System for control performance standards

• US 7,092,798 B2
• Filed: 05/07/2004
• Issued: 08/15/2006
• Est. Priority Date: 05/13/2003
• Status: Expired due to Fees

• Current Assignee: Siemens AG
• Original Assignee: Siemens Power Transmission & Distribution Incorporated (Siemens AG)
• Inventors: Mansingh, Ashmin, York, Mike
• Primary Examiner(s): Paladini, Albert W.
• Assistant Examiner(s): KOSOWSKI, ALEXANDER J
• Application Number:
  US10/841,055
• Publication Number:
  US 20040264083A1
• Time in Patent Office: 830 Days
• Field of Search: 700/90, 700/286, 700291-292, 703/57, 703/58, 703/59, 340/657, 702/57, 702/60
• US Class Current: 700/292
• CPC Class Codes: H02J 2203/20 Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
• CPC Class Codes: H02J 3/00 Circuit arrangements for ac mains or ac distribution networks
• CPC Class Codes: H02J 3/0012 Contingency detection
• CPC Class Codes: H02J 3/003 Load forecast, e.g. methods or systems for forecasting future load demand
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 10/50 Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
• CPC Class Codes: Y04S 40/20 Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

Certain exemplary embodiments provide a method comprising: detecting a NERC disturbance in an electrical power system; determining a first corrective action to return the electrical power system to a pre-disturbance level within a predetermined disturbance recovery time; determining a second corrective action to cause the electrical power system to meet one or more predefined NERC CPS compliance target values; and providing a corrective control signal to the electrical power system.

Claims

1. A method, comprising:

detecting a North American Electric Reliability Council (NERC) disturbance in an electrical power system;

determining a first corrective action to return the electrical power system to a pre-disturbance level within a predetermined disturbance recovery time;

determining a second corrective action to cause the electrical power system to meet one or more predefined NERC Control Performance Standard (CPS) compliance target values; and

providing a corrective control signal to the electrical power system, the corrective control signal determined based upon a Lagrange Multiplier approach.

2. The method of claim 1, further comprising:

monitoring the electrical power system for disturbances.

3. The method of claim 1, further comprising:

identifying a disturbance.

4. The method of claim 1, further comprising:

filtering out a non-conforming disturbance.

5. The method of claim 1, further comprising:

receiving real-time Area Control Error (ACE) data for the electrical power system.

6. The method of claim 1, further comprising:

obtaining a current Automatic Generation Control (AGC) performance value.

7. The method of claim 1, further comprising:

obtaining historical Automatic Generation Control (AGC) performance values.

8. The method of claim 1, further comprising:

determining a Control Performance Standard 1 (CPS1) compliance factor from real-time ACE data for the electrical power system.

9. The method of claim 1, further comprising:

obtaining a Control Performance Standard 1 (CPS

     1) compliance target value.

10. The method of claim 1, further comprising:

evaluating a Control Performance Standard 1 (CPS

     1) compliance factor.

11. The method of claim 1, further comprising:

determining a Control Performance Standard 2 (CPS2) compliance factor from real-time ACE data for the electrical power system.

12. The method of claim 1, further comprising:

obtaining a Control Performance Standard 2 (CPS2) compliance target value.

13. The method of claim 1, further comprising:

evaluating a Control Performance Standard 2 (CPS2) compliance factor.

14. The method of claim 1, further comprising:

calculating the first corrective action.

15. The method of claim 1, further comprising:

calculating the second corrective action.

16. The method of claim 1, further comprising:

prioritizing the first corrective action and the second corrective action.

17. The method of claim 1, further comprising:

predicting the NERC disturbance.

18. The method of claim 1, further comprising:

anticipating the corrective control signal.

19. The method of claim 1, further comprising:

archiving data related to the NERC disturbance.

20. The method of claim 1, further comprising:

generating a NERC report comprising Control Performance Standard 1 (CPS1) compliance statistics.

21. The method of claim 1, further comprising:

generating a NERC report comprising Control Performance Standard 2 (CPS2) compliance statistics.

22. The method of claim 1, further comprising:

submitting a NERC report comprising Control Performance Standard 2 (CPS1) compliance statistics.

23. The method of claim 1, further comprising:

submitting a NERC report comprising Control Performance Standard 1 (CPS2) compliance statistics.

24. The method of claim 1, wherein the corrective control signal is based on the first corrective action.

25. The method of claim 1, wherein the corrective control signal is based on the second corrective action.

26. A machine-readable medium containing executable instructions for activities comprising:

detecting a North American Electric Reliability Council (NERC) disturbance in an electrical power system;

determining a first corrective action to return the electrical power system to a pre-disturbance level within a predetermined disturbance recovery time;

determining a second corrective action to cause the electrical power system to meet one or more predefined NERC Control Performance Standard (CPS) compliance target values; and

providing a corrective control signal to the electrical power system, the corrective control signal determined based upon a Lagrange Multiplier approach.

27. A system comprising:

a North American Electric Reliability Council (NERC) disturbance detection processor coupled to an electrical power system;

a first determination processor adapted to determine a first corrective action to return the electrical power system to a pre-disturbance level within a predetermined disturbance recovery time; and

a second determination processor adapted to determine a second corrective action to cause the electrical power system to meet one or more predefined NERC Control Performance Standard (CPS) compliance target values, said second determination processor adapted to base the second corrective action upon a Lagrange Multiplier approach.