Power and bandwidth analysis of vibration-based piezoelectric energy harvesting systems using electrically induced damping
Journal
Proceedings of SPIE - The International Society for Optical Engineering
Journal Volume
12946
ISBN (of the container)
9781510671980
ISBN
9781510671980
Date Issued
2024-05-09
Author(s)
DOI
10.1117/12.3009793
Abstract
This paper explores using electrically induced damping (electrical damping) as a dual indicator to power output and harvesting bandwidth in vibration-based piezoelectric energy harvesting. It evaluates electrical damping's impact on bandwidth and power using an impedance-based unified model. Analytical formulas are systematically developed to quantify the electrical damping and change in system stiffness for harvesters interfaced with various circuit topologies. The relationship between the electrical damping and power is elucidated through both analytical analysis and numerical examples. This electrical damping approach allows for analyzing power and bandwidth simultaneously.
Event(s)
Active and Passive Smart Structures and Integrated Systems XVIII 2024, Long Beach, 25 March 2024 through 28 March 2024, Code 199775
Subjects
bandwidth
effective stiffness
electrical damping
Energy harvesting
equivalent impedance
impedance matching
piezoelectric
SDGs
Publisher
SPIE
Description
Article number 129460Z
Type
conference paper