Horizontal axis wind turbine and method for controlling...

Details Horizontal axis wind turbine and method for controlling... Horizontal axis wind turbine and method for controlling...

2006-08-08

2006-08-08

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With means positioning fluid current driven impeller...

C416S041000, C416S061000, C415S004300, C073S170010

Reexamination Certificate

active

07086835

ABSTRACT:
A horizontal axis wind turbine includes: a yaw sensor; a rotor rotating around a rotor axis extending in a substantially horizontal direction, the rotor axis rotating in a substantially horizontal plane depending on wind direction; a plate-like member disposed on a rotational central portion of the rotor and extending in a parallel direction to the rotor axis and in a vertical direction; two anemometers disposed at positions which are across the plate-like member; and a controller for yaw control based on a difference or a ratio between wind speeds measured by the two anemometers.

REFERENCES:
patent: 3686937 (1972-08-01), Corey
patent: 4024761 (1977-05-01), Djorup
patent: 4550259 (1985-10-01), Bertels
patent: 858 530 (1952-12-01), None
patent: 0 083 819 (1983-07-01), None
Nordex AG “Products & Service Onshore N50,” 2 pages, Nordex AG, online file://c:img id="CUSTOM-CHARACTER-00001" he="3.13mm" wi="2.12mm" file="US07086835-20060808-P00001.TIF" alt="custom character" img-content="character" img-format="tif" ?My%20Documentsimg id="CUSTOM-CHARACTER-00002" he="3.13mm" wi="2.12mm" file="US07086835-20060808-P00002.TIF" alt="custom character" img-content="character" img-format="tif" ?taskimg id="CUSTOM-CHARACTER-00003" he="3.13mm" wi="2.12mm" file="US07086835-20060808-P00003.TIF" alt="custom character" img-content="character" img-format="tif" ?F1063img id="CUSTOM-CHARACTER-00004" he="3.13mm" wi="2.12mm" file="US07086835-20060808-P00004.TIF" alt="custom character" img-content="character" img-format="tif" ?IDS1,htm.

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