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Analysis of the energy harvesting performance of a piezoelectric bender outside its resonance

Article dans une revue avec comité de lecture
Auteur
AMANCI, Adrien
GIRAUD, Frédéric
AMBERG, Michel
DAWSON, Francis
LEMAIRE-SEMAIL, Betty
13338 Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
13338 Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
13338 Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
ccGIRAUD-AUDINE, Christophe

URI
http://hdl.handle.net/10985/8546
Date
2014
Journal
Sensors and Actuators A: Physical

Résumé

When the frequency of the source of vibration of a piezolectric generator is significantly different from its eigenfrequency, the dielectric power losses become prominent and decrease the amount of power which is practically harvested. For off-resonance vibrating frequencies, the optimal operating conditions can be obtained with a Maximum Power Point Tracking method. This paper introduces complex phasors in the study of power conversion for piezoelectric generators. These complex phasors are used to describe three strategies which help simplify the tracking of the optimal generator output power for vibration frequencies which are away from resonance. Experimental results obtained on a prototype illustrate and confirm the approach with the phasor approaches illustrate and confirm the success of the proposed optimal power tracking strategies. Finally, we show that the efficiency results of each strategy depend on whether they are used inside or outside a frequency bandwidth around the eigenfrequency, and that the length of this bandwidth depends on the excitation amplitude.

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  • Laboratoire d'Electrotechnique et d'Electronique de Puissance (L2EP) de Lille

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Modelling of beam excited by piezoelectric actuators in view of tactile applications 
    Communication avec acte
    NADAL, Clément; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty; ccGIRAUD-AUDINE, Christophe (IEEE, 2014)
    This paper deals with an unidimensional analytical modelling of the vibratory behaviour of a rectangular beam excited by several piezoelectric ceramics glued on its lower face. The establishment of the equations of motion ...
  • Generalized modal analysis for closed-loop piezoelectric devices 
    Article dans une revue avec comité de lecture
    ccGIRAUD-AUDINE, Christophe; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty (IOP Publishing, 2015)
    Stress in a piezoelectric material can be controlled by imposing an electrical field. Thanks to feedback, this electrical field can be a function of some strain-related measurement so as to confer on the piezoelectric ...
  • Preliminary design of a multi-touch ultrasonic tactile stimulator 
    Communication avec acte
    GHENNA, Sofiane; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty; ccGIRAUD-AUDINE, Christophe (IEEE, 2015)
    This paper presents a method to control ultrasonic waves on a beam, allowing to obtain a Multi-touch ultrasonic tactile stimulation in two points, to give the sensation to two fingers, from two piezoelectric transducers. ...
  • Modelling, identification and control of a Langevin transducer 
    Communication avec acte
    GHENNA, Sofiane; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty; ccGIRAUD-AUDINE, Christophe (IEEE, 2015)
    The control of the vibration amplitude, and the resonance frequency tracking for ultrasonic transducer have been established. However, some applications require to control the vibration amplitude and its relative phase at ...
  • Modelling and control of a travelling wave in a finite beam, using multi-modal approach and vector control method 
    Communication avec acte
    GHENNA, Sofiane; GIRAUD, Frédéric; AMBERG, Michel; LEMAIRE-SEMAIL, Betty; ccGIRAUD-AUDINE, Christophe (IEEE, 2015)
    This paper presents a new method to produce and control the vibration amplitude and direction of a travelling wave in a finite beam, using multi-modal approach. A closed loop control of the transducer vibration is applied ...

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