Wave energy conversion incorporating actuated geometry

Patent metadata

Field	Value
Publication number	US-10662918-B2
Application number	US-201816053327-A
Country	US
Kind code	B2
Filing date	Aug 2, 2018
Priority date	Apr 2, 2015
Publication date	May 26, 2020
Grant date	May 26, 2020

Abstract

Described herein are wave energy conversion systems including actuated geometry components. An example system may include at least one body portion configured to transfer wave energy to a power take off device, and at least one actuated geometry component that is connected to the at least one body portion, the at least one actuated geometry component operable to modify a geometric profile of the system.

First claim

What is claimed is:

1. A system comprising:
a body comprising an approximately planar frame having a front surface and at least one opening extending through the body, wherein the body is configured to:
connect to a power take off device; and
during operation, transfer wave energy to the power take off device via movement of the body relative to the power take off device;
a processor configured to receive at least one environmental condition value; and

at least one actuated geometry component that is connected to the body having at least one opening having an open position and a closed position, and communicatively coupled to the processor, wherein the at least one actuated geometry component is configured to:
modify the at least one opening based on the at least one environmental condition value, wherein the modifying results in a reduction in a force on the system.

2. The system of claim 1 , wherein the environmental condition value comprises a value of at least one of: an air temperature, a barometric pressure, a water temperature, a time of day, a wave frequency, a wave amplitude, a wave pressure, a water density, or an amount of ambient light.

3. The system of claim 1 , further comprising a base portion that connects the at least one body portion to a floor of a body of water.

4. The system of claim 1 , wherein modifying the at least one opening changes a resonant frequency of the system.

5. A method comprising:
harvesting wave energy using a wave energy conversion system that comprises:
a body comprising an approximately planar frame having a front surface and at least one opening extending through the body, wherein the body is configured to:
connect to a power take off device, and
during operation, transfer wave energy to the power take off device via movement of the body relative to the power take off device; and

at least one actuated geometry component that is connected to the body, the at least one actuated geometry component being operable by a processor communicatively coupled to the at least one actuated geometry component to modify at least one of a size of the at least one opening between an open position and a closed position;

receiving, by the processor, at least one environmental condition value;
determining, by the processor, whether the at least one environmental condition value surpasses a threshold; and
responsive to determining that the at least one environmental condition surpasses the threshold, operating, by the processor and based on the at least one environmental condition value, the at least one actuated geometry component to modify the at least one opening, wherein the modifying results in a reduction of a force on the wave energy conversion system.

6. The method of claim 5 , wherein the environmental condition value comprises a value of at least one of: an air temperature, a barometric pressure, a water temperature, a time of day, a wave frequency, a wave amplitude, a wave pressure, a water density, or an amount of ambient light.

7. The system of claim 1 , wherein the force is hydrodynamic loading.

8. The system of claim 1 , wherein the force is structural loading.

9. The system of claim 1 , wherein the modifying the at least one opening comprises toggling the opening between the closed position to the open position.

10. The system of claim 5 , wherein the force is hydrodynamic loading.

11. The system of claim 5 , wherein the force is structural loading.

12. The system of claim 5 , wherein the modifying the at least one opening comprises toggling the opening between the closed position to the open position.

Assignees

• Alliance Sustainable Energy

Inventors

• Thresher Robert
• Lawson Michael
• TOM Nathan
• Cotrell Jason
• Yu Yi-Hsiang
• Wright Alan

Classifications

• F05B2270/324

  Air pressure · CPC title

• F03B13/182

  with a to-and-fro movement · CPC title

• F05B2250/02

  variable · CPC title

• F05B2270/20

  to optimise the performance of a machine · CPC title

• F03B13/16 Primary

  using the relative movement between a wave-operated member, {i.e. a "wom"} and another member, {i.e. a reaction member or "rem"} · CPC title