Two Mechanical Tuning Schemes to Improve the Bandwidth of Electret-based Electrostatic Energy Harvester

Zhang, Yulong; Guo, Xinge; Liu, Zong; Luo, Anxin; Wang, Fei

10.1109/AIM.2018.8452233

2018

2159-6255

978-1-5386-1855-4

2018 IEEE/ASME INTERNATIONAL CONFERENCE ON ADVANCED INTELLIGENT MECHATRONICS (AIM)

2018-July

375-380

9-12 July 2018

Auckland, New zealand

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

In this paper, we propose two mechanical schemes with the structures to improve the bandwidth of electrostatic energy harvester (e-VEH) which is based on an out-of-the-plane gap closing scheme. Firstly, we study the broadband performance of the single resonant e-VEH with package shell at low air pressure. It is found that under the acceleration of 1.8 m/s2, the bandwidth is increased to 30 Hz at the pressure of 4 Pa. Also, a novel dual resonant structure has be proposed to broaden the bandwidth of e-VEH. In this new dual resonant e-VEH, there will be a mechanical coupling when the collision occurs between the two movable proof masses. This collision phenomenon will contribute to the high output between the two resonant frequencies, thus a broad operating bandwidth will be achieved at atmosphere.

Resonant frequency Bandwidth Electrostatics Vibrations Electrets Capacitors Periodic structures

第一 ; 通讯

英语

CPCI-S ; EI

Guangdong Natural Science Funds for Distinguished Young Scholar[2016A030306042]

Computer Science ; Engineering

Computer Science, Artificial Intelligence ; Engineering, Electrical & Electronic

WOS:000447254200063

20183905876790

Bandwidth ; Electrostatic generators ; Electrostatics ; Energy harvesting ; Natural frequencies

Energy Conversion Issues:525.5 ; Electricity: Basic Concepts and Phenomena:701.1 ; Information Theory and Signal Processing:716.1 ; Mechatronix:731.7

Web of Science

Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Zhang, Yulong,Guo, Xinge,Liu, Zong,et al. Two Mechanical Tuning Schemes to Improve the Bandwidth of Electret-based Electrostatic Energy Harvester[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2018:375-380.