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Main Authors: Conte, Francesco, Mancilla-David, Fernando, Sagar, Amritansh, Li, Chendan, Silvestro, Federico, Grillo, Samuele
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2506.16257
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author Conte, Francesco
Mancilla-David, Fernando
Sagar, Amritansh
Li, Chendan
Silvestro, Federico
Grillo, Samuele
author_facet Conte, Francesco
Mancilla-David, Fernando
Sagar, Amritansh
Li, Chendan
Silvestro, Federico
Grillo, Samuele
contents This paper presents a detailed small-signal stability analysis of a modified version of the Cigré European high-voltage network, where one of the synchronous generators is replaced by a grid-following inverter-based resource (IBR). The analysis focuses on the influence of the parameters defining the grid-following IBR control scheme on the stability of the system. Given a set of potential grid configurations and the value of the IBR control parameters, stability is verified by the direct eigenvalue analysis of a high-detailed linearized model of the overall Cigré network. Starting from this procedure, we propose an adaptive sampling method for training a support vector machine classifier able to estimate the probability of stability of the power system over a domain defined by candidate intervals of the considered parameters. The training of the classifier is refined to identify with more accuracy the boundaries of the parameters' stability regions. The obtained results are then compared with those obtained by representing the grid with the classical Thévenin equivalent. Results suggest that, when the Thévenin equivalent is accurate, the predicted stability region is conservative yet contained within that of the full network.
format Preprint
id arxiv_https___arxiv_org_abs_2506_16257
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Detailed Small-Signal Stability Analysis of the Cigré High-Voltage Network Penetrated by Grid-Following Inverter-Based Resources
Conte, Francesco
Mancilla-David, Fernando
Sagar, Amritansh
Li, Chendan
Silvestro, Federico
Grillo, Samuele
Systems and Control
This paper presents a detailed small-signal stability analysis of a modified version of the Cigré European high-voltage network, where one of the synchronous generators is replaced by a grid-following inverter-based resource (IBR). The analysis focuses on the influence of the parameters defining the grid-following IBR control scheme on the stability of the system. Given a set of potential grid configurations and the value of the IBR control parameters, stability is verified by the direct eigenvalue analysis of a high-detailed linearized model of the overall Cigré network. Starting from this procedure, we propose an adaptive sampling method for training a support vector machine classifier able to estimate the probability of stability of the power system over a domain defined by candidate intervals of the considered parameters. The training of the classifier is refined to identify with more accuracy the boundaries of the parameters' stability regions. The obtained results are then compared with those obtained by representing the grid with the classical Thévenin equivalent. Results suggest that, when the Thévenin equivalent is accurate, the predicted stability region is conservative yet contained within that of the full network.
title Detailed Small-Signal Stability Analysis of the Cigré High-Voltage Network Penetrated by Grid-Following Inverter-Based Resources
topic Systems and Control
url https://arxiv.org/abs/2506.16257