This recommended practice provides an open-source data schema that enables users to efficiently build and maintain electromagnetic transient (EMT) network models of electric power transmission systems. The EMT models require input from different existing sources of data for power flow, short circuit and positive sequence dynamics, supplemented with new data source definitions. In two recent white papers, North American grid regulatory authorities have identified EMT studies as essential to maintain grid reliability while accommodating the rapid increase of inverter-based resources (e.g. wind, solar, storage). Model-building for EMT is a time-consuming and error-prone part of the study. If software vendors implement this recommended practice, software users should be able to combine data from different sources, while reducing the time and cost of completing accurate EMT studies. This recommended practice applies to offline and real-time EMT simulation tools, and it supports data migration between software tools. It does not apply to EMT models of electric power distribution systems, nor to positive sequence dynamic models of either transmission or distribution systems.
- Standard Committee
- PE/AMPS - Analytic Methods for Power Systems
- Status
- Active PAR
- PAR Approval
- 2025-09-10
- Open Source
- IEEE SA Open Source Project
- Open Source CLA
- Apache 2.0
Working Group Details
- Society
- IEEE Power and Energy Society
- Standard Committee
- PE/AMPS - Analytic Methods for Power Systems
- Working Group
-
EMTIOP - Electromagnetic Transient Model Interoperability for Electric Power Transmission Systems
- IEEE Program Manager
- Malia Zaman
Contact Malia Zaman - Working Group Chair
- Thomas McDermott
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