Wind turbine shutdown system

Details Wind turbine shutdown system Wind turbine shutdown system

F - Mech Eng,Light,Heat,Weapons

03

D

170/28

F03D 7/02 (2006.01)

Patent

CA 1292949

Abstract Wind Turbine Shutdown System According to the invention, a wind turbine 10 incorporates a wind vane 105 which mechanically controls a valve 100 that directs the output of a turbine driven hydraulic pump 75 to yaw the turbine out of the wind upon a loss of system power or load. The turbine yaws out of the wind at an angular rate that is roughly proportional to rotor speed so that excessive teeter amplitudes are not encountered. The mechanically driven pump advantageously provides power to yaw the rotor out of the wind even if all electrical power is lost.

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