Teetered, tip-controlled rotor - Preliminary test results from Mod-O 100-kW experimental wind turbineA 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 indicates 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.
Document ID
19800044666
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Glasgow, J. C. (NASA Lewis Research Center Cleveland, OH, United States)
Miller, D. R. (NASA Lewis Research Center Cleveland, Ohio, United States)