Dynamic Interaction of Grid-Forming and Grid-Following Inverters with Synchronous Generators in Hybrid Power Plants

Amirhossein Sajadi; Rick Wallace Kenyon; Matthew Bossart; Bri Mathias Hodge

doi:10.1109/KPEC51835.2021.9446204

Dynamic Interaction of Grid-Forming and Grid-Following Inverters with Synchronous Generators in Hybrid Power Plants

Amirhossein Sajadi, Rick Wallace Kenyon, Matthew Bossart, Bri Mathias Hodge

Grid Planning and Analysis Center

Research output: Contribution to conference › Paper › peer-review

6 Scopus Citations

Abstract

As the integration of renewable energy resources such as wind and solar generation continues to grow, the use of hybrid power plants with both synchronous machines and power electronic inverters operating in parallel becomes more common. This paper studies the impact on small-signal stability for these pairs of devices, first as an isolated two-device system and then as part of a 9-bus test system. Each operational scenario was studied with both a grid-following inverter and a grid-forming inverter. In each scenario, the state variables associated with the synchronous generator’s excitation system were found to be responsible for the inception of instability. These results underscore the importance of accurate modeling of excitation systems when modeling power systems with hybrid power plants.

Original language	American English
Number of pages	6
DOIs	https://doi.org/10.1109/KPEC51835.2021.9446204 https://doi.org/10.1109/KPEC51835.2021.9446204
State	Published - 2021
Event	2nd Annual IEEE Kansas Power and Energy Conference, KPEC 2021 - Manhattan, United States Duration: 19 Apr 2021 → 20 Apr 2021

Conference

Conference	2nd Annual IEEE Kansas Power and Energy Conference, KPEC 2021
Country/Territory	United States
City	Manhattan
Period	19/04/21 → 20/04/21

Bibliographical note

Publisher Copyright:
© 2021 IEEE

NREL Publication Number

NREL/CP-6A40-81260

Keywords

Hybrid power plant
Inverter-based resources
Power system dynamic stability
Renewable energy
Synchronous machine

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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Sajadi, A., Kenyon, R. W., Bossart, M., & Hodge, B. M. (2021). Dynamic Interaction of Grid-Forming and Grid-Following Inverters with Synchronous Generators in Hybrid Power Plants. Paper presented at 2nd Annual IEEE Kansas Power and Energy Conference, KPEC 2021, Manhattan, United States. https://doi.org/10.1109/KPEC51835.2021.9446204, https://doi.org/10.1109/KPEC51835.2021.9446204

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title = "Dynamic Interaction of Grid-Forming and Grid-Following Inverters with Synchronous Generators in Hybrid Power Plants",

abstract = "As the integration of renewable energy resources such as wind and solar generation continues to grow, the use of hybrid power plants with both synchronous machines and power electronic inverters operating in parallel becomes more common. This paper studies the impact on small-signal stability for these pairs of devices, first as an isolated two-device system and then as part of a 9-bus test system. Each operational scenario was studied with both a grid-following inverter and a grid-forming inverter. In each scenario, the state variables associated with the synchronous generator{\textquoteright}s excitation system were found to be responsible for the inception of instability. These results underscore the importance of accurate modeling of excitation systems when modeling power systems with hybrid power plants.",

keywords = "Hybrid power plant, Inverter-based resources, Power system dynamic stability, Renewable energy, Synchronous machine",

author = "Amirhossein Sajadi and Kenyon, {Rick Wallace} and Matthew Bossart and Hodge, {Bri Mathias}",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE; 2nd Annual IEEE Kansas Power and Energy Conference, KPEC 2021 ; Conference date: 19-04-2021 Through 20-04-2021",

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doi = "10.1109/KPEC51835.2021.9446204",

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Sajadi, A, Kenyon, RW, Bossart, M & Hodge, BM 2021, 'Dynamic Interaction of Grid-Forming and Grid-Following Inverters with Synchronous Generators in Hybrid Power Plants', Paper presented at 2nd Annual IEEE Kansas Power and Energy Conference, KPEC 2021, Manhattan, United States, 19/04/21 - 20/04/21. https://doi.org/10.1109/KPEC51835.2021.9446204, https://doi.org/10.1109/KPEC51835.2021.9446204

TY - CONF

T1 - Dynamic Interaction of Grid-Forming and Grid-Following Inverters with Synchronous Generators in Hybrid Power Plants

AU - Sajadi, Amirhossein

AU - Kenyon, Rick Wallace

AU - Bossart, Matthew

AU - Hodge, Bri Mathias

PY - 2021

Y1 - 2021

N2 - As the integration of renewable energy resources such as wind and solar generation continues to grow, the use of hybrid power plants with both synchronous machines and power electronic inverters operating in parallel becomes more common. This paper studies the impact on small-signal stability for these pairs of devices, first as an isolated two-device system and then as part of a 9-bus test system. Each operational scenario was studied with both a grid-following inverter and a grid-forming inverter. In each scenario, the state variables associated with the synchronous generator’s excitation system were found to be responsible for the inception of instability. These results underscore the importance of accurate modeling of excitation systems when modeling power systems with hybrid power plants.

AB - As the integration of renewable energy resources such as wind and solar generation continues to grow, the use of hybrid power plants with both synchronous machines and power electronic inverters operating in parallel becomes more common. This paper studies the impact on small-signal stability for these pairs of devices, first as an isolated two-device system and then as part of a 9-bus test system. Each operational scenario was studied with both a grid-following inverter and a grid-forming inverter. In each scenario, the state variables associated with the synchronous generator’s excitation system were found to be responsible for the inception of instability. These results underscore the importance of accurate modeling of excitation systems when modeling power systems with hybrid power plants.

KW - Hybrid power plant

KW - Inverter-based resources

KW - Power system dynamic stability

KW - Renewable energy

KW - Synchronous machine

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T2 - 2nd Annual IEEE Kansas Power and Energy Conference, KPEC 2021

Y2 - 19 April 2021 through 20 April 2021

ER -

Dynamic Interaction of Grid-Forming and Grid-Following Inverters with Synchronous Generators in Hybrid Power Plants

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

Access to Document

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