SYSTEMS AND METHODS FOR TURBINE CONTROL SIMULATION

• US 20080168092A1
• Filed: 01/10/2007
• Published: 07/10/2008
• Est. Priority Date: 01/10/2007
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Boggs, Kenneth Warren, Ahmed, Anwar, P.K., Balagopalan, Gopalakrishna, Sandeep, Udupa, Chetan Sooryanarayan, Minto, Karl Dean, Morton, Gregory John, Synard, Clayton Joseph
• Application Number:
  US11/621,836
• Publication Number:
  US 20080168092A1
• Time in Patent Office: Days
• US Class Current: 707/104.1
• CPC Class Codes: G05B 17/02 electric
• CPC Class Codes: G06F 30/33 Design verification, e.g. functional simulation or model checking

Abstract

Systems and methods for simulating dynamic feedback control systems that include establishing a connection via a common access to a shared memory between the control system logic of a controller to be emulated and a simulation model. State data from a previous simulation associated with the control system logic and the simulation model is retrieved from memory to initialize another simulation run. The state data associated with the simulation model and the control system logic are then synchronized with a timing and control mechanism and a simulation of the controller is executed. A graphical user interface may also be provided to allow a user to adjust the simulation settings and establish new connections with input/output components to be utilized in simulation.

Claims

1. A method of simulating dynamic feedback control systems comprising:

establishing a connection via a common access to a shared memory between at least a portion of control system logic of a controller and a simulation model;

retrieving a plurality of state data associated with the control system logic and the simulation model, wherein the state data is associated with a previous simulation;

synchronizing the plurality of state data associated with the control system logic and the simulation model with a timing and control mechanism; and

executing a simulation of the controller.

2. The method of claim 1, further comprising:

upon executing the simulation of the controller, updating at least a portion of the state data associated with the simulation model and the control system logic; and

storing the updated state data in a database.

3. The method of claim 1, further comprising:

prior to executing a simulation of the controller, accepting commands from a graphical user interface for adjusting at least a portion of the state data associated with the simulation of the controller.

4. The method of claim 1, further comprising:

prior to executing a simulation of the controller, accepting commands from a graphical user interface for adjusting at least one control system setting associated with the simulation of the controller.

5. The method of claim 1, further comprising:

accepting commands from a graphical user interface for performing a regression analysis on at least a portion of the state data to predict future simulation results.

6. The method of claim 1, further comprising:

accepting commands from a graphical user interface for plotting simulation data associated with the simulation model.

7. The method of claim 1, wherein the execution of the simulation of the controller including stepping from a specified starting step to a specified end step and then stopping and waiting for the next command or calling program.

8. A method of preparing a simulation dynamic feedback control systems comprising:

establishing a connection via a common access to a shared memory between at least a portion of control system logic of the controller and a simulation software, wherein the simulation software includes a simulation model;

accepting commands received from a graphical user interface to establish a connection of the input/output (I/O) components between the at least a portion of control system logic and the simulation software;

detecting an error in the (I/O) component connection;

identifying input and output signal naming mismatches associated with the error; and

correcting the input and output signal naming mismatches.

9. The method of claim 8, further comprising:

retrieving a plurality of state data associated with the at least a portion of control system logic and the simulation model, wherein the state data is associated with a previous simulation;

synchronizing the simulation model and the control system logic; and

executing a simulation.

10. The method of claim 8, further comprising:

upon executing the simulation, updating at least a portion of the state data associated with the simulation model and the control system logic; and

storing the updated state data in a database.

11. The method of claim 8, further comprising:

accepting commands from a graphical user interface for adjusting the state data associated with the simulation.

12. The method of claim 8, further comprising:

prior to executing a simulation, accepting commands from a graphical user interface for adjusting at least one control system setting associated with the simulation.

13. The method of claim 8, further comprising:

accepting commands from a graphical user interface for performing a regression analysis on at least a portion of the state data to predict future simulation results.

14. The method of claim 8, further comprising:

accepting commands from a graphical user interface for plotting simulation data associated with the simulation model.

15. The method of claim 8, wherein the execution of the simulation including stepping from a specified starting step to a specified end step and then stopping and waiting for the next command or calling program.

16. A system for simulating dynamic feedback control systems comprising:

simulation software in communication with shared memory, wherein the simulation software includes a simulation model;

at least a portion of control system logic associated with a controller in communication with the shared memory, wherein the shared memory establishes a connection via a common access to at least a portion of the control system logic of the controller and the simulation software;

a database in communication with the simulation software and controller, wherein a plurality of state data associated with the control system logic and the simulation model is stored in the database; and

a timing and control mechanism in communication with the controller and the simulation software, wherein the timing and control mechanism synchronizes the simulation software and the at least a portion of the control system logic.

17. The system of claim 16, wherein the control system logic of the controller is hosted on the same operating system as the simulation model.

18. The system of claim 16, further comprising a graphical user interface in communication with the at least a portion of the control system logic for accepting user commands configuring or executing the simulation.

19. The system of claim 18, wherein the graphical user interface includes a watch window menu, wherein the watch window plots live data associated with one or more simulation variables.

20. The system of claim 18, wherein the graphical user interface includes an interactive simulation menu, wherein the interactive simulation menu provides the option of increasing or decreasing a step size associated with the state data of the simulation.