Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Maximum power point tracking for a multi-layered piezoelectric heel charger with a levered mechanism toward impact-based energy harvesting

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/5.0091254· OSTI ID:1979084

The piezoelectric footstep energy harvester does not always work at its maximum power point when the external load is fixed, as the optimal load changes when the walking excitation alters. Thus, the harvesting efficiency is downgraded largely in real-life scenarios compared to in-lab experiments and theoretical or numerical predictions due to the mismatch between the actual load and the optimal load. To address this issue, the concept of Maximum Power Point Tracking (MPPT) is investigated in this paper and the circuit design is implemented for a multi-layered levered piezoelectric footstep energy harvester (heel charger). The proposed event-driven MPPT circuit interface with a customized buck converter aims to maximize the power gained from daily walking using the heel charger to power a fixed load, such as smart insole or shoes. The MPPT circuit design is conceptually simulated and then tested with the heel charger to further validate if it works at its maximum power point when the frequency of the input excitation alters. Results show that the extracted power from the heel charger connected to a fixed resistance load with MPPT implementation is improved up to 300% compared to the one without MPPT implementation in simulation and up to 180% in the experiment when connected to a fixed load. The difference between simulation and experimental results is due to the optimization of using voltage sources as the heel charger and the control signals (pulse width modulation) from the microcontroller in the simulation.

Research Organization:
Texas A & M University, College Station, TX (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
Grant/Contract Number:
AR0000945
OSTI ID:
1979084
Alternate ID(s):
OSTI ID: 1885075
Journal Information:
Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 9 Vol. 93; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (40)

A survey of wearable energy harvesting systems journal October 2021
Comparison between four piezoelectric energy harvesting circuits journal March 2009
Embedded sensor insole for wireless measurement of gait parameters
  • Martínez-Martí, Fernando; Martínez-García, María Sofía; García-Díaz, Santiago G.
  • Australasian Physical & Engineering Sciences in Medicine, Vol. 37, Issue 1 https://doi.org/10.1007/s13246-013-0236-7
journal December 2013
The application of soft computing methods for MPPT of PV system: A technological and status review journal July 2013
An improved perturb and observe (P&O) maximum power point tracking (MPPT) algorithm for higher efficiency journal July 2015
Objectively quantifying walking ability in degenerative spinal disorder patients using sensor equipped smart shoes journal May 2016
Wearable triboelectric nanogenerators for biomechanical energy harvesting journal November 2020
General review and classification of different MPPT Techniques journal February 2017
A review on MPPT techniques of PV system under partial shading condition journal December 2017
A comparison between several vibration-powered piezoelectric generators for standalone systems journal February 2006
A novel multi-model neuro-fuzzy-based MPPT for three-phase grid-connected photovoltaic system journal December 2010
Electronic Textiles for Wearable Point-of-Care Systems journal December 2021
Smart textiles for personalized healthcare journal March 2022
A nonlinear MEMS electrostatic kinetic energy harvester for human-powered biomedical devices journal December 2015
A nonlinear interface integrated lever mechanism for piezoelectric footstep energy harvesting journal July 2018
A non-resonant rotational electromagnetic energy harvester for low-frequency and irregular human motion journal November 2018
Shoes-equipped piezoelectric transducer for energy harvesting: A brief review journal February 2016
Maximum power point of piezoelectric energy harvesters: a review of optimality condition for electrical tuning journal January 2020
Screen-printed piezoelectric shoe-insole energy harvester using an improved flexible PZT-polymer composites journal December 2013
Toward Unobtrusive Patient Handling Activity Recognition for Injury Reduction Among At-Risk Caregivers journal May 2017
A Smart Environment-Adapting Timed-Up-and-Go System Powered by Sensor-Embedded Insoles journal April 2019
Simultaneous Energy Harvesting and Gait Recognition Using Piezoelectric Energy Harvester journal June 2022
Automatic Recognition of Activities of Daily Living Utilizing Insole-Based and Wrist-Worn Wearable Sensors journal July 2018
Smart Insole-Based Indoor Localization System for Internet of Things Applications journal August 2019
Monitoring Insole (MONI): A Low Power Solution Toward Daily Gait Monitoring and Analysis journal August 2019
Platform Architecture for Solar, Thermal, and Vibration Energy Combining With MPPT and Single Inductor journal September 2012
Self-Powered 30 µW to 10 mW Piezoelectric Energy Harvesting System With 9.09 ms/V Maximum Power Point Tracking Time journal October 2015
Kinetic Gait Analysis Using a Low-Cost Insole journal December 2013
Energy Harvesting From Piezoelectric Materials Fully Integrated in Footwear journal March 2010
Improved Design and Analysis of Self-Powered Synchronized Switch Interface Circuit for Piezoelectric Energy Harvesting Systems journal April 2012
Low-Power Design of a Self-powered Piezoelectric Energy Harvesting System With Maximum Power Point Tracking journal May 2012
Maximum Power Point Tracking Converter Based on the Open-Circuit Voltage Method for Thermoelectric Generators journal February 2015
Toward energy harvesting using active materials and conversion improvement by nonlinear processing journal April 2005
Piezoelectric Energy Harvesting Device Optimization by Synchronous Electric Charge Extraction journal October 2005
Piezoelectric stack energy harvesting with a force amplification frame: Modeling and experiment journal July 2016
Boosting the efficiency of a footstep piezoelectric-stack energy harvester using the synchronized switch technology journal February 2019
Investigations on postural stability and spatiotemporal parameters of human gait using developed wearable smart insole journal October 2014
Smart Footwear Insole for Recognition of Foot Pronation and Supination Using Neural Networks journal September 2019
Triboelectric Nanogenerator Enabled Smart Shoes for Wearable Electricity Generation journal November 2020
Design and Evaluation of a Connected Insole to Support Healthy Aging of Frail Patients at Home journal January 2019