Status The comment and nomination period for the Project 2022-04 EMT Modeling Standard Authorization Request (SAR) concluded at 8 p.m. Eastern, Tuesday, September 13, 2022. BackgroundThe bulk power system (BPS) in North America is undergoing a rapid transformation towards high penetrations of inverter‐based resources. Transmission Planners (TP) and Planning Coordinators (PC) are concerned about the lack of accurate modeling data and the need to perform electromagnetic transient (EMT) studies during the interconnection process and long‐term planning horizon. The growth of inverter technology has pushed conventional planning tools to their limits in many ways, and TPs and PCs are now faced with the need to conduct more detailed studies using EMT models for issues related to inverter-based resource integration issues.
This SAR proposes including EMT models and studies in planning-related NERC Standards to ensure reliable operation of the BPS moving forward.
Standard(s) Affected: FAC-002, MOD-032, and TPL-001
Purpose/Industry NeedThis project addresses the reliability‐related need and benefit by ensuring TPs and PCs have the models and tools necessary to adequately conduct reliability assessments under increasing levels of inverter‐based resources. This requires the collection of EMT models by applicable entities and TPs and PCs to conduct EMT studies where needed.
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Drafting Team Nominations Supporting MaterialsUnofficial Nomination Form (Word)
Standard Authorization Request
Supporting MaterialsUnofficial Comment Form (Word)
IRPS Supporting Paper
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