An Impact-Driven Frequency Up-Converter without Coupling Phase for Electret-Based Vibration Energy Harvester

Zhaoshu Yang, Lihua Tang, Kai Tao, Guoping Liu, Kean Aw

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

One critical issue of electret-based vibrational energy harvesters (eVEHs) for wearable applications is to improve their adaptability for low-frequency ambient environments. This paper exploits the impact-driven frequency up-converter without coupling phase to improve the power output of an electret-based vibration energy harvester. A vibro-impact model is established, solved numerically by SIMULINK, and verified by SOLIDWORKS/motion study tool. The frequency up-conversion mechanism with delicately avoided coupling phase is demonstrated to improve the power output of the eVEH significantly. According to our analysis, the proposed technique improves the energy harvesting efficiency of eVEH by 40%, for an ultra-low frequency excitation of 2 Hz. By and large, the work of this paper could potentially extend the application of eVEH in low frequency scenarios.

Original languageEnglish
Title of host publicationActive and Passive Smart Structures and Integrated Systems XVI
EditorsJae-Hung Han, Shima Shahab, Jinkyu Yang
PublisherSPIE
ISBN (Electronic)9781510649613
DOIs
StatePublished - 2022
EventActive and Passive Smart Structures and Integrated Systems XVI 2022 - Virtual, Online
Duration: 4 Apr 202210 Apr 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12043
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceActive and Passive Smart Structures and Integrated Systems XVI 2022
CityVirtual, Online
Period4/04/2210/04/22

Keywords

  • Electret-based vibration energy harvester (eVEH)
  • frequency up-conversion
  • model-based design
  • vibro-impact modelling

Fingerprint

Dive into the research topics of 'An Impact-Driven Frequency Up-Converter without Coupling Phase for Electret-Based Vibration Energy Harvester'. Together they form a unique fingerprint.

Cite this