| 摘要 |
The invention relates to a method and a system for regulation of the rotational speed ( 52 ) of a rotor on a wind energy unit with a generator and a rotor blade. The first set parameter is a pitch angle (Pitch) of the rotor blade and the second set parameter is the torque of the generator. The system comprises a pitch angle control or regulation device ( 32 ), a torque control or regulation device ( 33 ), a first device for determination of a first rotational speed set value ( 28 ) (first rotational speed set value determination device ( 29 )) and a second device ( 26 ) for determination of a second rotational speed set value ( 29 ) (second rotational speed set value determination device ( 26 )). The first rotational speed set value ( 28 ) may be supplied to the pitch angle control or regulation device ( 32 ) and the second rotational speed set value ( 29 ) may be supplied to the torque control or regulation device ( 33 ), wherein the first and second rotational speed set value ( 28, 2 )) may be different from each other.
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