Predicted motion wind turbine tower damping

Details Predicted motion wind turbine tower damping Predicted motion wind turbine tower damping

1982-04-02

1984-03-06

Truhe, J. V.

Prime-mover dynamo plants

Electric control

Fluid-current motors

290 55, 416 30, 416 35, 416 41, 416 43, F03D 900, F03D 704

Patent

active

044356471

ABSTRACT:
Damping of the primary bending mode of a tower (12) mounting a wind turbine having a control (36) for providing a pitch blade angle reference signal (40) to modulate the pitch of the turbine blades (1) through a pitch change mechanism (38) for constant power is provided by generating the pitch blade angle reference signal as the integral (104) of the summation (266) of a torque/power controlling blade pitch angle reference rate signal (98) with an estimated acceleration signal (255) generated by filtering (250, 252, 254) the blade pitch angle reference signal (40) with the following transfer function ##EQU1##

REFERENCES:
patent: 4160170 (1979-07-01), Harner et al.
patent: 4161658 (1979-07-01), Patrick
patent: 4189648 (1980-02-01), Harner
patent: 4193005 (1980-03-01), Kos et al.

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