Piezoelectric energy harvesting computer controlled test bench.

Area of Science:

• Electrical Engineering
• Materials Science
• Energy Harvesting

Background:

• Piezoelectric materials offer a promising avenue for energy harvesting.
• Optimizing energy extraction from mechanical impacts and vibrations presents significant challenges.
• Existing methods for modeling piezoelectric energy harvesting systems require improvement for real-world applications.

Purpose of the Study:

• To present a novel computer-controlled laboratory test bench for characterizing piezoelectric energy harvesting elements.
• To develop an accurate and automated method for modeling piezoelectric devices and harvesting circuits.
• To enable the scaling of energy generation by integrating multiple piezoelectric devices.

Main Methods:

• Development of a computer-controlled (C.C.) laboratory test bench.
• Integration of a C.C. road traffic simulator and automated measurement hardware.
• Utilizing LabVIEW™ for the test bench control software interface.
• Characterizing piezoelectric elements and circuits for mechanical-to-electrical energy conversion.

Main Results:

• A generalized linear equivalent electrical model for piezoelectric elements was obtained.
• The test bench accurately and automatically characterized piezoelectric-based energy store harvesting circuits.
• The developed model facilitates the scaling of energy generation with integrated devices.

Conclusions:

• The presented C.C. test bench provides an accurate and automated solution for modeling piezoelectric energy harvesting systems.
• This research contributes to optimizing power extraction from road traffic environments using piezoelectric technology.
• The findings support the integration of multiple piezoelectric devices for enhanced energy generation.