Control system

• US 9,376,964 B2
• Filed: 02/19/2013
• Issued: 06/28/2016
• Est. Priority Date: 02/20/2012
• Status: Expired due to Fees

• Current Assignee: Ansaldo Energia IP UK Limited (Ansaldo Energia SPA)
• Original Assignee: General Electric Technology GmbH (GE Aerospace)
• Inventors: Lang, Wolfgang, Zinn, Hanspeter, Bollhalder, Heinz, Antonanzas, Xabier
• Primary Examiner(s): Huynh, Phuong
• Application Number:
  US13/769,966
• Publication Number:
  US 20130212999A1
• Time in Patent Office: 1,225 Days
• US Class Current: 1/1
• CPC Class Codes: F01D 17/02 Arrangement of sensing elements
• CPC Class Codes: F01D 21/003 Arrangements for testing or measuring for measuring vibrations G01H
• CPC Class Codes: F02C 9/00 Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants controlling air intakes F02C7/057; controlling turbines F01D; controlling compressors F04D27/00; controlling in general G05
• CPC Class Codes: F05D 2260/80 Diagnostics
• CPC Class Codes: F05D 2260/84 Redundancy
• CPC Class Codes: F05D 2260/96 Preventing, counteracting or reducing vibration or noise
• CPC Class Codes: F05D 2270/083 by monitoring combustion conditions
• CPC Class Codes: F23N 2227/16 Checking components, e.g. electronic
• CPC Class Codes: F23N 5/24 Preventing development of abnormal or undesired conditions, i.e. safety arrangements F23N5/02 - F23N5/18 take precedence
• CPC Class Codes: G05B 19/0428 Safety, monitoring G05B19/0423 takes precedence
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y04S 20/20 End-user application control systems

Abstract

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.

Claims

1. A control system for at least one of steam turbines, gas turbines or power plants, the control system comprising:

a sensor system configured to monitor predefined operating parameters and including redundant sensors;

a central processor arrangement having 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 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;

wherein the sensor-side processor circuit is configured to transform the signals from a sensor operating in an error-free manner according to a predefined requirement profile of the central processor arrangement; and

wherein the sensor-side processor circuit is configured to control a display for reporting defective sensors.