Improved piezoelectric energy harvester design using aluminum nitride for improved voltage and power output

Title

Improved piezoelectric energy harvester design using aluminum nitride for improved voltage and power output

Creator

Thomas, Elsa Sneha; Rajan, Ranjith

Description

This research focuses on improving the performance of piezoelectric energy harvesters (PEHs), which convert ambient kinetic energy into electricity. One of the primary challenges with piezoelectric harvesters is their high resonant frequencies, which often do not align with the lower natural frequencies of ambient vibrations, limiting their efficiency. The goal of this research is to propose a new technique to optimize the design of PEHs, enhancing voltage output and power conversion efficiency. The proposed method combines an Arithmetic Optimization Algorithm to optimize the harvesters dimensions with a Dual Temporal Gated Multi-Graph Convolution Network (DTGMGCN) to forecast resonant frequency and harvested voltage. The principal objective is to reduce resonant frequency errors and enhance energy conversion efficiency. The results, implemented on a MATLAB platform, demonstrate that the proposed method outperforms the existing techniques, such as robust chaotic Harris Hawk optimization, K-Nearest Neighbor Algorithm, and Heaviside Penalization of Discrete Material Optimization. The existing techniques show errors of 0.04%, 0.06%, and 0.08%, while the proposed method achieves an error of only 0.02%. Additionally, in terms of efficiency, the proposed method reaches 98%, significantly higher than the 65%, 78%, and 85% achieved by the existing techniques. These findings indicate the efficiency of the proposed approach in improving the design and performance of piezoelectric energy harvesters, offering a promising solution for more efficient energy harvesting systems. King Abdulaziz City for Science and Technology 2025.

Source

Applied Nanoscience (Switzerland);Volume;15;Issue;2;Article No.;10;

Date

01-01-2025

Publisher

Springer Science and Business Media Deutschland GmbH

Subject

Aluminum nitride; Crystal; Electrical power; Frequency; Mechanical power; Piezo electric harvester; Pressure; Resonance; Strain; Stress; Voltage

Coverage

Thomas E.S., Department of Electronics and Communication Engineering, Christ University, Karnataka, Bangalore, India; Rajan R., Department of Electronics and Communication Engineering, Christ University, Karnataka, Bangalore, India

Rights

Restricted Access; Hardcopy may be available in the library

Relation

ISSN: 21905509;

Format

online

Language

English

Type

Article

Identifier

https://doi.org/10.1007/s13204-025-03085-y

https://www.scopus.com/pages/publications/105014225901?origin=resultslist