Siemens Aktiengesellschaft

Siemens Energy Global Gmbh & Co. Kg

Innomotics Gmbh

Gerta Zimmer

Matthias Heue

Stefan Riemann

Sebastian Zahn

Edwin Gobrecht

Andreas Ulma

Andrey Mashkin

Matthias Kowalski

Ralf Bell

Martin Bennauer

Robin Burzan

Christian Jäkel

Esteban Grau Sorarrain

Mario Koebe

Henning Almstedt

Marc Borowski

Christoph Schindler

Ulrich Beul

Kai Brune

Florian Röhr

Klaus Rothe

Benedikt Hofmeister

Michael Löhr

Andreas Schaarschmidt

Rudolf Schlehuber

Reinhard Lehnst

Daniel Pieper

Alexander Münnekhoff

Patrick Becker

Mirko Dänner

Jürgen Havemann

Florian Hiss

The invention relates to a control system for reducing rotor vibrations, in particular the variability thereof, in shafting, in particular turbine shafting, in which the temperature of the bearing () of the shaft is measured and the oil () supplied to the bearing is adjusted to a temperature as is assigned as the output variable in an allocation for minimised rotor vibrations with the measured temperature of the bearing as the input variable. The allocation can, for example, be provided by an initial measurement of the rotor vibrations or by a self-learning system. According to the invention, the variability of the rotor vibrations is restricted.

Control system for adjusting the temperature of bearing oil for the purpose of minimizing rotor vibrations

A steam-turbine unit has a steam turbine and an option for cooling the steam turbine by forced cooling, wherein cooling air is drawn through the steam turbine via a suction device and a drainage line of the live-steam valve is used as the access option.

Method for cooling down a steam turbine

A method for synchronising a turbine with an AC network having a network frequency, having the following steps: A) accelerating the turbine up to a stated rotational speed, without taking into consideration a difference angle between the turbine and the AC network; B) detecting a difference angle between the turbine and the AC network; C) accelerating or decelerating the turbine in such a way that the differential speed follows a target trajectory, wherein the target trajectory is a trajectory that indicates a target rotational speed depending on the detected difference angle, such that a target angular position that is suitable for a synchronous supply is achieved between the turbine and AC network.

Synchronising a turbine with an AC network according to a target trajectory for the target difference angle

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.

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

A method and an associated arrangement for coupling a rotational device, particularly a steam turbine, and a shaft device, particularly a gas turbine, includes the following steps: 1) accelerating the rotational device up to an output rotational speed that is below the rotational speed of the shaft device; 2) detecting a differential angle between the shaft device and the rotational device; and 3) accelerating the rotational device with an acceleration value that is derived from the target rotational speed difference, which is formed as a function of the detected differential angle, the acceleration and a desired target coupling angle.

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

A method and associated control device for synchronizing a turbine with an alternating current network having a network frequency, having the following steps: A) accelerating the turbine up to a frequency in the range of the network frequency; B) sensing an angle difference between the turbine and the alternating current network; C) sensing a speed difference between the turbine and the alternating current network; D) accelerating or decelerating the turbine such that the turbine follows a desired trajectory, wherein the desired trajectory is a trajectory calculated in advance that indicates, in dependence on the angle difference, a desired speed difference that should be present such that a target angular position between the turbine and the alternating current network suitable for synchronous feed-in is achieved when the speed of the turbine and the speed of the alternating current network correspond.

Method and control device for synchronizing a turbine with the current network

A method is provided for carrying out a sound test for detecting and/or analyzing material faults and/or mounting faults of at least one component, in which the component is excited, by striking, to experience vibrations which generate soundwaves, after which the generated soundwaves are detected and conclusions are drawn about material faults and/or mounting faults on the basis of the detected soundwaves, wherein the striking of the component and the detection of the vibrations are carried out using an endoscope device. In addition, embodiments of the present invention relates to an endoscope device which is configured to carry out the method.

Method for carrying out a sound test of atleast one component and endoscope device used for the same

A method is for the continuous control of a position of a control valve. A control deviation from a position of the control valve, is determined as a controlled variable, in relation to a reference variable being determined. A manipulated variable is determined from the control deviation, by which manipulated variable the control valve is positioned and/or maintained in the position predefined by the reference variable. The improved method for the control of the position of a control valve, has the effect that failure of a valve position transmitter does not result in failure of the position control loop.

Method for the continuous control of a position of a control valve

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Mülheim an der Ruhr, Germany

Gerta Zimmer