| CPC F03B 13/20 (2013.01) [B63B 35/44 (2013.01); B63B 2035/446 (2013.01); B63B 2035/4466 (2013.01)] | 3 Claims |
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1. A floating platform integrating wave attenuation with marine energy power generation, the floating platform comprising a breakwater, a tuned damping wave energy converter, and an offshore floating wind turbine; wherein
the breakwater is composed of a double-cylindrical-box structure and connecting bulkheads, the double-cylindrical-box structure is composed of two cylindrical boxes that are parallel to each other, two ends of the double-cylindrical-box structure are connected to each other through the connecting bulkheads, a moon pool area is formed in a middle of the double-cylindrical-box structure, and the breakwater provides a floating base and a working environment for the offshore floating wind turbine and the tuned damping wave energy converter;
the moon pool area utilizes its resonance effect to provide a wave field for the tuned damping wave energy converter, thereby increasing an energy density of wave energy;
the offshore floating wind turbine and the tuned damping wave energy converter are both connected to the breakwater through a connecting rod, the offshore floating wind turbine and the tuned damping wave energy converter are both mounted and installed on a circular pile column in a middle of the connecting rod and located in the moon pool area, the tuned damping wave energy converter converts wave energy into electrical energy, and hydraulic power generation damping systems of the tuned damping wave energy converter have a time lag during operation, which tunes and reduces vibration of the offshore floating wind turbine, such that movements of the hydraulic power generation damping systems and the offshore floating wind turbine are complemented;
the breakwater is connected to the offshore floating wind turbine and the tuned damping wave energy converter through the connecting rod, a circular groove is formed on an inner side of each of the connecting bulkheads of the breakwater, each end of the connecting rod is provided with a self-adaptive connecting disk, and the self-adaptive connecting disk extends into the circular groove and is then connected with the circular groove in a sliding manner, such that the connecting rod and the breakwater is able to roll relative to each other;
the self-adaptive connecting disk is a disk structure, and a first circular notch is formed on a circumferential end surface of the self-adaptive connecting disk; after the self-adaptive connecting disk extends into the circular groove, a second circular notch is formed on an inner wall of the circular groove directly opposite to the first circular notch, the first circular notch and the second circular notch form a sliding track, a roller is disposed inside the sliding track, and the self-adaptive connecting disk keeps relatively stationary when the roller makes the self-adaptive connecting disk rotate inside the circular groove;
the circular pile column is disposed in a middle of the connecting rod, and an upper end surface of the circular pile column is connected to a tower of the offshore floating wind turbine; a wave energy converter mounting platform is disposed on an outer wall below the upper end surface of the circular pile column, and the tuned damping wave energy converter is mounted on the wave energy converter mounting platform; and a ballast tank is mounted on a lower end surface of the circular pile column, and the ballast tank is configured to lower a center of gravity of the floating platform;
the tuned damping wave energy converter comprises semicircular disks disposed on both sides of the circular pile column, hydraulic power generation damping systems, and array-type oscillating power generation floats, wherein the semicircular disks are connected to the wave energy converter mounting platform in a middle of the circular pile column through bolts, a lower end surface of each of the semicircular disks is provided with the hydraulic power generation damping systems distributed in an array, and a lower end of each of the hydraulic power generation damping systems is connected to the array-type oscillating power generation floats through tension-compression rods;
when the breakwater is affected by waves and starts to sway, the cylindrical boxes accordingly shake, driving the connecting bulkheads to shake; and the connecting rod is in rolling connection with the connecting bulkheads through the self-adaptive connecting disk, such that mutual movements among the breakwater and the offshore floating wind turbine, and the tuned damping wave energy converter are separated;
the moon pool area in a middle of the breakwater provides the wave field for the tuned damping wave energy converter, and the tuned damping wave energy converter generates power using wave energy in the wave field; and
when the offshore floating wind turbine sways due to an impact of waves and wind, the connecting rod is driven to shake as a whole, such that the hydraulic power generation damping systems of the tuned damping wave energy converter are driven to shake, stokes of the hydraulic power generation damping systems are accordingly increased, and power generation efficiency of wave energy is improved, affected by damping force of the hydraulic power generation damping systems, movements of the hydraulic power generation damping systems lag behind movements of the offshore floating wind turbine, thereby reducing sway, tuning and reducing vibration of the offshore floating wind turbine.
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