초록 ▼

A power generating system includes a wind turbine driven generator, the wind turbine having a wind turbine driven rotor with a variable pitch angle blade. Stresses on the system during startup and shutdown are minimized by scheduling the blade angle as a function of the rotor speed and wind velocity

A power generating system includes a wind turbine driven generator, the wind turbine having a wind turbine driven rotor with a variable pitch angle blade. Stresses on the system during startup and shutdown are minimized by scheduling the blade angle as a function of the rotor speed and wind velocity to provide a minimum blade angle relative to the fully powered blade angle during rotor acceleration, and to provide a minimum blade angle relative to the fully powered blade angle during rotor deceleration.

대표청구항 ▼

In a power generating system including a wind turbine driven source of energy, said wind turbine having a wind driven rotor with a plurality of variable pitch blades, a control for minimizing mechanical stresses in said system during rapid angular momentum changes of said rotor such as during startu

In a power generating system including a wind turbine driven source of energy, said wind turbine having a wind driven rotor with a plurality of variable pitch blades, a control for minimizing mechanical stresses in said system during rapid angular momentum changes of said rotor such as during startup and shutdown comprising: means for sensing a rotational speed of said system and producing a first signal indicative thereof, means for sensing the velocity of the wind driving said rotor and producing a second signal indicative thereof, scheduling means receiving said first and second signals and producing as a function thereof a desired blade pitch angle signal, and blade pitch angle control means receiving said desired blade pitch angle signal and responsive thereto for regulating the pitch angle of said rotor blades.