Water Wave Micro-Energy Mini-Boat Harvester

Mini-bâteau récupérateur de micro-énergie de vaguelette

Sébastien Rigourd , Stephane Carras , Benoit Agnus (1) , Blaise Elysée Guy Ravelo (2) , Serge de Blasi (3)

1 Philips France Semiconducteurs
2 Lab-STICC_UBO_MOM_DIM
3 IFREMER - Institut Français de Recherche pour l'Exploitation de la Mer

This paper introduces an original research work on experimental demonstration of micro-energy harvesting from water wave. To implement this demonstrator, commercial piezo-electric elements are used as an electromechanical aquatic energy transducer. The proof-of-concept is constituted by electrical micro-energy sensor circuit implemented on a mini-boat external surface. The water wave is generated by the valve oscillating motion placed in a water tank. Because of the wave interaction with the piezo, it was shown that the electrical circuit placed on the micro-boat surface generates instantaneous electrical power with microwatt amplitude under some Volts amplitude instantaneous voltage. The influence of the boat orientation in function of the water wave propagation direction is investigated.

Mots clés: Water wave; micro-energy harvester; piezoelectric; electrical circuit; experimentation; electromechanical energy transducer

Domaines: Energie électrique; Electronique

Sébastien Rigourd, Stephane Carras, Benoit Agnus, Blaise Elysée Guy Ravelo, Serge de Blasi. Water Wave Micro-Energy Mini-Boat Harvester. 2019. ⟨hal-02298602v1⟩