Siemens Aktiengesellschaft

Siemens Energy Global Gmbh & Co. Kg

Martin Bennauer

Andreas Schmidt

Christoph Schindler

Edwin Gobrecht

Matthias Heue

Gerta Zimmer

Martin Ophey

David Veltmann

Thorsten Engler

Andreas Pahl

Martin Stapper

Marc Borowski

Michael Winkel

Michael Nienhaus

Karsten Peters

Heribert Werthes

Dirk Wall

Susanne Haas

Marian-Peter Pieczyk

Martin Hallekamp

Ningsih Flohr

David Felwor

Dirk Weltersbach

Daniel Pieper

Michael Schütz

Oleg Vetrov

Patrick Becker

Mirko Dänner

Oliver Ricken

Özgür Korkmaz

Patrick Müller

Jürgen Havemann

A method for operating a steam turbine where steam turbine has at least two sub-turbines, wherein the steam turbine is paired with a steam turbine controller which has a sub-turbine controller for each of the sub-turbines, and each sub-turbine controller compares respective target values with respective actual values of the respective sub-turbine during operation in order to determine a respective control deviation for each sub-turbine.

Steam turbine control

A turbine control unit and method for controlling a turbine, in particular for controlling the start-up of a turbine, the unit being designed as a cascade controller having a master controller and an inner controller, the master controller being a thermal stress controller for the components subjected to thermal stress.

Turbine control unit comprising a thermal stress controller as a master controller

A method for testing an overspeed protection apparatus of a single-shaft system that includes: a) operating the system at nominal speed and under electrical load, wherein the load is selected to be low enough that, after dropping the load, the speed of the system rises such that the speed remains below steam turbine threshold speed lower than gas turbine threshold speed, such that first overspeed protection is triggered when the speed of the steam turbine reaches the steam turbine threshold speed, and second overspeed protection is triggered when the speed of the gas turbine reaches the gas turbine threshold speed; b) dropping the load; c) increasing the mass flow of the steam introduced into the steam turbine and/or of the fuel introduced into the gas turbine such that the speed of the steam turbine reaches the steam turbine threshold speed; d) testing whether the first overspeed protection is triggered.

Method for testing an overspeed protection apparatus of a single-shaft system

A method for testing an overspeed protection mechanism of a single-shaft combined-cycle plant that includes, during testing, an electrical load is first connected to the generator and the load is disconnected and a trigger threshold value can be achieved at a test moment in time, thereby triggering the overspeed protection mechanism.

Method for testing an overspeed protection mechanism of a single-shaft combined-cycle plant

A quick acting control valve for a steam turbine is provided. The quick acting control valve includes a valve box and a control valve cone which is arranged in the valve box so as to be displaceable along its center axis, whereby the control valve cone may be brought into an open position in which the control valve cone, with its control valve cone surface is lifted off the valve box and into a closed position in which the control valve cone rests against the valve box with its control valve cone surface, and a quick acting valve piston which is arranged in the valve box so as to face the back of the control valve cone facing away from the control valve cone surface, the quick acting control valve piston, on its outer peripheral edge, always resting on the valve box in a steam-tight manner.

Space-saving quick acting control valve for a steam turbine

A method for controlling a steam power plant is provided. The method includes the steps of providing a first signal showing a reduction of the current power level of the generator, generating a second signal showing a short circuit interruption as a function of the first signal, resetting the second signal after a predetermined time period and blocking the second signal for a predetermined period of time, stopping and subsequently starting the turbine as a function of the second signal, generating a third signal showing a load rejection as a function of the first signal, and permanently stopping the turbine as a function of the third signal. A device for controlling a steam power plant is also provided.

Method and device for controlling a steam power plant

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Bottrop, Germany

Martin Bennauer