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US 11,081,990 B2Granted
Method for operating a steam turbine
AssigneeSiemens Energy Global GmbH & Co. KG
InventorsMatthias Kowalski, Roland Sievert
Life of this patent
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Abstract
A method for operating a steam turbine, wherein the pressure of the cooling medium in the generator is changed not only for cooling but also for increasing or decreasing the torque of the generator on the steam turbine, this being utilized for the purpose of the start-up or shut-down process.
Claims9
A method for operating a steam turbine, wherein the steam turbine has a rotatably mounted steam turbine rotor and a housing which is arranged around the steam turbine rotor, wherein the rotor is coupled in terms of torque to a generator rotor of an electrical generator, the method comprising:
- cooling the generator with a cooling medium, wherein a cooling pressure of the cooling medium in the generator is set,
- exerting a torque by the generator rotor on the steam turbine rotor,
- changing the torque from the generator rotor to the steam turbine rotor by means of a change in the cooling pressure.
Dependencies are inferred from the claim text.