Wave energy converter system
The invention is a wave energy device which optimizes energy conversion from waves with a stable submerged platform coupled to compliant chain of floats (“pods”) which are connected to the platform by piston pumps. Wave action drives pumps to deliver pressurized water to a hydro turbine coupled to an electric generator for delivery of electric power to shore via a submarine cable. Alternatively, the pressurized water may be delivered to shore through pipes on the ocean floor, to generate electric power, also as input flow for reverse osmosis potable water production and for cooling applications.
1. A wave energy converter system comprising:
a submerged backbone structure, wherein the submerged backbone structure comprises a buoyancy chamber located at each longitudinal end of the submerged backbone structure and the submerged backbone serves as a keel and a ballast chamber,
at each longitudinal end of the submerged backbone structure, one of two support frames is coupled to each buoyancy chamber;
a plurality of interconnected pods arranged between the support frames and buoyancy chambers, and located vertically above the submerged backbone structure;
for each pod in the plurality of interconnected pods, one or more power converters connected by a pivoting link to its respective pod, wherein each pod is coupled to react vertically against and relative to the backbone structure through its respective power converter;
a first cable or chain coupling one end of each of the plurality of interconnected pods to the support frames;
a second cable coupling an opposite end of each of the plurality of pods to the support frames;
wherein displacement of the plurality of pods by wave energy drives the power converters to facilitate generation of electricity or high pressure sea water for desalination processing.
2. The system of claim 1 , wherein the backbone structure is U-shaped.
3. The system of claim 1 , wherein the buoyancy chamber at each end of the backbone structure is coupled to a heave plate via a pylon.
4. The system of claim 3 , wherein the pylon has a variable length.
5. The system of claim 3 , wherein the heave plate is foldable.
6. The system of claim 3 , wherein the heave plate has one-way valves.
7. The system of claim 1 , wherein the first cable and the second cable are coupled to an edge of a support frame via a traveler.
8. The system of claim 7 , wherein the traveler is able to freely move in a slot disposed along the edge of a respective support frame.
9. The system of claim 1 , wherein each power converter comprises a hydraulic pump or a mechanical drive to the generator.
10. The system of claim 1 , further comprising a means for adjusting the yaw of the wave energy converter system.
11. A wave energy converter system comprising:
a U-shaped support structure, wherein the U-shaped support structure has a center of buoyancy located above its center of mass,
a plurality of interconnected pods that float vertically above the U-shaped support structure when submerged; and
for each pod in the plurality of interconnected pods, one or more power converters each connected by a pivoting link to its respective pod, wherein each pod is coupled to react vertically against and relative to the U-shaped support structure through its respective the power converters, the plurality of interconnected pods are coupled to one another via at least one cable or chain, and displacement of the plurality of interconnected pods by wave energy drives the power converters to facilitate generation of electricity or high pressure sea water for desalination processing.
12. The system of claim 11 , wherein the U-shaped support structure is coupled to at least one heave plate via a pylon.
13. The system of claim 12 , wherein the at least one heave plate is foldable.
14. The system of claim 12 , wherein the at least one heave plate comprises water valves.
15. The system of claim 11 , further comprising a means for adjusting the yaw of the wave energy converter system.
16. The system of claim 11 , wherein each of the plurality of pods comprises one or more water valves for varying displacement of a pod.