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Our people have been working with synchrophasors right from the time the technology first appeared. From developing standards for the technology to the hands on implementation of phasor networks. EPG’s credentials in the area of synchrophasor technology consulting are second to none.

The value of synchrophasor technology is well accepted in the industry. However, it is clear that more than visuals or pretty pictures are required for the adoption of the technology in daily operations. Challenges that need to be addressed include:

  • Is the design architetcure of the system practical, feasible and implementable? Will it be compatible with the existing infrastructure like communication, networks etc.
  • Is the data valid, reliable, and of high quality?
  • Are the observations consistent with current tools – state estimation, SCADA/EMS?
  • What is the significance of alarms and alerts? Have they been validated with engineering studies or empirical analysis?
  • Is the information being presented actionable?
  • What is the mapping of operator actions with observations and measurements from synchrophasor data?
  • How can the synchrophasor metrics (phase angle differences, damping, oscillation frequency, voltage sensitivities) be translated to physical measures that are controllable and actionable by operators – power flows, generation, load, capacitors, power system stabilizers?
  • Are the results consistent with planning models and have they been validated empirically or through studies by engineers?
  • Can the observations be translated to a consistent set of operator actions that can be used to train operators?

As organizations prepare to deploy large synchrophasor networks, our bank of expertise and hands-on experiences is available to help and guide for a successful implementation.

EPG has developed a comprehensive roadmap for the successful itegration of phasor technology. The roadmap starts with the concept and design issues and takes the process to the successful operationalization.

EPG provides consulting services for all stages of this roadmap.

    • Getting Started - Infrastructure Deployment and Start-Up

      1. Project Design and PMU Deployment Challenges – Review project plans and assess design adequacy to meet project goals. Identify deployment issues including PMU location, PMU selection, interoperability, calibration, testing, archiving (local vs. central), failover, redundancy, connectivity and provide solutions or methods to mitigate issues

      2. Network Communications Assessment and Gap Analysis – Discuss and review application requirements and communications plans to identify gaps in plans. Issues to be addressed include bandwidth, latency, data quality (packet loss), data capture, network performance.

    • Delivering Value from PMU data for Operations and Monitoring

      1. PMU and Network Performance Tuning – collect and analyze data to measure performance of individual PMUs as well as the network. Present recommendations to improve performance in terms of data quality and reliability.
      2. Base Lining Studies – analyze archived data using statistical methods and summarize results (seasonal patterns, threshold levels)
      3. Validate Planning Models - provide results from baselining studies and real time event measurements to calibrate planning models
      4. Establish Thresholds for Alarms, Alerts, Limits for use in Real Time Monitoring Applications
      5. Improving State Estimation

    • Use of Applications and Data

      1. Real Time Wide Area Monitoring and Situational Awareness – Utilize RTDMS for real time monitoring, wide area dashboards, event archiver, reports
      2. Event Analysis – collect and analyze event data to assess grid performance
      3. Analysis of Grid Performance – Frequency Response, Phase Angles, Reliability Margins, Damping
      4. Analyze Grid Dynamics – Oscillations, Modes

    • Research and Development

      1. Develop Dynamic Grid Management and Operation Parameters, e.g., Dynamic Nomograms
      2. Map Operator Actions to Observed Metrics Using Synchrophasor Data – Test and Validate
      3. Develop System Vulnerability Matrix Based on Combinations of Synchrophasor Metrics
      4. Develop Tool Kit of Operator Actions and Operating Guidelines



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