Method for coupling a steam turbine and a gas turbine at a desired differential angle using a setpoint acceleration
AssigneeSiemens Aktiengesellschaft
InventorsMarc Borowski, Gerta Zimmer
Life of this patent
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Abstract
A method for coupling a rotating device, in particular a steam turbine, and a shaft device, in particular a gas turbine, having the following steps: detecting a differential angle between the shaft device and the rotating device; detecting a differential speed between the shaft device and the rotating device; predicting a coupling angle at which the rotating device and the shaft device would be coupled if the rotating device were accelerated with a known acceleration up to the start of the coupling-in; comparing the predicted coupling angle with a target coupling angle, and calculating therefrom a setpoint acceleration such that the predicted coupling angle matches the target coupling angle.
Claims15
A method for coupling a rotating device and a shaft device, comprising:
- detecting a differential angle between the shaft device and rotational device;
- detecting a differential speed between the shaft device and rotational device;
- predicting a coupling angle at which the rotational device and shaft device would be coupled if the rotational device were accelerated with a known acceleration up to a start of a coupling process;
- comparing the predicted coupling angle with a target coupling angle and calculating therefrom a setpoint acceleration in such a way that the predicted coupling angle corresponds to the target coupling angle.
An arrangement having a shaft device and a rotating device, having a clutch for coupling the shaft device and rotating device, comprising:
- a device for detecting a differential angle between the shaft device and rotating device;
- a device for detecting a differential speed between the shaft device and rotating device;
- a device for accelerating the rotating device with an acceleration value;
- a prediction module that predicts, from the detected differential angle, the detected differential speed and a known acceleration, a coupling angle which would occur if the rotating device were accelerated with the known acceleration up to a start of the coupling;
- and
- an acceleration module which compares the predicted coupling angle with a target coupling angle and calculates therefrom a setpoint acceleration such that the predicted coupling angle corresponds to the target coupling angle are present.
Dependencies are inferred from the claim text.