Alstom Technology Limited

General Electric Technology Gmbh

Ansaldo Energia IP UK Limited

Heinz Bollhalder

Hanspeter Zinn

Wolfgang Lang

Michael Habermann

Xabier Antonanzas

A control system for at least one of steam turbines, gas turbines or power plants includes a sensor system configured to monitor predefined operating parameters, the sensor system including redundant sensors. A central processor arrangement of the control system has an input side configured to receive measurement data from the sensor system and an output side configured to communicate with operation control elements of the turbines or power plants. A sensor side processor circuit is assigned at least to the redundant sensors, the processor circuit being configured to continuously check the sensors for error-free operation, to protect or block the input side of the central processor arrangement from erroneous signals, and to only respectively forward or further process signals from a sensor that has been identified as error-free in one channel.

Control system

In a process for protection of a gas turbine () from damage caused by pressure pulsations (P), pressure pulsations (P) occurring during the operation of the gas turbine () are measured, from the measured pressure pulsations (P), a pulsation-time signal (PZS) is generated, the pulsation-time signal (PZS) is transformed into a pulsation-frequency signal (PFS), from the pulsation-frequency signal (PFS), a pulsation level (PL) is determined for at least one specified monitoring frequency band (), the pulsation level (PL) is monitored for the occurrence of at least one specified trigger condition, and, when the at least one trigger condition occurs, a specified protective action () is carried out.

Protection process and control system for a gas turbine

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Doettingen, Switzerland

Heinz Bollhalder