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Stability boundary analysis of grid-forming and grid-following inverters

Stability boundary analysis of grid-forming and grid-following inverters
Stability boundary analysis of grid-forming and grid-following inverters
Stability issues and oscillations associated with inverter-based resources (IBRs) are of increasing concern in inverter-dominated power systems. This study explores the stability boundary of grid-following (GFL) and grid-forming (GFM) inverters and performs a sensitivity analysis for the most relevant control and grid parameters. A stability boundary tracking (SBT) algorithm is proposed, which can identify the stability boundary relating up to three parameters of interest for both GFL and GFM inverters. This boundary is then illustrated as two-dimensional stability curve or three-dimensional stability surface to facilitate understanding the impact of certain parameters on the stability margin. A comprehensive sensitivity analysis of different controller parameters as well as power factor and line R/X ratio draws parallels on their impact to GFL and GFM stability.
GRID STRENGTH, STABILITY CRITERIA, GRID-FOLLOWING (GFL) INVERTER, GRIDFORMING (GFM) INVERTER, SMALL-SIGNAL ANALYSIS
Luo, Xi
cfaf6d5c-15fa-4c03-bdca-9e3d80ea448a
Batzelis, Efstratios
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Singh, Abhinav
6df7029f-21e3-4a06-b5f7-da46f35fc8d3
Saridaki, Georgia
372ad773-adc3-4146-9c72-34a7f8e2b628
Kotsampopoulos, Panos
5e386e8f-aa83-4798-a8c3-c4ab65390fe9
Luo, Xi
cfaf6d5c-15fa-4c03-bdca-9e3d80ea448a
Batzelis, Efstratios
2a85086e-e403-443c-81a6-e3b4ee16ae5e
Singh, Abhinav
6df7029f-21e3-4a06-b5f7-da46f35fc8d3
Saridaki, Georgia
372ad773-adc3-4146-9c72-34a7f8e2b628
Kotsampopoulos, Panos
5e386e8f-aa83-4798-a8c3-c4ab65390fe9

Luo, Xi, Batzelis, Efstratios, Singh, Abhinav, Saridaki, Georgia and Kotsampopoulos, Panos (2024) Stability boundary analysis of grid-forming and grid-following inverters. MedPower2024: 14th Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion, Royal Olympic Hotel, Athens, Greece. 03 - 06 Nov 2024. 6 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Stability issues and oscillations associated with inverter-based resources (IBRs) are of increasing concern in inverter-dominated power systems. This study explores the stability boundary of grid-following (GFL) and grid-forming (GFM) inverters and performs a sensitivity analysis for the most relevant control and grid parameters. A stability boundary tracking (SBT) algorithm is proposed, which can identify the stability boundary relating up to three parameters of interest for both GFL and GFM inverters. This boundary is then illustrated as two-dimensional stability curve or three-dimensional stability surface to facilitate understanding the impact of certain parameters on the stability margin. A comprehensive sensitivity analysis of different controller parameters as well as power factor and line R/X ratio draws parallels on their impact to GFL and GFM stability.

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MedPower2024_full_paper_2576 - Accepted Manuscript
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More information

Accepted/In Press date: 29 August 2024
Published date: November 2024
Venue - Dates: MedPower2024: 14th Mediterranean Conference on Power Generation, Transmission, Distribution and Energy Conversion, Royal Olympic Hotel, Athens, Greece, 2024-11-03 - 2024-11-06
Keywords: GRID STRENGTH, STABILITY CRITERIA, GRID-FOLLOWING (GFL) INVERTER, GRIDFORMING (GFM) INVERTER, SMALL-SIGNAL ANALYSIS

Identifiers

Local EPrints ID: 495949
URI: http://eprints.soton.ac.uk/id/eprint/495949
PURE UUID: e8519a48-6ce0-4048-8307-836839c6a2eb
ORCID for Efstratios Batzelis: ORCID iD orcid.org/0000-0002-2967-3677
ORCID for Abhinav Singh: ORCID iD orcid.org/0000-0003-3376-6435

Catalogue record

Date deposited: 28 Nov 2024 17:31
Last modified: 30 Nov 2024 03:06

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Contributors

Author: Xi Luo
Author: Efstratios Batzelis ORCID iD
Author: Abhinav Singh ORCID iD
Author: Georgia Saridaki
Author: Panos Kotsampopoulos

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