TY - JOUR
T1 - Triboelectric Nanogenerator Based on a Rotational Magnetic Ball for Harvesting Transmission Line Magnetic Energy
AU - Jin, Xu
AU - Yuan, Zhihao
AU - Shi, Yapeng
AU - Sun, Yanggui
AU - Li, Ruonan
AU - Chen, Junhuan
AU - Wang, Longfei
AU - Wu, Zhiyi
AU - Wang, Zhong Lin
N1 - Publisher Copyright:
© 2021 Wiley-VCH GmbH.
PY - 2022/3/2
Y1 - 2022/3/2
N2 - Triboelectric nanogenerators (TENGs) are attractive in powering sensors for smart power grids. Herein, a TENG based on a rotational magnetic ball is presented to harvest the magnetic energy of transmission lines. The magnetic ball rolls in a spherical shell under the alternating magnetic field generated by the transmission line. The centrifugal force produced during the rotation is used to drive a TENG unit (ten times the weight of the magnetic ball and shell) to generate electricity with the assistance of coil springs. The device can maintain the stability of the output performance under high current shocks; meanwhile, the open-circuit voltage, output power, and operating frequency of a single TENG unit can reach 1.5 kV, 6.67 mW, and 20 Hz, respectively. Furthermore, a wireless alarm system for monitoring the temperature and dip angle of transmission lines is successfully driven by this device. This work demonstrates an efficient and nontraditional strategy for harvesting magnetic energy through TENG, which is applied to power-distributed and self-powered sensors for monitoring transmission lines.
AB - Triboelectric nanogenerators (TENGs) are attractive in powering sensors for smart power grids. Herein, a TENG based on a rotational magnetic ball is presented to harvest the magnetic energy of transmission lines. The magnetic ball rolls in a spherical shell under the alternating magnetic field generated by the transmission line. The centrifugal force produced during the rotation is used to drive a TENG unit (ten times the weight of the magnetic ball and shell) to generate electricity with the assistance of coil springs. The device can maintain the stability of the output performance under high current shocks; meanwhile, the open-circuit voltage, output power, and operating frequency of a single TENG unit can reach 1.5 kV, 6.67 mW, and 20 Hz, respectively. Furthermore, a wireless alarm system for monitoring the temperature and dip angle of transmission lines is successfully driven by this device. This work demonstrates an efficient and nontraditional strategy for harvesting magnetic energy through TENG, which is applied to power-distributed and self-powered sensors for monitoring transmission lines.
KW - magnetic energy
KW - rotational magnetic balls
KW - transmission lines
KW - triboelectric nanogenerators
KW - wireless alarm systems
UR - https://www.scopus.com/pages/publications/85119894174
U2 - 10.1002/adfm.202108827
DO - 10.1002/adfm.202108827
M3 - 文章
AN - SCOPUS:85119894174
SN - 1616-301X
VL - 32
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 10
M1 - 2108827
ER -