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DOE OSTI · 3505046

A Parametric Reduced-Order Model for Inverter Short-Circuit Response in Protection Studies

Mahmud, R. [National Laboratory of the Rockies, Golden, CO (United States)]·Cornmesser, O. [National Laboratory of the Rockies, Golden, CO (United States)]·Chakraborty, S. [National Laboratory of the Rockies, Golden, CO (United States)]·Wang, J. [National Laboratory of the Rockies, Golden, CO (United States)]·Hoke, A. [National Laboratory of the Rockies, Golden, CO (United States)] (ORCID:0000000267917812)·Cale, J. [Colorado State University]·Johnson, B. [University of Idaho]·Pinheiro, P. [University of Idaho]·Bainy, R. [University of Idaho]
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Abstract

This paper presents a reduced-order model (ROM) for grid-following (GFL) inverters that reproduces inverter fault current trajectories, including sub transients, transient, and steady-state phases, across a range of fault types, locations, and pre-fault operating points. . The proposed model is developed by: Constructing the positive- and negative-sequence current with parameterization fitted by large data training and fitting Validating using EMT simulation against EMT full model and demonstrating the ROM's capability to capture fault current magnitude, phase angle, and oscillatory transients. Building a standard EMT simulation platform library component for easy configuration and application.

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24 POWER TRANSMISSION AND DISTRIBUTION97 MATHEMATICS AND COMPUTINGinverter based resourcereduced order modelshort circuit currenttransmission line protection

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Mahmud, R. [National Laboratory of the Rockies, Golden, CO (United States)], Cornmesser, O. [National Laboratory of the Rockies, Golden, CO (United States)], Chakraborty, S. [National Laboratory of the Rockies, Golden, CO (United States)], Wang, J. [National Laboratory of the Rockies, Golden, CO (United States)], Hoke, A. [National Laboratory of the Rockies, Golden, CO (United States)] (ORCID:0000000267917812), Cale, J. [Colorado State University], Johnson, B. [University of Idaho], Pinheiro, P. [University of Idaho], Bainy, R. [University of Idaho]. 2026-08-21. A Parametric Reduced-Order Model for Inverter Short-Circuit Response in Protection Studies. https://doi.org/10.66816/po4554085

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