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Enhancing ERCOT Wind Unit Modeling for Improved Grid Stability

Explore challenges and solutions in implementing NPRR425 for ERCOT wind units. Discover the issues faced with modeled units and GSU transformers, modifications needed for wind units, and permissible variances between physical and modeled units.

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Enhancing ERCOT Wind Unit Modeling for Improved Grid Stability

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  1. Scope of Problem • Remaining Problems facing NPRR425 • Modeled unit(s) paired with corresponding GSU transformers • 10 of the 93 modeled wind units would need to be modified in ERCOT’s model to meet the criteria. • There are 17 of the 63 registered wind sites that have single units/multiple GSUs or low side kV Bus-ties modeled. • Allowable differences between physical and modeled units

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