohua Wang Huan Yuan Mingzhe Rong 

作者机构：State Key Laboratory of Electrical Insulation and Power EquipmentXi’an Jiaotong UniversityXi’anChina 

出 版 物：《High Voltage》 (高电压（英文）)

年 卷 期：2021年第6卷第6期

页      面：978-985页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

基　　金：supported by the State Grid Corporation of China through the Science and Technology Project under Grant 52094020006Z 

主　　题：IoT generator magnetic 

摘      要：Stray magnetic fields with a fixed frequency of 50/60 Hz are ubiquitous in buildings,factories,and power system *** are increasingly focusing on har-vesting electrical energy from stray magnetic fields to provide sustainable energy for the Internet of Things(IoT)***‐mechano‐electric energy conversion is the most efficient way to convert low‐frequency stray magnetic fields into *** this study,we proposed a hybrid piezo/triboelectric nanogenerator(HP/TENG)on the basis of a cantilever beam to use stray magnetic fields from the surrounding *** hybrid nanogenerator provided high output voltage/current and power of∼176 V/375μA and 4.7 mW(matched impedance of 20 kΩ)in a magnetic field environment of 4 *** device provided a stable 3.6 V direct current output by incorporating energy management circuitry to sustainably drive power to commercial wireless temperature/humidity *** HP/TENG has a significant application potential in IoT,which can use stray magnetic energy and a power wireless sensor system.