Method for converting the energy of water waves into electricity by means of a wave power plant and a wave power plant

摘要

A method for converting the energy of water waves into electricity by means of a wave power plant, which comprises a floating body (1), a rotator (3) which is supported on the body and rotates around a rotator shaft (2) which is on average vertical, a gyro (5) which rotates around a gyro shaft (4) which is on average horizontal, the gyro and the gyro shaft rotating with the rotator around the rotator shaft (2), and at least one generator (6), which is connected to rotate together with the gyro or the rotator. By means of the rotator's mass (M) is produced a moment rotating the rotator on the one hand by means of the inclination moment generated by the inclination of the body and gravitation, and on the other hand by means of the acceleration moment generated by the horizontal acceleration of the rotator shaft (2). The inclination and acceleration are caused by directing the internal flows of the wave at the submerged part of the body (1). The moment generated by gyro force is used to equalize the said inclination and acceleration moments during the revolution and the kinetic energy of the gyro is used as an energy reserve to equalize the effective output of the wave power plant.

主权项

1. A method for converting the energy of water waves into electricity by means of a wave power plant, which comprises a floating body, a rotator having a mass and said rotator being supported on the body and rotates around a rotator shaft which is on average in vertical or slightly inclined to the side, a gyro which rotates around a gyro shaft which is on average horizontal, the gyro and the gyro shaft rotating with the rotator around the rotator shaft, and at least one generator, which is connected to rotate together with the gyro or the rotator, the method comprising:
rolling the floating body by waves in step with the waves, rotating the gyro around the gyro shaft, wherein an inclination of the gyro shaft with respect to the horizontal plane is caused as a result of the rolling motion, the rotation of the rotator is influenced by torque of the gyro, which follows from the inclination of the gyro shaft, moments in the same direction as rotating the rotator by the rotator's mass are produced at the same stage by the inclination moment generated by the inclination of the body and gravitation and by the acceleration moment generated by the horizontal acceleration of the rotator shaft, said inclination and acceleration are caused by rolling the body in a direction deviating from the rolling direction according to the direction of the wave surface, which is achieved by directing the internal flows of the wave at the submerged part of the body, which is a mainly in vertical, or when in operation, inclined on average in the incoming direction of the wave, which is transverse to the direction of travel of the waves, the lower part of the body is influenced by anchor force which takes part in inclining the body and causing acceleration, the moment generated by gyro force is used to equalize the said inclination and acceleration moments during the revolution and the kinetic energy of the gyro is used as an energy reserve to equalize the effective output of the wave power plant, and a phase lag of the rotation of the rotator, that is, the angle between the direction of the rotator and the direction of the inclination of the body is adjusted in such a way that the peak of the torque of the gyro coincides with the minimum point of the inclination and acceleration moments.