Vibration energy harvester with double frequency-up conversion mechanism for self-powered sensing system in smart city

Anxin Luo1,2; Weihan Xu1; Jiangyong Sun1,2; Kunling Xi1,2; Siyao Tang3; Xinge Guo4; Chengkuo Lee4; Fei Wang1,2

2023

10.1016/j.nanoen.2022.108030

Nano Energy   影响因子和分区

2211-2855

2211-3282

This paper has proposed a vibration energy harvester (VEH) with double frequency-up conversion (FUC) mechanism which can be applied to harvest energy from vibrations at ultra-low frequency. The device can initially up-convert the external vibrations with sub-Hertz into tens of Hertz, and further convert to hundreds of Hertz by the second FUC mechanism, which gives a high conversion ratio of 8400. A comprehensive dynamic model has been proposed and verified both from the theoretical analysis and COMSOL simulation to analyze the frequency conversion process and output voltage. When excited by a frequency of 0.2 Hz, an average output power of 75 mu W could be obtained with a compact size. Benefiting from the non-contact design, the device could be applied in some sealed scenarios for smart city construction. Herein, a wireless humid-temperature sensor node in the pipeline was successfully powered by harvesting energy from humans walking with the proposed VEH, showing promising application prospects.

Vibration energy harvester Energy harvesting at low frequency Frequency -up conversion Self -powered sensing Smart city

SCI ; EI

英语

第一 ; 共同第一 ; 通讯

National Science Foundation of China[62174077] ; Shenzhen Science and Tech-nology Program["JCYJ20200109105838951","JCYJ20220818100415033"] ; China Postdoctoral Science Foundation[2022M711477]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000934840800003

ELSEVIER

20224813187511

Frequency converters ; Sensor nodes ; Smart city

Energy Conversion Issues:525.5 ; Radio Systems and Equipment:716.3 ; Computer Systems and Equipment:722

Web of Science

1.School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China
2.Engineering Research Center of Integrated Circuits for Next-Generation Communications, Ministry of Education, Southern University of Science and Technology, Shenzhen 518055, China
3.School of Art, Kingston University London, London KT1 2QJ, United Kingdom
4.Department of Electrical & Computer Engineering, National University of Singapore, Singapore 117576, Singapore

Anxin Luo,Weihan Xu,Jiangyong Sun,et al. Vibration energy harvester with double frequency-up conversion mechanism for self-powered sensing system in smart city[J]. Nano Energy,2023,105.

Anxin Luo.,Weihan Xu.,Jiangyong Sun.,Kunling Xi.,Siyao Tang.,...&Fei Wang.(2023).Vibration energy harvester with double frequency-up conversion mechanism for self-powered sensing system in smart city.Nano Energy,105.

Anxin Luo,et al."Vibration energy harvester with double frequency-up conversion mechanism for self-powered sensing system in smart city".Nano Energy 105(2023).