Sistema hidráulico para generación de energía eléctrica a partir de energía undimotriz

摘要

The invention concerns a hydraulic system for generating electrical energy by using the energy produced by wave movement (wave power), on the basis of the compression and expansion of a fluid, which may be hydraulic or pneumatic, by means of a piston actuated by wave movement. Via a hydraulic inverter, the fluid supplies a hydraulic (or pneumatic) motor coupled to an electric generator. The system is disposed inside a floating buoy, moved by the action of the surge. The movement of the piston is brought about by the combined action of the surge and a guycable (or the like) tensioned by a dead weight, and a mechanical spring (or hydraulic or pneumatic accumulation system which fulfils the same function) which ensures that the cable is taut. The system comprises a secondary cylindrical chamber, separate from that of the generator cylinder or forming part thereof, for compensating the variation in position of the buoy owing to the effects of the tide.