TY - JOUR
T1 - Analysis of Cantilever Triple-Layer Piezoelectric Harvester (CTLPH)
T2 - Non-Resonance Applications
AU - Ghodsi, Mojtaba
AU - Mohammadzaheri, Morteza
AU - Soltani, Payam
N1 - Funding Information:
This research was funded by the University of Portsmouth, School of Energy and Electronic Engineering—Internal Funding.
Publisher Copyright:
© 2023 by the authors.
PY - 2023/3/29
Y1 - 2023/3/29
N2 - In this research, a design guideline for a kinetic energy converter using a cantilever tri-ple-layer piezoelectric harvester (CTLPH) for low-frequency applications is presented. By combin-ing the constitutive and internal energy equations, the analytical equations for harvested voltage and power were developed. It was also found that frequency of motion, applied tip force, piezoe-lectric coefficients, geometrical dimensions, and mechanical properties of layers play significant roles in the performance of the harvester. Having characterised the voltage regulator module, LTC3588, the dependency of output voltage on both the storage and output capacitors of the LTC3588 was investigated. An experimental measurement using the optical method was carried out to determine the applied tip force. Furthermore, the performance of the CTLPH in low frequencies (< 3.3 Hz) for various resistive loads was investigated. It was found that both excitation frequency and external resistance load are effective on the maximum generated power. The developed CTLPH shows the optimum power of 17.31 𝜇𝑊at the external resistance of 20 kΩ, which is highly appropriate for micropower devices with at least 3.2 Hz of kinetic vibration in their environment.
AB - In this research, a design guideline for a kinetic energy converter using a cantilever tri-ple-layer piezoelectric harvester (CTLPH) for low-frequency applications is presented. By combin-ing the constitutive and internal energy equations, the analytical equations for harvested voltage and power were developed. It was also found that frequency of motion, applied tip force, piezoe-lectric coefficients, geometrical dimensions, and mechanical properties of layers play significant roles in the performance of the harvester. Having characterised the voltage regulator module, LTC3588, the dependency of output voltage on both the storage and output capacitors of the LTC3588 was investigated. An experimental measurement using the optical method was carried out to determine the applied tip force. Furthermore, the performance of the CTLPH in low frequencies (< 3.3 Hz) for various resistive loads was investigated. It was found that both excitation frequency and external resistance load are effective on the maximum generated power. The developed CTLPH shows the optimum power of 17.31 𝜇𝑊at the external resistance of 20 kΩ, which is highly appropriate for micropower devices with at least 3.2 Hz of kinetic vibration in their environment.
KW - piezoelectric
KW - low-frequency
KW - tip-force
KW - cantilever beam
KW - triple-layer beam
KW - non-resonance harvester
KW - reciprocated motion
KW - tip-mass
KW - LTC3588
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U2 - 10.3390/en16073129
DO - 10.3390/en16073129
M3 - Article
AN - SCOPUS:85152766466
SN - 1996-1073
VL - 16
JO - Energies
JF - Energies
IS - 7
M1 - 3129
ER -