Performance Analysis of a Piezoelectric Energy Harvesting System

Abstract

This paper analyzes a piezoelectric system made of a smart lead zirconate material. The system is composed of a monolithic PZT (piezoelectric ceramic) plate made of a ceramic-based piezoelectric material. The experiment was conducted on a test stand with a GUNT HM170 wind tunnel and a special measurement system. The developed bluff-body shape mounted on an elastic beam with a piezoelectric was mounted on a mast with arms. Springs were fixed on the arms to limit the movement of the test object. Air flow velocity in the wind tunnel and forced vibration frequencies were changed during the tests. The recorded parameters were an output voltage signal from the piezoelectric element and linear accelerations at selected points of the test object. The highest energy efficiency of the tested system was specified from mechanical vibrations and air flow. The results of the tests are a resonance curve for the tested system and a correlation of RMS voltage and acceleration as a function of the velocity of air flow for the excitation frequency f ranging from 1 to 6 Hz. The tests specified the area where the highest output voltage under the given excitation conditions is generated.

Piezoelectric Energy Harvester Response Statistics

“…Given specific wind-speed probabilities, the discrete constant wind speeds may then be plugged into this in situ distribution. A piezoelectric sheet (Model: PZT-5, JiaYeShi., China) of 30 × 20 × 0.5 mm 3 was equipped on a substrate made of pure aluminium with dimensions of 200 × 25 × 0.5 mm 3 to construct the piezoelectric cantilever [ 6 , 7 , 8 ]. The clamped capacitance of the piezoelectric transducer was 30.5 nF.…”

“…In a recent study [ 4 ], authors reported a successful transition from VIVPEH to GPEH (galloping-based piezoelectric energy harvester) by adding two Y-shaped attachments. For recent applications of aero-flow piezoelectric energy-harvesting systems discussing galloping and the VIV phenomenon [ 7 , 8 ].…”

Research on Vibration Energy Harvester Based on Two-Dimensional Acoustic Black Hole

“…The investigated system consisted of a bluff body in the form of a unique geometry. Ambrożkiewicz, B [ 10 , 11 ] analyzes the energy efficiency of a Micro Fiber Composite (MFC) piezoelectric system. The shape used, which is a hybrid combining square and circular cross-sections, is an example of a solution between galloping and the VIV phenomena.…”