Power harvesting from railways; apparatus system and method

Details Power harvesting from railways; apparatus system and method Power harvesting from railways; apparatus system and method

E - Fixed Constructions

01

B

E01B 26/00 (2006.01) B61L 1/02 (2006.01) H01L 41/113 (2006.01)

Patent

CA 2715112

The present invention relates to apparatus, system, and method for power harvesting from railroads using piezoelectric generators. One embodiment of the invention provides a system comprising a plurality of piezoelectric devices, each embedded in a recess in the railroad sleeper under the rail, wherein the piezoelectric device comprises a plurality of piezoelectric rods embedded in a matrix, for example made of epoxy binder. Another embodiment of the invention provides a system comprising a plurality of piezoelectric devices attached to railroad rails. The piezoelectric devices are configured to produce electrical power when a train traverses their locations. The system may further comprise a power conditioning unit and electrical conductors connecting the piezoelectric devices to the power conditioning unit. Harvested energy may be used locally in proximity to the energy generation location, stored for later use, or transferred to be used in remote location.

L'invention concerne un appareil, un système et un procédé pour recuillir de l'énergie provenant d'un chemin de fer utilisant un générateur piézoélectrique. L'invention concerne également un système et un procédé de collecte d'énergie comprenant plusieurs dispositifs piézoélectriques intégrés dans une traverse de chemin de fer ou fixés aux rails du chemin de fer et configurés de manière à produire de l'énergie électrique lorsque le train traverse leur emplacement. Le système comporte notamment une unité de conditionnement de l'énergie et des conducteurs électriques reliant ledit piézoélectrique à ladite unité de conditionnement de l'énergie. L'énergie recueillie peut servir localement à proximité de l'emplacement de production d'énergie, stockée pour un usage ultérieur ou transférée en vue de son utilisation à un emplacement distant.

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