Wide-area, real-time monitoring and visualization system

CAFC
  • US 8,401,710 B2
  • Filed: 09/29/2011
  • Issued: 03/19/2013
  • Est. Priority Date: 08/08/2003
  • Status: Expired due to Fees
First Claim
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1. A wide-area real-time performance monitoring system for monitoring events on an interconnected electric power grid in real time over a wide area and automatically analyzing the events on the interconnected electric power grid, the system comprising:

  • a monitor computer including an interface for receiving a plurality of data streams, each of the data streams comprising sub-second, time stamped synchronized phasor measurements wherein the measurements in each stream are collected in real time at geographically distinct points over the wide area of the interconnected electric power grid, the wide area comprising at least two elements from among control areas, transmission companies, utilities, regional reliability coordinators, and reliability jurisdictions;

    a plurality of interfaces to other power system data sources, the other power system data sources comprising at least one of transmission maps, power plant locations, EMS/SCADA systems; and

    a plurality of interfaces to non-grid data sources,wherein the monitor computer is configured to monitor metrics, the metrics comprising at least one of reliability metrics, power grid operations metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and market metrics over the wide area of the interconnected electric power grid,wherein the monitor computer is configured to detect the events in real-time from the plurality of data streams from the wide area,wherein the monitor computer is configured to execute event detection logic, the event detection logic being configured to detect and analyze an event based on at least one of limits, sensitivities and rates of change for one or more measurements from the data streams and dynamic stability metrics derived from analysis of the measurements from the data streams including at least one of frequency instability, voltages, power flows, phase angles, damping, and oscillation modes, derived from the phasor measurements and the other power system data sources in which the metrics are indicative of events, grid stress, and/or grid instability, over the wide area,wherein the monitor computer is configured to automatically present event analysis results and diagnoses of events via a graphical user interface coupled to the monitor computer for concurrently displaying the event analysis results and diagnoses of events and associated metrics from different categories of data and the derived metrics in visuals, tables, charts, or combinations thereof,wherein the data comprises at least one of monitoring data, tracking data, historical data, prediction data, and summary data,wherein the graphical user interface is configured to display concurrent visualization of the measurements from the data streams and the dynamic stability metrics directed to the wide area of the interconnected electric power grid,wherein the monitor computer is configured to accumulate and to update the measurements from the data streams, the dynamic stability metrics, grid data, and non-grid data in real time as to wide area and local area portions of the interconnected electric power grid, andwherein the monitor computer is configured to derive a composite indicator of reliability that is an indicator of power grid vulnerability and is derived from a combination of one or more real time measurements or computations of measurements from the data streams and the dynamic stability metrics covering the wide area as well as non-power grid data received from the non-grid data source.

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