Toward energy harvesting using active materials and conversion improvement by nonlinear processing

This paper presents a new technique of electrical energy generation using mechanically excited piezoelectric materials and a nonlinear process. This technique, called synchronized switch harvesting (SSH), is derived from the synchronized switch damping (SSD), which is a nonlinear technique previousl...

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Bibliographic Details
Published in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2005-04, Vol.52 (4), p.584-595
Main Authors: Guyomar, D., Badel, A., Lefeuvre, E., Richard, C.
Format: Article
Language:English
Subjects:
Acoustics
Conversion
Damping
Energy harvesting
Energy use
Exact sciences and technology
Excitation
Frequency synchronization
Fundamental areas of phenomenology (including applications)
General equipment and techniques
Harvesting
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Mechanical sensors
Nonlinearity
Physics
Piezoelectric materials
Piezoelectricity
Resonance
Resonant frequency
Stress
Switches
Transducers
Ultrasonics, quantum acoustics, and physical effects of sound
Vibrations
Voltage
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Summary:This paper presents a new technique of electrical energy generation using mechanically excited piezoelectric materials and a nonlinear process. This technique, called synchronized switch harvesting (SSH), is derived from the synchronized switch damping (SSD), which is a nonlinear technique previously developed to address the problem of vibration damping on mechanical structures. This technique results in a significant increase of the electromechanical conversion capability of piezoelectric materials. Comparatively with standard technique, the electrical harvested power may be increased above 900%. The performance of the nonlinear processing is demonstrated on structures excited at their resonance frequency as well as out of resonance.
ISSN:0885-3010
1525-8955
DOI:10.1109/TUFFC.2005.1428041