Method for operating an industrial scale installation and guidance system for same

• US 7,987,080 B2
• Filed: 03/02/2007
• Issued: 07/26/2011
• Est. Priority Date: 09/29/2006
• Status: Active Grant

• Current Assignee: Siemens Energy Global GmbH & Co. KG (Siemens AG)
• Original Assignee: Siemens AG
• Inventors: Römpke, Arno, Kunze, Ulrich
• Primary Examiner(s): FREJD, RUSSELL WARREN
• Application Number:
  US12/311,385
• Publication Number:
  US 20100023175A1
• Time in Patent Office: 1,607 Days
• Field of Search: 703/6, 703/7, 700/11, 700/21, 700/117, 702/33, 702/34, 702182-185
• US Class Current: 703/7
• CPC Class Codes: G05B 23/0251 Abstraction hierarchy, e.g. "complex systems", i.e. system is divided in subsystems, subsystems are monitored and results are combined to decide on status of whole system
• CPC Class Codes: G07C 3/08 Registering or indicating the production of the machine either with or without registering working or idle time

Abstract

A method and a guidance system for operating an industrial scale installation, especially a power plant installation, are provided. For this method and guidance system a number of installation operating parameters characterizing the operating state of the installation and several component operating parameters of selected components of the installation are monitored and stored in a memory device. A characteristic fatigue value characterizing the current fatigue state of each component is determined, as required, using the stored installation operating parameters and/or the stored associated component operating parameters. The purpose of this method and guidance system is to develop an operation of the installation which protects resources. To this end, an associated fatigue prognosis value is determined from the characteristic fatigue value characterizing the current fatigue state for each selected component using guiding parameters characterizing a planned change of state.

Claims

1. A method for operating an industrial scale installation, comprising:

monitoring a component operating parameter for a component of the industrial scale installation;

monitoring an installation operating parameter for an operating state of the industrial scale installation;

storing the component operating parameter in a storage facility;

storing the installation operating parameter in the storage facility;

determining a characteristic fatigue value for a current fatigue state of the component using the installation operating parameter and/or the component operating parameter;

determining a predicted fatigue value for the component using the characteristic fatigue value and a plurality of guidance parameters from a planned change of state of the installation;

identifying a guide component as the component with the highest predicted fatigue value;

determining the predicted fatigue value of the guide component for each of a plurality of planned state changes;

selecting one of the planned state changes based on the predicted fatigue value; and

initiating the selected planned state change.

2. The method as claimed in claim 1, wherein the industrial scale installation is a power plant installation.

3. The method as claimed in claim 1, wherein the component operating parameter includes at least one of the parameters selected from the group consisting of ambient pressure, ambient temperature and ambient humidity of the component.

4. The method as claimed in claim 3, wherein when determining the characteristic fatigue value and/or the predicted fatigue value each component operating parameter of the component is used.

5. The method as claimed in claim 4, wherein the component operating parameter includes at least one of the parameters selected from the group consisting of material data, a plurality of geometric dimensions of the component, a position data of a temperature measuring point for a fatigue calculation, and a pressure measuring point of relevance for a fatigue calculation.

6. The method as claimed in claim 1, wherein the installation operating parameter includes at least one of the parameters selected from the group consisting of an installation switching state and a target output.

7. The method as claimed in claim 1, wherein a plurality of trend curves for a temperature value and/or a pressure value of the component are used to determine the predicted fatigue value.

8. The method as claimed in claim 7, wherein the plurality of trend curves are determined from a thermodynamic simulation of the industrial scale installation.

9. The method as claimed in claim 1, wherein the predicted fatigue value of the guide component is used as a criterion for initiating a repair or a maintenance measure.

10. The method as claimed in claim 1,

wherein a set of predicted fatigue values is determined respectively for a plurality of planned state changes, and

wherein one of the state changes is selected and initiated based on the set of predicted fatigue values.

11. A guidance system for an industrial scale installation of a power plant installation, comprising:

a storage facility;

a component;

a component operating parameter;

an installation operating parameter; and

an evaluation unit,

wherein the installation operating parameter and the component operating parameter are stored in the storage facility, and

wherein the storage facility is connected to the evaluation unit on a data side, and

wherein the evaluation unit determines a predicted fatigue value for the component based on a characteristic fatigue value and a plurality of guidance parameters from a planned change of state of the installation, identifies a guide component as the component with the highest predicted fatigue value, and determines a guide component predicted fatigue value for a plurality of planned state changes.

12. A guidance system for an industrial scale installation of a power plant installation as claimed in claim 11, wherein the power plant installation is equipped with a plurality of measuring points and/or sensors that monitor each of the component operating parameters.

13. A guidance system for an industrial scale installation of a power plant installation as claimed in claim 11, further comprising a measurement value capturing unit which is connected on an input side to the measuring points and/or sensors and connected to the evaluation unit on an output side to which the measurement value capturing unit transfers the component operating parameter.

14. A guidance system for an industrial scale installation of a power plant installation as claimed in claim 11, wherein the component operating parameter includes at least one of the parameters selected from the group consisting of ambient pressure, ambient temperature and ambient humidity of the component.

15. A guidance system for an industrial scale installation of a power plant installation as claimed in claim 14, wherein when determining the characteristic fatigue value and/or the predicted fatigue value each component operating parameter of the component is used.

16. A guidance system for an industrial scale installation of a power plant installation as claimed in claim 15, wherein the component operating parameter includes at least one of the parameters selected from the group consisting of material data, a plurality of geometric dimensions of the component, a position data of a temperature measuring point for a fatigue calculation, and a pressure measuring point of relevance for a fatigue calculation.

17. A guidance system for an industrial scale installation of a power plant installation as claimed in claim 11, wherein the installation operating parameter includes at least one of the parameters selected from the group consisting of an installation switching state and a target output.

18. A guidance system for an industrial scale installation of a power plant installation as claimed in claim 11, wherein a plurality of trend curves for a temperature value and/or a pressure value of the component are used to determine the predicted fatigue value.

19. A guidance system for an industrial scale installation of a power plant installation as claimed in claim 18, wherein the plurality of trend curves are determined from a thermodynamic simulation of the industrial scale installation.