A Testing Framework for Grid-Forming Resources: Preprint

Shahil Shah; Weihang Yan; Przemyslaw Koralewicz; Vahan Gevorgian; Deepak Ramasubramanian; Robb Wallen; Anderson Hoke; Benjamin Kroposki; Barry Mather

A Testing Framework for Grid-Forming Resources: Preprint

Shahil Shah, Weihang Yan, Przemyslaw Koralewicz, Vahan Gevorgian, Deepak Ramasubramanian, Robb Wallen, Anderson Hoke, Benjamin Kroposki, Barry Mather

Electric Power Research Institute

Research output: Contribution to conference › Paper

Abstract

This paper presents a testing framework for grid-forming (GFM) resources. It first analytically derives in frequency domain the active and reactive power response of an ideal voltage source with a reactor. These transfer functions are then used to quantify the voltage source behavior expected from a GFM inverter within subtransient time scales (5-10 cycles) following a grid disturbance. The paper also shows that the testing of a GFM inverter might require a reactor of an appropriate size between the inverter and the grid simulator used for the inverter testing. Finally, the paper presents a systematic approach for developing specifications for GFM resources using active and reactive power response frequency scans. The testing framework and results presented in this paper are demonstrated using EMT simulations of a 1-MW GFM inverter.

Original language	American English
Number of pages	8
State	Published - 2023
Event	2023 IEEE Power & Energy Society General Meeting - Orlando, Florida Duration: 16 Jul 2023 → 20 Jul 2023

Conference

Conference	2023 IEEE Power & Energy Society General Meeting
City	Orlando, Florida
Period	16/07/23 → 20/07/23

NREL Publication Number

NREL/CP-5D00-84604

Keywords

frequency scans
grid simulator
grid-forming inverters
power system stability
specifications
stability
testing

Access to Document

https://www.nrel.gov/docs/fy23osti/84604.pdf

Cite this

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title = "A Testing Framework for Grid-Forming Resources: Preprint",

abstract = "This paper presents a testing framework for grid-forming (GFM) resources. It first analytically derives in frequency domain the active and reactive power response of an ideal voltage source with a reactor. These transfer functions are then used to quantify the voltage source behavior expected from a GFM inverter within subtransient time scales (5-10 cycles) following a grid disturbance. The paper also shows that the testing of a GFM inverter might require a reactor of an appropriate size between the inverter and the grid simulator used for the inverter testing. Finally, the paper presents a systematic approach for developing specifications for GFM resources using active and reactive power response frequency scans. The testing framework and results presented in this paper are demonstrated using EMT simulations of a 1-MW GFM inverter.",

keywords = "frequency scans, grid simulator, grid-forming inverters, power system stability, specifications, stability, testing",

author = "Shahil Shah and Weihang Yan and Przemyslaw Koralewicz and Vahan Gevorgian and Deepak Ramasubramanian and Robb Wallen and Anderson Hoke and Benjamin Kroposki and Barry Mather",

year = "2023",

language = "American English",

note = "2023 IEEE Power & Energy Society General Meeting ; Conference date: 16-07-2023 Through 20-07-2023",

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T1 - A Testing Framework for Grid-Forming Resources: Preprint

AU - Shah, Shahil

AU - Yan, Weihang

AU - Koralewicz, Przemyslaw

AU - Gevorgian, Vahan

AU - Ramasubramanian, Deepak

AU - Wallen, Robb

AU - Hoke, Anderson

AU - Kroposki, Benjamin

AU - Mather, Barry

PY - 2023

Y1 - 2023

N2 - This paper presents a testing framework for grid-forming (GFM) resources. It first analytically derives in frequency domain the active and reactive power response of an ideal voltage source with a reactor. These transfer functions are then used to quantify the voltage source behavior expected from a GFM inverter within subtransient time scales (5-10 cycles) following a grid disturbance. The paper also shows that the testing of a GFM inverter might require a reactor of an appropriate size between the inverter and the grid simulator used for the inverter testing. Finally, the paper presents a systematic approach for developing specifications for GFM resources using active and reactive power response frequency scans. The testing framework and results presented in this paper are demonstrated using EMT simulations of a 1-MW GFM inverter.

AB - This paper presents a testing framework for grid-forming (GFM) resources. It first analytically derives in frequency domain the active and reactive power response of an ideal voltage source with a reactor. These transfer functions are then used to quantify the voltage source behavior expected from a GFM inverter within subtransient time scales (5-10 cycles) following a grid disturbance. The paper also shows that the testing of a GFM inverter might require a reactor of an appropriate size between the inverter and the grid simulator used for the inverter testing. Finally, the paper presents a systematic approach for developing specifications for GFM resources using active and reactive power response frequency scans. The testing framework and results presented in this paper are demonstrated using EMT simulations of a 1-MW GFM inverter.

KW - frequency scans

KW - grid simulator

KW - grid-forming inverters

KW - power system stability

KW - specifications

KW - stability

KW - testing

M3 - Paper

T2 - 2023 IEEE Power & Energy Society General Meeting

Y2 - 16 July 2023 through 20 July 2023

ER -

A Testing Framework for Grid-Forming Resources: Preprint

Abstract

Conference

NREL Publication Number

Keywords

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Cite this