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The application of hydraulics in the 2,000 kW wind turbine generatorA 2000 kW turbine generator using hydraulic power in two of its control systems is being built under the management of NASA Lewis Research Center. The hydraulic systems providing the control torques and forces for the yaw and blade pitch control systems are discussed. The yaw-drive-system hydraulic supply provides the power for positioning the nacelle so that the rotary axis is kept in line with the direction of the prevailing wind, as well as pressure to the yaw and high speed shaft brakes. The pitch-change-mechanism hydraulic system provides the actuation to the pitch change mechanism and permits feathering of the blades during an emergency situation. It operates in conjunction with the overall windmill computer system, with the feather control permitting slewing control flow to pass from the servo valve to the actuators without restriction.
Document ID
19790043387
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Onufreiczuk, S.
(General Electric Co., Space Div., Valley Forge Pa., United States)
Date Acquired
August 9, 2013
Publication Date
July 1, 1978
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: National Conference on Fluid Power and Power Transmission
Location: Philadelphia, PA
Start Date: November 7, 1978
Accession Number
79A27400
Funding Number(s)
CONTRACT_GRANT: NAS3-20058
Distribution Limits
Public
Copyright
Other

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