Wind turbine rotor control system

Details Wind turbine rotor control system Wind turbine rotor control system

1982-02-24

1984-03-06

Truhe, J. V.

Prime-mover dynamo plants

Electric control

Fluid-current motors

290 55, 416135, F03D 704

Patent

active

044356463

ABSTRACT:
In a pitch control system for a wind turbine, a mechanical control system changes pitch angle of the rotor blades collectively in response to blade pitch moment. The control system is designed to be used with a downwind constant speed two-bladed horizontal axis teetering hub wind turbine. Pitch placement controls torque for a synchronous alternator connected to the electrical power grid. The pitch control system is manually lockable from the ground in run or shutdown modes. An automatic shutdown mode provides fullfeathering for protection from large amplitude vibrations or loss of the electrical grid.

REFERENCES:
patent: 2547636 (1951-04-01), Fumagalli
patent: 4006925 (1977-02-01), Scherer
patent: 4324528 (1982-04-01), Svenning
patent: 4333018 (1982-06-01), Bottrell
patent: 4366387 (1982-12-01), Carter, Jr. et al.

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