Automatic storm protection control for wind energy system

Details Automatic storm protection control for wind energy system Automatic storm protection control for wind energy system

1979-05-14

1981-10-27

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With means positioning fluid current driven impeller...

Offset relative to flow direction

416140, F03D 704

Patent

active

042970750

ABSTRACT:
A wind energy plant is protected against damage from high winds by permitting the propeller assembly thereof to fold with respect to the tail assembly of the plant when the wind velocity with respect to the plant exceeds a predetermined value. Return of the propeller assembly to a wind facing orientation is controlled to prevent oscillating or whipping in gusty or turbulent winds. A safety system is included to control plant shutdown, and automatically shuts down the plant if the plant is being subjected to excessive vibration.

REFERENCES:
patent: 1698709 (1929-01-01), Bucklen et al.
patent: 1818672 (1931-08-01), Bucklen
patent: 1930390 (1933-10-01), Jacobs
patent: 2207964 (1940-07-01), Albers
patent: 2307622 (1943-01-01), Edens et al.
patent: 3891347 (1975-06-01), Jacobs et al.
patent: 4088420 (1978-05-01), Jacobs et al.

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