System-level finite element simulation of piezoelectric energy harvesters with rectified interface circuits

Yabin Liao, Feng Qian, Lei Zuo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Based on the equivalent impedance analysis, a method is proposed to realize a coupled-field simulation study of piezoelectric energy harvesters of rectified interface circuits through an equivalent linear circuit. The method opens up opportunities for finite element packages to analyze, design, and optimize energy harvesters at a system level, either adding the capability of simulating rectified circuit interfaces, or reducing a nonlinear circuit interface simulation into a faster and more stable linear simulation that can be solved more conveniently. The nonlinear rectified circuit is replaced with an equivalent external linear circuit of two passive electrical elements in series. The types and values of the passive elements are explicitly determined for the standard AC-DC (SEH) and synchronized switch harvesting on inductor (SSHI) circuit interfaces. For validation, this equivalent linear circuit is applied to a bimorph beam harvester in ANSYS, and a system-level analytical approach is introduced which integrates two established analytical approaches. The agreement between the ANSYS results and those of the integrated analytical approach validates this equivalent linear circuit method and the integrated analytical approach.

Original languageEnglish (US)
Title of host publicationActive and Passive Smart Structures and Integrated Systems XV
EditorsJae-Hung Han, Gang Wang, Shima Shahab
PublisherSPIE
ISBN (Electronic)9781510640054
DOIs
StatePublished - 2021
EventActive and Passive Smart Structures and Integrated Systems XV 2021 - Virtual, Online, United States
Duration: Mar 22 2021Mar 26 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11588
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceActive and Passive Smart Structures and Integrated Systems XV 2021
Country/TerritoryUnited States
CityVirtual, Online
Period3/22/213/26/21

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'System-level finite element simulation of piezoelectric energy harvesters with rectified interface circuits'. Together they form a unique fingerprint.

Cite this