Granted Patent B2

US 8,180,622 · App. 11/923,081 · Granted May 15, 2012

Abstract

Claims (48)

1. A system for real-time modeling of electrical system performance, comprising:

a data acquisition component communicatively connected to one or more sensors configured to acquire real-time data output from one or more components of an electrical system, wherein the one or more components comprise at least one of a transformer, electrical line, reactor, capacitor, synchronous machine, induction machine, compensator, motor operated valve, turbine, fault isolation unit, and bus transfer unit;

an analytics server communicatively connected to the data acquisition component, comprising,

a virtual system modeling engine configured to generate predicted data output for the electrical system utilizing a first virtual system model of the electrical system,

an analytics engine configured to

monitor the real-time data output and the predicted data output of the electrical system,

determine a difference between the real-time data output and the predicted data output, and,

if the difference exceeds a first threshold but does not exceed a second threshold, initiate a calibration and synchronization operation to update the first virtual system model in real-time during normal operation of the electrical system to provide predicted data output that is consistent with the real-time data output, and

a power system simulation engine configured to store and process patterns observed from the real-time data output and the predicted data output, the power system simulation engine further configured to operate in a scenario builder mode to facilitate modification of parameters on the first virtual system model to create a second virtual system model and to forecast an aspect of the electrical system operating under the modified parameters of the second virtual system model; and

a client terminal communicatively connected to the power system simulation engine, the client terminal configured to allow a system administrator to modify the parameters of the first virtual system model when the power system simulation engine is operating in the scenario builder mode and display a report of the forecasted aspects.

2. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the power analytics simulation engine includes,

an associative memory layer,

a sensory layer, and

a neocortical model.

3. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the modified parameters include a selection of electrical system components and component operational parameters.

4. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the modified parameters include a selection of contingency events that the virtual system model is subjected to during the simulation.

5. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the modified parameters include a selection of remedial systems for correcting problems with electrical system performance.

6. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the modified parameters include a selection of electrical system and load point reliability indices.

7. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the modified parameters include a selection of power load set points.

8. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the aspect is a predicted ability of the electrical system to maintain an acceptably high level of power quality.

9. The system for real-time modeling of electrical system performance, as recited in claim 4 , wherein the aspect is a predicted ability of the electrical system to maintain an acceptably high level of power quality when subjected to a contingency event.

10. The system for real-time modeling of electrical system performance, as recited in claim 8 , wherein the power quality level is high when the electrical system maintains a voltage and frequency output within defined tolerance limits.

11. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the aspect is the predicted total power system capacity for the electrical system.

12. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the aspect is a predicted ability of the electrical system to maintain sufficient active and reactive power reserves in the electrical system.

13. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the aspect is a predicted ability of the electrical system to maintain a minimum level of electrical system reliability and availability.

14. The system for real-time modeling of electrical system performance, as recited in claim 4 , wherein the aspect is a predicted ability of the electrical system to maintain a minimum electrical system operational safety level during the simulated contingency event.

15. The system for real-time modeling of electrical system performance, as recited in claim 4 , wherein the aspect is a predicted ability of the electrical system to maintain minimum electrical system operational costs during the simulated contingency event.

16. The system for real-time modeling of electrical system performance, as recited in claim 4 , wherein the aspect is a predicted ability of the electrical system to maintain operational stability in the electrical system when subjected to the simulated contingency event.

17. The system for real-time modeling of electrical system performance, as recited in claim 16 , wherein operational stability is a measure of the electrical system's ability to maintain stability and recover from the contingency event without violating operational constraints of the electrical system.

18. A computer implemented method for real-time modeling of electrical system performance, comprising:

acquiring real-time data output from one or more components of an electrical system, wherein the one or more components comprise at least one of a transformer, electrical line, reactor, capacitor, synchronous machine, induction machine, compensator, motor operated valve, turbine, fault isolation unit, and bus transfer unit;

generating predicted data output for the electrical system utilizing a first virtual system model of the electrical system;

determining a difference between the real-time data output and the predicted data output;

if the difference exceeds a first threshold but does not exceed a second threshold, initiating a calibration and synchronization operation to update the first virtual system model in real-time during normal operation of the electrical system to provide predicted data output that is consistent with the real-time data output;

modifying a parameter of the first virtual system model to create a second virtual system model, using a scenario builder application;

simulating electrical system performance using the second virtual system model; and

generating a report that forecasts an aspect of the electrical system.

19. The computer implemented method for real-time modeling of electrical system performance, as recited in claim 18 , wherein the modified parameter is a selection of one of an electrical system component or component operational parameter.

20. The computer implemented method for real-time modeling of electrical system performance, as recited in claim 18 , wherein the modified parameter is a selection of a contingency event that the second virtual system model is subjected to during the simulation.

21. The computer implemented method for real-time modeling of electrical system performance, as recited in claim 18 , wherein the modified parameters is a selection of a remedial system for correcting problems with electrical system performance.

22. The computer implemented method for real-time modeling of electrical system performance, as recited in claim 18 , wherein the modified parameter is a selection of one of an electrical system reliability index or load point reliability index.

23. The computer implemented method for real-time modeling of electrical system performance, as recited in claim 18 , wherein the modified parameter is a selection of a power load set point.

24. The computer implemented method for real-time modeling of electrical system performance, as recited in claim 18 , wherein the aspect is a predicted ability of the electrical system to maintain an acceptably high level of power quality.

25. The computer implemented method for real-time modeling of electrical system performance, as recited in claim 18 , wherein the aspect is a predicted ability of the electrical system to maintain an acceptably high level of power quality when subjected to a contingency event.

26. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the analytics engine is further configured to, if the difference exceeds the second threshold, generate an alarm.

27. The system for real-time modeling of electrical system performance, as recited in claim 1 , wherein the analytics engine is further configured to, if the difference exceeds the second threshold, perform root cause analysis to determine interdependencies and identify parent-child failure relationships between processes and equipment of the electrical system.

28. The computer implemented method for real-time modeling of electrical system performance, as recited in claim 18 , further comprising, if the difference exceeds the second threshold, generating an alarm.

29. The computer implemented method for real-time modeling of electrical system performance, as recited in claim 18 , further comprising, if the difference exceeds the second threshold, performing root cause analysis to determine interdependencies and identify parent-child failure relationships between processes and equipment of the electrical system.

Assignments (11)