Wind turbine maximum power tracking device

Details Wind turbine maximum power tracking device Wind turbine maximum power tracking device

1982-09-28

1985-06-25

Shoop, William M.

Prime-mover dynamo plants

Electric control

Fluid-current motors

322 35, F03D 902, H02P 914

Patent

active

045256330

ABSTRACT:
A method and apparatus for controlling the level of power transferred through a stand-alone wind power generating system utilizing a wind turbine whose output is converted to electrical power by means of an induction generator are disclosed. In the disclosed system, the velocity of the wind incident upon the blade of the turbine is sensed by a velocity sensor. This information is then used to vary the excitation frequency applied to the generator to adjust the shaft speed of the turbine in proportion to the change in wind velocity. The excitation frequency is adjusted in accordance with a control algorithm so that the power output of the system is equal to a maximum fraction of available wind power at wind velocities below a pre-determined power/velocity point.

REFERENCES:
patent: 4177414 (1979-12-01), Roesel, Jr. et al.
patent: 4198572 (1980-04-01), Kant
patent: 4228361 (1980-10-01), Jacobs et al.
patent: 4331881 (1982-05-01), Soderholm et al.
patent: 4421967 (1983-12-01), Birbel et al.

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