Analysis of a Disturbance Event With Inverter-Based Resources Using EMT Simulations

Suman Debnath; Phani Marthi; Jongchan Choi; Sayan Samanta; Nilanjan Ray Chaudhuri; Andrew Arana; Huzaifa Karimjee; David Piper; Md Arifujjaman

doi:10.1109/TSTE.2025.3560218

Analysis of a Disturbance Event With Inverter-Based Resources Using EMT Simulations

Suman Debnath
, Phani Marthi
, Jongchan Choi
, Sayan Samanta
, Nilanjan Ray Chaudhuri
, Andrew Arana
, Huzaifa Karimjee
, David Piper
, Md Arifujjaman

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Increasing penetration of inverter-based resources (IBRs) necessitates newer methods of planning and analysis of disturbances. The existing phasor-domain transient stability (TS) analysis may not capture the dynamics of IBRs during fault events. In this paper, electromagnetic transient (EMT) simulations using high-fidelity detailed model of power grid and one of the affected photovoltaic (PV) plants during the Angeles Forest disturbance in 2018 are performed. In these simulations, the processes to develop EMT models of power grid from traditional phasor-domain TS data and PV plant from collected data are described. Thereafter, using these simulations, the response of the PV plant during the fault event in 2018 is replicated and a sensitivity analysis is performed. The sensitivity analysis consists of making changes to the components within the PV plant and in the power grid to evaluate the impact they have on the response observed by the PV plant during the fault event. This analysis provides an understanding of the components that impact the operation of a PV plant during fault events and provide guidance to system planners on the studies that need to be performed to maintain a reliable power grid as new IBR plants are integrated.

Original language	English
Pages (from-to)	2600-2610
Number of pages	11
Journal	IEEE Transactions on Sustainable Energy
Volume	16
Issue number	4
DOIs	https://doi.org/10.1109/TSTE.2025.3560218
State	Published - 2025

Funding

Received 3 October 2024; revised 23 January 2025; accepted 22 February 2025. Date of publication 14 April 2025; date of current version 22 September 2025. This work was supported in part by the Solar Energy Technologies Office of U.S. Department of Energy, in part by the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) through the Solar Energy Technologies Office under Award 36532, and in part by UT-Battelle, LLC under Contract DE-AC05-00OR22725 with the U.S. Department of Energy. Paper no. TSTE-01238-2024. (Corresponding author: Suman Debnath.) Suman Debnath, Phani Marthi, and Jongchan Choi are with the Energy Science and Technology Science Directorate, Oak Ridge National Laboratory, Knoxville, TN 37932 USA (e-mail: [email protected]).

Keywords

EMT simulation
PV plant
disturbance analysis
high-fidelity model
inverter-based resources
operations analysis
planning

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10.1109/TSTE.2025.3560218

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title = "Analysis of a Disturbance Event With Inverter-Based Resources Using EMT Simulations",

abstract = "Increasing penetration of inverter-based resources (IBRs) necessitates newer methods of planning and analysis of disturbances. The existing phasor-domain transient stability (TS) analysis may not capture the dynamics of IBRs during fault events. In this paper, electromagnetic transient (EMT) simulations using high-fidelity detailed model of power grid and one of the affected photovoltaic (PV) plants during the Angeles Forest disturbance in 2018 are performed. In these simulations, the processes to develop EMT models of power grid from traditional phasor-domain TS data and PV plant from collected data are described. Thereafter, using these simulations, the response of the PV plant during the fault event in 2018 is replicated and a sensitivity analysis is performed. The sensitivity analysis consists of making changes to the components within the PV plant and in the power grid to evaluate the impact they have on the response observed by the PV plant during the fault event. This analysis provides an understanding of the components that impact the operation of a PV plant during fault events and provide guidance to system planners on the studies that need to be performed to maintain a reliable power grid as new IBR plants are integrated.",

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Analysis of a Disturbance Event With Inverter-Based Resources Using EMT Simulations

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