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ROS - NPRR425 Workshop SPWG RARF Modeling Changes April 30, 2012

ROS - NPRR425 Workshop SPWG RARF Modeling Changes April 30, 2012. James Teixeira. Protocol References. 3.10.7.1.4 Transmission and Generation Resource Step-Up Transformers

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ROS - NPRR425 Workshop SPWG RARF Modeling Changes April 30, 2012

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  1. ROS - NPRR425 Workshop SPWG RARF Modeling ChangesApril 30, 2012 James Teixeira

  2. Protocol References 3.10.7.1.4 Transmission and Generation Resource Step-Up Transformers (2) ERCOT shall model all Generation Resource step-up transformers greater than ten MVA to provide for accurate representation of generator voltage control capability including the capability to accept a system operator entry of a specific no-load tap position, or if changeable under Load, accept telemetry of the current tap position.

  3. Protocol References 3.10.7.2 Modeling of Resources and Transmission Loads (1) Each Resource Entity shall provide ERCOT and TSPs with information describing each of its Generation Resources and Load Resources connected to the transmission system. All Resources greater than ten MW, Generation Resources less than ten MW but providing Ancillary Service, Split Generation Resources where the physical generator being split is greater than ten MW, Private Use Networks containing Resources greater than ten MW, Wind-powered Generation Resources (WGRs) or Aggregated Generation Resources (AGRs) with an aggregate interconnection to the ERCOT System greater than ten MW, Direct Current Tie (DC Tie) Resources, and the non-TSP owned step-up transformers greater than ten MVA, must be modeled to provide equivalent generation injections to the ERCOT Transmission Grid. ERCOT shall coordinate the modeling of Generation Resources, Private Use Networks, DC Tie Resources and Load Resources with their owners to ensure consistency between TSP models and ERCOT models.

  4. Protocol References 3.10 Network Operations Modeling and Telemetry (5) ERCOT shall use consistent information within and between the various models used by ERCOT Operations, ERCOT Planning, and other workgroups in a manner that yields consistent results. For operational and planning models that are intended to represent the same system state the results should be consistent and the naming should be identical. An independent audit must be performed at least annually to confirm that consistent information is used in all ERCOT Operations models.

  5. TSP Data Three Phase Fault

  6. RARF Data Three Phase Fault

  7. Properly Reduced from TSP Data Three Phase Fault

  8. Questions?

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