Method and system for regulation of rotational speed of rotor on wind energy unit with generator and energy blade using pitch angle control device and torque control device to determine rotational speed set values

摘要

The first set parameter is a pitch angle of the rotor blade and the second set parameter is the torque of the generator. Said system comprises a pitch angle control or regulation device (32), torque control or regulation device (33), first device for determination of first rotational speed set value (28) and second device (26) for determination of second rotational speed set value (29). The first rotational speed set value may be supplied to the pitch angle control or regulation device and the second rotational speed set value may be supplied to the torque control or regulation device wherein the first and second rotational speed set values may be different from one another.