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.
摘要:
The invention relates to a wave power plant, comprising a floating body (1) and means for converting the wave energy received by the body into electric power. The front side of the cross-section of the body (1) opposite to the main incoming direction (A) of the waves is designed to slant forward and upwards in its upper part (11) and to slant backwards and downwards in its lower part (12), in such a way that the propagating wave meets the upper and lower part wave at different stages, whereby the lower part tends to move mainly in the opposite direction with respect to the upper part.
摘要:
A gyrating wave power plant, comprising a body (1) floating on water with a main plane which in calm water is substantially vertical. The body is moored in an orientation with the main plane transverse to the propagation direction of waves. The body has its upper and lower sections provided with arched fins (2, 3). The fins (2) in the body's upper section curve downward when proceeding towards side edges of the body, and the fins (3) in the body's lower section curve upward when proceeding towards side edges of the body. The arched shape of the fins (2, 3) is an oval-shaped spiral with respect to a lateral swaying axis (A) of the body, which is perpendicular to the main plane.
摘要:
The invention relates to a method and a system for adjusting the torque of a mass and spinning wheel rotator in a wave power plant. The torque of a rotator rotating around a vertical shaft is compensated partially or completely with a compensating moment which is produced by an electric machine. Acceleration components (ACCx and ACCy) are measured for a given point of the wave power plant's floating body (1) in directions perpendicular to each other. A vector (Vxy) with a magnitude formula (A) and a direction (aAcc) is established for said acceleration components, the direction or angular position (a) of a rotator (2) is monitored and its lag (αLAG) from the acceleration vector's direction (αAcc) is determined. The compensating moment is adjusted as dependent on a compensation factor (B) whose sub-factors are the magnitude of the body's acceleration vector (Vxy) and the sine of the angle of lag (sin αLAG). This is supplemented with a compensation factor based on spinning wheel forces in a manner otherwise similar except that the acceleration must be replaced with a rotation speed (AVx-y) of the body's inclination, which is obtained from an inertial sensor 821). and the mass must be replaced with a gyro force which is dependent on the inertia and rotating speed of a spinning wheel.
摘要:
A gyrating wave power plant, comprising a body (1) floating on water with a main plane which in calm water is substantially vertical. The body is moored in an orientation with the main plane transverse to the propagation direction of waves. The body has its upper and lower sections provided with arched fins (2, 3). The fins (2) in the body's upper section curve downward when proceeding towards side edges of the body, and the fins (3) in the body's lower section curve upward when proceeding towards side edges of the body. The arched shape of the fins (2, 3) is an oval-shaped spiral with respect to a lateral swaying axis (A) of the body, which is perpendicular to the main plane.
摘要:
A wave power plant (1), comprising a body (1) and a rotator (3) supported on the body. The body (1) is a rather flat, panel type element, which is moored with respect to the propagation direction of waves in such a way that the dimension of the body (1) in the propagation direction of waves is smaller than the draft of the body (1). The body (1) has its diagonally opposite corners provided with substantially horizontally protruding fins (4, 5), which bring about swaying of the body (1) in lateral direction, i.e. in the plane of the panel type element, in response to the vertical motion of water.
摘要:
A wave power plant (1), comprising a body (1) and a rotator (3) supported on the body. The body (1) is a rather flat, panel type element, which is moored with respect to the propagation direction of waves in such a way that the dimension of the body (1) in the propagation direction of waves is smaller than the draft of the body (1). The body (1) has its diagonally opposite corners provided with substantially horizontally protruding fins (4, 5), which bring about swaying of the body (1) in lateral direction, i.e. in the plane of the panel type element, in response to the vertical motion of water.
摘要:
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.