Real-time performance monitoring and management system

• US 7,233,843 B2
• Filed: 08/09/2004
• Issued: 06/19/2007
• Est. Priority Date: 08/08/2003
• Status: Expired due to Fees

• Current Assignee: Electric Power Group LLC
• Original Assignee: Electric Power Group LLC
• Inventors: Budhraja, Vikram S., Martinez Morales, Carlos A., Dyer, James D.
• Primary Examiner(s): VON BUHR, MARIA N
• Application Number:
  US10/914,789
• Publication Number:
  US 20050033481A1
• Time in Patent Office: 1,044 Days
• Field of Search: 709217-219, 709223-225, 709/249, 700/83, 700/286, 700/291, 700/297, 702 60- 62, 702179-185, 703/18, 715/965, 715/969
• US Class Current: 700/291
• CPC Class Codes: G01R 21/133 by using digital technique
• CPC Class Codes: H02J 13/00001 characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
• CPC Class Codes: H02J 13/00002 characterised by monitoring
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 2203/20 Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
• CPC Class Codes: H02J 3/003 Load forecast, e.g. methods or systems for forecasting future load demand
• CPC Class Codes: H02J 3/008 involving trading of energy or energy transmission rights
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 10/30 State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
• CPC Class Codes: Y04S 10/40 Display of information, e.g. of data or controls
• 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
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area.

Claims

1. A real-time performance monitoring system for monitoring an electric power grid, comprising:

a monitor computer for monitoring at least one of reliability metrics, power grid operations metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics or markets metrics over a plurality of control areas of the electric power grid operated on a plurality of different platforms by a plurality of different business systems or companies;

a database for storing the metrics being monitored by the monitor computer; and

at least one display computer in at least one of said plurality of control areas of the electric power grid, the at least one display computer having a monitor for displaying a visualization of the metrics being monitored by the monitor computer,

said at least one display computer in one of said plurality of control areas being adapted to enable an operator located in and responsible for monitoring the one of said plurality of control areas to monitor one or more of said plurality of control areas that are different from the control area in which the operator is located.

2. The real-time performance monitoring system of claim 1, wherein the monitor computer includes an application for monitoring the reliability metrics, and wherein said application performs real-time monitoring of at least one of voltage/VAR (volt-ampere reactive), ACE (area control error)-frequency, AIE (area interchange error) schedule or phasor measurements for the electric power grid or a portion thereof or for one or more of said plurality of control areas, wherein the electric power grid covers a wide area across one or more cities, counties, states or countries.

3. The real-time performance monitoring system of claim 1, wherein the monitor computer includes an application for monitoring the generation metrics, and wherein said application performs real-time monitoring of at least one of suppliers and control area responses to at least one of AGC (automatic generation control), a frequency response, ancillary services or a ramping response.

4. The real-time performance monitoring system of claim 1, wherein the monitor computer includes an application for monitoring the grid infrastructure security metrics, and wherein said application performs real-time monitoring of at least one of system vulnerability including phasor measurements and changes thereof or exposure in terms of at least one of population or cities.

5. The real-time performance monitoring system of claim 1, wherein the monitor computer includes an application for monitoring the markets metrics, wherein said application performs real-time monitoring of at least one of generation market power or price spikes.

6. The real-time performance monitoring system of claim 1, wherein at least one of the monitor computer or said at least one display computer performs at least one of historical tracking, prediction or actions related to the metrics being monitored, wherein the actions related to the metrics being monitored include actions related to one or more violations of one or more predefined thresholds, wherein the one or more violations are communicated in real time through alarms or other communication systems.

7. The real-time performance monitoring system of claim 6, wherein the monitor displays a visualization of data representing said at least one of historical tracking, prediction or actions related to the metrics being monitored.

8. The real-time performance monitoring system of claim 6, wherein the prediction includes at least one of a near real-time forecasting or a “

what if”

sensitivity analysis.

9. The real-time performance monitoring system of claim 1, wherein the monitor concurrently displays at least one dynamic geographic display and a plurality of data or text panels for at least one of monitoring, tracking, prediction, actions or mitigations.

10. The real-time performance monitoring system of claim 1, wherein the monitoring of the metrics can be performed real-time and/or near real-time.

11. The real-time performance monitoring system of claim 1, wherein the monitoring system utilizes data from or is integrated with at least one of SCADA (Security Control and Data Acquisition), EMS (Energy Management System), PMUs-PDCs (phasor measurement units-phasor data concentrators) or another control power system.

12. The real-time performance monitoring system of claim 1, wherein an operator of at least one of the monitor computer or said at least one display computer can define an application to monitor metrics, which are related to the electric power grid at the local level, control area level, or regional level covering a wide area, which the operator desires to monitor.

13. The real-time performance monitoring system of claim 1, wherein a display format of the visualization on the monitor can be customized by the operator.

14. The real-time performance monitoring system of claim 1, wherein the monitor computer is a server and said at least one display computer comprises a client in a server-client architecture.

15. The real-time performance monitoring system of claim 1, wherein the monitor computer is a dedicated server.

16. The real-time performance monitoring system of claim 1, wherein the monitor computer and said at least one display computer communicate with each other in a web environment or over a secure proprietary network.

17. The real-time performance monitoring system of claim 1, wherein the operator of said at least one display computer can interactively collect historical data and view a visualization of the historical data in tabular, graphics or a customized format.

18. The real-time performance monitoring system of claim 1, wherein the operator of said at least one display computer can interactively create data reports from the metrics stored in the database.

19. The real-time performance monitoring system of claim 1, wherein the monitor computer monitors proximity to potential system faults, and said at least one display computer graphically represents the proximity to potential system faults on the monitor.

20. The real-time performance monitoring system of claim 1, wherein the monitor computer tracks, identifies and saves data on abnormal operating patterns in the database, and the display computer displays a visualization of the abnormal operating patterns on the monitor.

21. The real-time performance monitoring system of claim 1, wherein said at least one display computer enables the operator to define a display level to at least one of the electric power grid, one said control area or multiple said control areas.

22. The real-time performance monitoring system of claim 1, wherein said at least one display computer in one of a plurality of control areas enables the operator in the one of said plurality of control areas to manage at least one grid portion corresponding to a different one of said plurality of control areas.

23. The real-time performance monitoring system of claim 1, wherein the monitor computer performs wide area monitoring of the electric power grid using SCADA (Security Control and Data Acquisition) data and/or time synchronized data from phasors or other sources.

24. The real-time performance monitoring system of claim 1:

wherein the reliability metrics, power grid operations metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics or markets metrics for the electric power grid are monitored across a wide area covering multiple control areas and utilities;

wherein each of the plurality of grid portions includes a network of high voltage transmission lines and generators interconnected to the network that is spread out over the multiple control areas across the wide area;

wherein the plurality of grid portions are subject to power blackouts that spread or cascade over the wide area; and

wherein the operator is a reliability coordinator having responsibility to;

monitor the power grid metrics over the wide area for reliability management; and

prevent power blackouts that spread or cascade over the wide area.