System and method for converting ocean wave energy into electricity

• US 7,737,569 B2
• Filed: 01/22/2008
• Issued: 06/15/2010
• Est. Priority Date: 10/24/2006
• Status: Expired due to Fees

• Current Assignee: Neptune Wave Power, LLC
• Original Assignee: Seadyne Energy Systems, LLC
• Inventors: Hench, Steven C.
• Primary Examiner(s): Patel; T C
• Assistant Examiner(s): Cuevas; Pedro J
• Application Number:
  US12/017,755
• Publication Number:
  US 20090127856A1
• Time in Patent Office: 875 Days
• Field of Search: 290/42, 290/53, 290/55
• US Class Current: 290/42
• CPC Class Codes: F03B 13/20 wherein both members , i.e. wom and rem are movable relative to the sea bed or shore
• CPC Class Codes: F05B 2250/411 in rotation
• CPC Class Codes: F05B 2250/44 one element moving inside another one, e.g. wave-operated member (wom) moving inside another member (rem)
• CPC Class Codes: Y02E 10/30 Energy from the sea, e.g. using wave energy or salinity gradient

Abstract

A system and method for harnessing power associated with ocean waves and converting that power into electricity. The apparatus is a buoy that houses a vertically oriented central shaft, a pendulum, a generator mechanism, and other components that synergistically operate to optimize power output of the buoy. Both the load on the pendulum and the effective length of the pendulum may be varied in response to changing environmental conditions. Also, the buoy may be part of a network that shares environmental data and a series of best tuning responses to that data, across the network. A library of environmental data and associated tuning responses is built at a central location and shared across the network.

Claims

1. An apparatus for optimizing power output associated with a pendulum rotating under the influence of wave motion, said apparatus comprising:

a measurement module for measuring environmental conditions;

a processing module for processing said measured environmental conditions and determining instructions, said instructions comprising a pendulum setting optimized according to said measured conditions;

a load variation mechanism for varying the load placed upon said pendulum to achieve said optimized setting; and

a length variation mechanism for varying the load placed upon said pendulum to achieve said optimized setting.

2. The apparatus of claim 1 further comprising:

a communication module for transmitting and receiving said measured environmental conditions and said determined instructions.

3. The apparatus of claim 1 wherein said determining instructions comprises retrieving said instructions from a central location.

4. The apparatus of claim 1 wherein said determining instructions comprises computing said instructions locally to said apparatus.

5. The apparatus of claim 1 wherein said measurement module and said processing module are contained in a central component, said central component being surrounded by a plurality of outer components.

6. The apparatus of claim 5 wherein said outer components are of a faceted design.

7. The apparatus of claim 5 wherein said central component and said plurality of outer components are detachably coupled to one another.

8. The apparatus of claim 1 further comprising a plurality of fins, said plurality of fins substantially inhibiting rotational motion of said apparatus.

9. The apparatus of claim 1 wherein said plurality of fins are detachably coupled to said apparatus.

10. A method of optimizing power output of a pendulum rotating under the influence of wave motion, said method comprising:

measuring environmental conditions;

determining an optimized pendulum setting for said measured conditions; and

varying the effective length of said pendulum or the resistance placed upon said pendulum to optimize power output of said pendulum according to said determined optimized pendulum setting.

11. The method of claim 10 wherein said determining an optimized pendulum setting comprises computing instructions to achieve said optimized setting locally to said pendulum.

12. The method of claim 10 wherein said determining an optimized pendulum setting comprises retrieving said setting from a centralized database.

13. The method of claim 10 wherein said determining an optimized pendulum setting comprises comparing said measured environmental conditions against environmental conditions stored in a database and deriving said setting based, at least in part, upon said comparison.

14. A power optimization network, said network comprising:

a first grid comprising a first plurality of buoys, sail first plurality of buoys comprising a pendulum for generating power under the influence of wave motion and a communication module for transmitting information relating to local environmental conditions; and

a first central station in communication with said first plurality of buoys, said first central location comprising a database for storing said transmitted local environmental conditions and optimized pendulum settings related to environmental conditions, and a communication module for transmitting instructions, said instructions comprising a pendulum setting optimized according to said local environmental conditions.

15. The network of claim 14 further comprising:

a second grid comprising a second plurality of buoys, sail second plurality of buoys comprising;

a pendulum for generating power under the influence of wave motion and a communication module for transmitting information relating to local environmental conditions; and

a second central station in communication with said second plurality of buoys, said second central location comprising;

a communication module for communicating with said first central station.