METHOD FOR CONVERTING THE ENERGY OF WATER WAVES INTO ELECTRICITY BY MEANS OF A WAVE POWER PLANT AND A WAVE POWER PLANT
First Claim
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 which is supported on the body and rotates around a rotator shaft which is on average 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 including the following stages;
- the floating body is rolled by means of waves in step with the waves the gyro is rotated around the gyro shaftthe inclination of the gyro shaft with respect to the horizontal plane is caused as a result of the rolling motion, andthe rotation of the rotator is influenced by the torque of the gyro, which follows from the inclination of the gyro shaft, wherein that by means of the rotator'"'"'s mass are produced moments rotating the rotator in the same direction at the same stage 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, that the 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 vertical, or when in operation, a wall inclined on average in the incoming direction of the wave, which is transverse to the direction of travel of the waves, that the lower part of the body is influenced by anchor force which takes part in inclining the body and causing acceleration, and that 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.
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Abstract
A method for converting the energy of water waves into electricity by means of a wave power plant and 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.
12 Citations
15 Claims
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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 which is supported on the body and rotates around a rotator shaft which is on average 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 including the following stages;
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the floating body is rolled by means of waves in step with the waves the gyro is rotated around the gyro shaft the inclination of the gyro shaft with respect to the horizontal plane is caused as a result of the rolling motion, and the rotation of the rotator is influenced by the torque of the gyro, which follows from the inclination of the gyro shaft, wherein that by means of the rotator'"'"'s mass are produced moments rotating the rotator in the same direction at the same stage 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, that the 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 vertical, or when in operation, a wall inclined on average in the incoming direction of the wave, which is transverse to the direction of travel of the waves, that the lower part of the body is influenced by anchor force which takes part in inclining the body and causing acceleration, and that 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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- 8. A wave power plant, which comprises a floating body, a rotator which is supported on the body and rotates around a rotator shaft which is on average 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, wherein the submerged part of the body is a mainly vertical, or when in operation, a wall inclined on average in the incoming direction of the wave, which is transverse to the direction of travel of the waves and extends so deep down that the internal flows of the wave occurring at different heights of the body cause the body to incline in a direction deviating from the rolling direction according to the direction of the wave surface, that the rotator is located in the upper part of the body and the anchoring point in the lower part of the body to utilise the anchor force for producing the movement of the body, that the rotator comprises a mass, the centre of gravity of which is at a distance from the rotator shaft, and the orbital plane of the orbital track of the said centre of gravity is at least at the said distance from the anchoring point of the body, whereby when the body inclines, the mass generates cophasal torques by the effect of both gravity and the horizontal acceleration of the rotator shaft in order to rotate the rotator, and that the gyro is arranged to be used as an equalizer of the said torques during the revolution and as an energy reserve to equalize the effective output of the wave power plant.
Specification