Automatic Switching of HMI Screens Based on Process, Task, and Abnormal Deviation in a Power Plant

• US 20150066223A1
• Filed: 09/04/2013
• Published: 03/05/2015
• Est. Priority Date: 09/04/2013
• Status: Active Grant

• Current Assignee: GE Infrastructure Technology, LLC (GE Vernova, Inc.)
• Original Assignee: General Electric Company
• Inventors: Saraswat, Rohan, Kurella, Nagesh Laxminarayana, Loganathan, Karthikeyan
• Granted Patent: US 9,696,697 B2
• Time in Patent Office: Days
• US Class Current: 700/287
• 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: G05B 15/02 electric
• CPC Class Codes: G05B 23/0235 based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold

Abstract

Embodiments of the disclosure relate to automatic switching of HMI (human-machine interface) screens based on process, task, and abnormal deviation in a power plant. According to one embodiment, a method is provided. The method can include monitoring one or more processes occurring during the operation of a turbine power plant in a steady state monitoring sequence, in which a plurality of overview screens are monitored, and at least one process state is determined. If the at least one process state indicates a predefined condition has occurred, at least one human interface screen can be presented to a user for troubleshooting, based at least in part on the severity of the predefined condition. If the determined process state does not indicate the predefined condition is present, and the at least one determined process state indicates an automated task sequence, the method present a sequence of preconfigured task screens to a user.

Claims

1. A method of managing operation of a power plant, comprising:

monitoring one or more processes occurring during the operation of a turbine power plant in a steady state monitoring sequence in which a plurality of overview screens are monitored and at least one process state is determined;

if the at least one determined process state indicates a predefined condition is present, then at least one human interface screen is output to a user for troubleshooting, based at least in part on severity of the predefined condition, the at least one human machine interface screen conveying information related to operational status of components of the turbine power plant, the at least one human machine interface screen comprising operational controls to allow a user to take control of the one or more monitored processes; and

if the determined process state does not indicate a predefined condition is present, and if the at least one determined process state indicates an automated task sequence, then output a sequence of preconfigured task screens to a user.

2. The method of claim 1, wherein the one or more monitored processes comprise at least one of:

a process that operates a flow of fuel to the turbine power plant, a process that operates coolant storage, a process that operates air intake into a combustion chamber, a process that operates a compressor connected to a combustion chamber, a process that operates a combustion chamber, a process that operates a turbine, a process that operates exhaust flow of combusted fuel, a process that operates a generator connected to a turbine, or a process that operates a transformer connected to a generator.

3. The method of claim 1, wherein a severity of a detected predefined condition is determined by a prediction of a predefined condition based on the detected predefined condition.

4. The method of claim 3, wherein the prediction of a predefined condition is made based at least in part on a detected operational temperature of a component or a detected change in resistance in an electrical component.

5. The method of claim 4, wherein the prediction of a predefined condition is made based at least in part on a detected change in resistance in an electrical component.

6. The method of claim 1, further comprising, upon detecting the predefined condition, detecting a cooling water pump alarm.

7. The method of claim 6, further comprising opening a cooling water human interface screen.

8. The method of claim 7, wherein the cooling water human interface screen comprises status of a standby cooling water pump.

9. The method of claim 8, further comprising activating the standby cooling water pump.

10. The method of claim 9, further comprising acknowledging and resetting the cooling water pump alarm.

11. The method of claim 1, further comprising:

upon detecting an automated task sequence, opening a start check human interface screen.

12. The method of claim 11, further comprising initiating an automated task sequence from the start check human interface screen.

13. The method of claim 1, further comprising:

opening a synchronization human interface screen and initiating a synchronization process between two or more processes.

14. A control system for operating a combustion turbine power plant, comprising:

a monitoring system for monitoring one or more processes occurring during the operation of a turbine power plant in a steady state monitoring sequence in which a plurality of overview screens are monitored and at least one process state is determined;

a human interface system configured to, if the determined process state indicates a predefined condition is present, output at least one human interface screen to a user for troubleshooting, based at least in part on a severity of the detected predefined condition, the at least one human machine interface screen conveying information related to operational status of components of the turbine power plant, the at least one human machine interface screen presenting operational controls to allow a user to take control of the one or more monitored processes; and

if the determined process state does not indicate a predefined condition present, and if the determined process state indicates an automated task sequence, then output a sequence of pre-configured task screens to a user.

15. The control system of claim 14, wherein the display screen conveys an indication of a predefined condition prediction for at least one component.

16. The control system of claim 15, wherein the predefined condition prediction is based on operating temperature of a component or resistance in a component.

17. The control system of claim 15, wherein the component comprises a cooling water pump.

18. One or more computer-readable media containing instructions which, when executed by a processor, indicate detection of a predefined condition occurring in the operation of a turbine power plant by performing the operations of:

monitoring one or more processes occurring during the operation of the turbine power plant in a steady state monitoring sequence in which at least one overview screen is monitored and at least one process state is determined;

if the determined process state indicates a predefined condition present, then output at least one human interface screen to a user for troubleshooting, based at least in part on a severity of the detected predefined condition, the at least one human machine interface screen conveying information related to operational status of components of the turbine power plant, the at least one human machine interface screen presenting operational controls to allow a user to take control of the one or more monitored processes; and

if the determined process state does not indicate a predefined condition is present, and if the determined process state indicates an automated task sequence, then output a sequence of preconfigured task screens to a user.

19. The computer-readable media of claim 18, wherein severity of the predefined condition is determined by heat or resistance detected in a component in the plurality.

20. The computer-readable media of claim 19, wherein the component comprises a cooling water pump.