Patent ID: 11952980
Assignee: WOBBEN PROPERTIES GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 17:
18. The method as claimed in claim 1, comprising:
in an outer cascade of the pitch control, comparing, by a third closed-loop controller, a preset setpoint speed with the detected rotational speed and determining a second acceleration setpoint value based on comparing the preset setpoint speed with the detected rotational speed;
in an inner cascade of the pitch control, comparing, by a fourth closed-loop controller, the second acceleration setpoint value with the detected acceleration value and determining a manipulated variable for adjusting the blade angle based on comparing the second acceleration setpoint value with the detected acceleration value;
generating a control error based on comparing the second acceleration setpoint value with the detected acceleration value and modifying the control error using a control reserve; and
providing the modified control error to the fourth controller.