Teetered, tip-controlled rotor: preliminary test results from MOD-0 100-kW experimental wind turbine
A series of tests is currently being conducted using the DOE/NASA 100 kW Experimental Wind Turbine with a two-bladed, teetered rotor with 30% span tip control. Preliminary evaluation test results indicate that the teetered rotor significantly decreases loads on the yaw drive mechanism and reduces blade cyclic flapwise bending moments by 25% at the 20% span location when compared to rigid hub rotor. The teetered hub performed well but did impact the teeter stops on occasion as wind speed and/or direction varied rapidly. The tip-controlled rotor performed satisfactorily with some expected loss of control when compared to the full span pitchable blade. The performance results indicate that a review of techniques used to calculate rotor power is in order.
- Research Organization:
- National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
- DOE Contract Number:
- EX-76-I-01-1028
- OSTI ID:
- 5695448
- Report Number(s):
- DOE/NASA/1028-80/26; NASA-TM-81445; CONF-800406-4
- Resource Relation:
- Conference: Wind energy conference, Boulder, CO, USA, 9 Apr 1980
- Country of Publication:
- United States
- Language:
- English
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