Method of Control for a Process Control System, and Control System for Controlling an Industrial Process

• US 20110264243A1
• Filed: 08/12/2008
• Published: 10/27/2011
• Est. Priority Date: 08/14/2007
• Status: Abandoned Application

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Schroff, Denis, Walz, Horst, Kunze, Ulrich
• Application Number:
  US12/673,352
• Publication Number:
  US 20110264243A1
• Time in Patent Office: Days
• US Class Current: 700/30
• CPC Class Codes: G05B 13/041 in which a variable is automatically adjusted to optimise the performance

Abstract

A method of control for a process control system and an appropriate control system is provided. Model calculations are integrated into the process control system such that the setpoint values calculated using the model calculations are processed further like measured values in the process control system, and control commands are derived from the measured values and/or setpoint values. The model calculations are integrated into the process control system using an adaptation program. The adaptation program includes program code and associated data from the model calculations and, in comparison with the other program components of the process control systems, is designed like a program component of the process control system. Within the adaptation program, the interfaces of the adaptation program match those of the model calculations.

Claims

1-10. -10. (canceled)

11. A method of control for a process control system, comprising:

obtaining a plurality of measured values of the process to be controlled;

verifying the plurality of measured values in the process control system;

deriving control commands from the plurality of measured values; and

integrating model calculations into the process control system,

wherein a plurality of setpoint values, calculated using the model calculations, are further processed in the process control system as measured values, and

wherein the control commands are derived automatically from the plurality of setpoint values following the verification of the plurality of setpoint values in the process control system.

12. The method as claimed in claim 11,

wherein an adaptation program is used to integrate the model calculations into the process control system, and

wherein the adaptation program includes a program code and associated data from the model calculations,

wherein the adaptation program, in relation to other program components of the process control system, is embodied as a program component of the process control system, and

wherein a first plurality of interfaces of the adaptation program are adapted to a second plurality of interfaces for the model calculations.

13. The method as claimed in claim 11,

wherein the program code and associated data from the model calculations are embedded into the program component of the process control system,

wherein the program component takes a form of a process periphery for timed processing of calculation functions and exhibits the same interfaces as the other program components, and

wherein a bidirectional data transfer is defined as an interface, whereby the program code for the model calculations is incorporated unchanged into a further program code in the process control system.

15. The method as claimed in claim 11,

wherein the model calculations take the form of thermodynamic calculations for a power generation process, and

wherein the process control system takes the form of a control system for process automation in power stations.

14. The method as claimed in 11, wherein the program code and associated data from the model calculations take the form of new program components in the process control system, whereby the second plurality of interfaces for the model calculations are adjusted to the model calculations.

16. A control system for optimized management of an industrial process, comprising:

a plurality of measured values included from the industrial process to be controlled;

a plurality of control commands; and

a plurality of setpoint values calculated from model calculations,

wherein the plurality of measured values are verified,

wherein the plurality of control commands are derived from the plurality of measured values using software,

wherein the software includes a program component into which a model calculation module is integrated in such a way that the plurality of setpoint values are subjected to further processing in the control system and handled as measured values, and

wherein following the verifying of the plurality of setpoint values in the control system, control commands are derived automatically from the plurality of setpoint values.

17. The control system as claimed in claim 16, wherein a means for embedding the program code and associated data from the model calculations is included, so that the program code and associated data from the model calculations are incorporated unchanged into the program component of the control system.

18. The control system as claimed in claim 17,

wherein the means for embedding the program code and associated data from the model calculations takes a form of an adaptation program which includes the program code and associated data from the model calculations,

wherein externally the adaptation program takes the foam of the program component in the process control system, and

wherein internally the adaptation program is adapted to the model calculations.

19. The control system as claimed in claim 18, wherein the program component takes the form of a process periphery for timed processing of calculation functions and exhibits the same interfaces as the other program components, whereby bidirectional data transfer is defined as an interface.

20. The control system as claimed in claim 16, wherein a new program component is created for the control system, whereby a plurality of interfaces in the model calculations are adjusted in accordance with the model calculations and a bidirectional data transfer is defined as the interface.