A comprehensive study of non-linear air damping and "pull-in" effects on the electrostatic energy harvesters

Guo, Xinge1; Zhang, Yulong1; Fan, Kangqi2; Lee, Chengkuo3; Wang, Fei1

2020

10.1016/j.enconman.2019.112264

ENERGY CONVERSION AND MANAGEMENT   影响因子和分区

0196-8904

1879-2227

In this paper, a new comprehensive model is presented to optimize the design of vibration based electrostatic energy harvester working in standard atmosphere. This model considers the non-linear air damping force induced by the movement of proof mass as well as the "pull-in" effect from the electrostatic force. Important parameters such as the height of stoppers on the bottom plate, the initial gap between the bottom plate and proof mass and the surface potential of the electret layer have been investigated. With the microelectromechanical system (MEMS) technology, a series of energy harvesters have been fabricated with various parameters. The measurements of devices show excellent agreement with the simulations. For the first time, the "pull-in" phenomenon has been observed during the harvesting test as our expectation. The model provides a promising optimization route for the electrostatic energy harvester with broad bandwidth, decent power output while avoiding the "pull-in" effect.
© 2019 Elsevier Ltd

Energy harvester Electrostatic Air damping Pull-in effect Non-linearity

EI ; SCI

英语

第一 ; 通讯

Science, Technology and Innovation Commission of Shenzhen Municipality[JCYJ20170412154426330] ; [2016A030306042]

Thermodynamics ; Energy & Fuels ; Mechanics

Thermodynamics ; Energy & Fuels ; Mechanics

WOS:000504504000017

Elsevier Ltd

20194807738592

Damping ; Electromechanical devices ; Electrostatic generators ; Electrostatics ; Energy harvesting ; MEMS

Energy Conversion Issues:525.5 ; Electricity: Basic Concepts and Phenomena:701.1 ; Electric Equipment:704.2 ; Mechanics:931.1

ENGINEERING

EV Compendex

1.School of Microelectronics, Southern University of Science and Technology, Shenzhen; 518055, China
2.School of Mechano-Electronic Engineering, Xidian University, Xi'an; 710071, China
3.Department of Electrical & Computer Engineering, National University of Singapore, Singapore; 117576, Singapore

Guo, Xinge,Zhang, Yulong,Fan, Kangqi,et al. A comprehensive study of non-linear air damping and "pull-in" effects on the electrostatic energy harvesters[J]. ENERGY CONVERSION AND MANAGEMENT,2020,203.

Guo, Xinge,Zhang, Yulong,Fan, Kangqi,Lee, Chengkuo,&Wang, Fei.(2020).A comprehensive study of non-linear air damping and "pull-in" effects on the electrostatic energy harvesters.ENERGY CONVERSION AND MANAGEMENT,203.

Guo, Xinge,et al."A comprehensive study of non-linear air damping and "pull-in" effects on the electrostatic energy harvesters".ENERGY CONVERSION AND MANAGEMENT 203(2020).