Method for coupling a steam turbine and a gas turbine at a desired differential angle using a setpoint acceleration

US10690012B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Marc Borowski · Moers, DE
• Gerta Zimmer · Mülheim an der Ruhr, DE

Key dates

• Filing date: Apr 20, 2017
• Grant date: Jun 23, 2020
• Expiry date: May 23, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2500/70416
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

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.