Systems and methods for real-time dynamic simulation of uninterruptible power supply solutions and their control logic systems

• US 7,844,440 B2
• Filed: 07/09/2007
• Issued: 11/30/2010
• Est. Priority Date: 07/07/2006
• Status: Expired due to Fees

• Current Assignee: Power Analytics Corporation (PAC Global, Inc.)
• Original Assignee: EDSA Micro Corporation (PAC Global, Inc.)
• Inventors: Moshref, Ali, Nasle, Adib, Nasle, Ali
• Primary Examiner(s): Shah; Kamini S
• Assistant Examiner(s): Calle; Angel J
• Application Number:
  US11/775,146
• Publication Number:
  US 20080215302A1
• Time in Patent Office: 1,240 Days
• Field of Search: 703/1, 703/18
• US Class Current: 703/18
• CPC Class Codes: G06F 2119/06 Power analysis or power optimisation
• CPC Class Codes: G06F 30/20 Design optimisation, verification or simulation optimisation, verification or simulation of circuit designs G06F30/30

Abstract

A system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system is disclosed. The system includes a data acquisition component, a power analytics server and a client terminal. The data acquisition component acquires real-time data output from the electrical system. The power analytics server is comprised of a virtual system modeling engine, an analytics engine and a UPS transient stability simulation engine. The virtual system modeling engine generates predicted data output for the electrical system. The analytics engine monitors real-time data output and predicted data output of the electrical system. The UPS transient stability simulation engine stores and processes patterns observed from the real-time data output and utilizes a user-defined UPS control logic model to forecast an aspect of the interaction between UPS control elements and the electrical system subjected to a simulated contingency event.

Claims

1. A system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, comprising:

a data acquisition component communicatively connected to a sensor configured to acquire real-time data output from the electrical system;

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 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, the analytics engine further configured to initiate a calibration and synchronization operation to update the virtual system model when a difference between the real-time data output and the predicted data output exceeds a threshold, and

a UPS transient stability simulation engine configured to store and process patterns observed from the real-time data output and the predicted data output, the UPS transient stability simulation engine further configured to utilize a user-defined UPS control logic model to forecast an aspect of the interaction between UPS control elements and the electrical system during a contingency event; and

a client terminal communicatively connected to the analytics server, the client terminal configured to allow a system administrator to create the user-defined UPS control logic model, select the contingency event simulated and display a report of the forecasted aspects.

2. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the UPS transient stability simulation engine includes,

an associative memory layer,

a sensory layer, and

a neocortical model.

3. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the virtual system model includes current system components and operational parameters comprising the electrical system.

4. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the electrical system is comprised of static components and rotating components.

5. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the aspect is a predicted ability of the UPS control elements to maintain an acceptably high level of power quality in the electrical system during the simulated contingency event.

6. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 5, wherein the power quality level is high when the electrical system maintains a voltage and frequency output within defined tolerance limits.

7. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the aspect is a predicted ability of the UPS control elements to maintain sufficient active power reserves in the electrical system during the simulated contingency event.

8. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the aspect is a predicted ability of the UPS control elements to maintain sufficient reactive power reserve in the electrical system during the simulated contingency event.

9. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the aspect is a predicted ability of the UPS control elements to maintain a minimum level of electrical system reliability during the simulated contingency event.

10. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the aspect is a predicted ability of the UPS control elements to maintain a minimum electrical system operational safety level during the simulated contingency event.

11. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the aspect is a predicted ability of the UPS control elements to maintain minimum electrical system operational costs during the simulated contingency event.

12. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the aspect is a predicted ability of the UPS control elements to maintain operational stability in the electrical system when subjected to the simulated contingency event.

13. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 12, 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.

14. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the user-defined UPS control logic model includes a generator voltage variable.

15. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the UPS control logic model includes a generator speed variable.

16. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the UPS control logic model includes an automatic voltage regulator (AVR) field voltage variable.

17. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the UPS control logic model includes a governor mechanical power variable.

18. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the contingency event relates to load shedding.

19. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the contingency event relates to load adding.

20. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the contingency event relates to loss of utility power supply to the electrical system.

21. The system for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 1, wherein the contingency event relates to a loss of distribution infrastructure associated with the electrical system.

22. A method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, comprising:

updating a virtual system model of the electrical system in response to real-time data;

monitoring predicted data for the electrical system generated using the virtual system model;

initiating a calibration and synchronization operation to update the virtual system model when a difference between the real-time data and the predicted data exceeds a threshold, and

creating a user-defined UPS control logic model;

choosing a contingency event to simulate;

simulating the interactions of the UPS control elements with the electrical system using the updated virtual system model and the user-defined UPS control logic model operating under conditions that replicate the chosen contingency event; and

generating a report that forecasts an aspect of the interaction between the UPS control elements and the electrical system.

23. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the virtual system model includes current system components and operational parameters comprising the electrical system.

24. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the electrical system is comprised of static components and rotating components.

25. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the aspect is a predicted ability of the UPS control elements to maintain an acceptably high level of power quality in the electrical system during the simulated contingency event.

26. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 25, wherein the power quality level is high when the electrical system maintains a voltage and frequency output within defined tolerance limits.

27. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the aspect is a predicted ability of the UPS control elements to maintain sufficient active power reserves in the electrical system during the simulated contingency event.

28. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the aspect is a predicted ability of the UPS control elements to maintain sufficient reactive power reserve in the electrical system during the simulated contingency event.

29. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the aspect is a predicted ability of the UPS control elements to maintain a minimum level of electrical system reliability during the simulated contingency event.

30. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the aspect is a predicted ability of the UPS controls to maintain a minimum electrical system operational safety level during the simulated contingency event.

31. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the aspect is a predicted ability of the UPS control elements to maintain minimum electrical system operational costs during the simulated contingency event.

32. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the aspect is a predicted ability of the UPS control elements to maintain operational stability in the electrical system during the simulated contingency event.

33. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 32, 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.

34. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the user-defined UPS control logic model includes a generator voltage variable.

35. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the user-defined UPS control logic model includes a generator speed variable.

36. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the user-defined UPS control logic model includes an automatic voltage regulator (AVR) field voltage variable.

37. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the user-defined UPS control logic model includes a governor mechanical power variable.

38. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the contingency event relates to load shedding.

39. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the contingency event relates to load adding.

40. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the contingency event relates to loss of utility power supply to the electrical system.

41. The method for real-time modeling of uninterruptible power supply (UPS) control elements protecting an electrical system, as recited in claim 22, wherein the contingency event relates to a loss of distribution infrastructure associated with the electrical system.