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arXiv · 2601.16014

Stability Analysis of Power-Electronics-Dominated Grids Using Scaled Relative Graphs

Eder Baron-Prada·Adolfo Anta·Florian Dörfler
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Abstract

This paper presents a novel approach to stability analysis for grid-connected converters utilizing Scaled Relative Graphs (SRG). Our method effectively decouples grid and converter dynamics, thereby establishing a comprehensive and efficient framework for evaluating closed-loop stability. Our analysis accommodates both linear and non-linear loads, enhancing its practical applicability. Furthermore, we demonstrate that our stability assessment remains unaffected by angular variations resulting from dq-frame transformations, significantly increasing the method's robustness and versatility. The effectiveness of our approach is validated in several simulation case studies, which illustrate its broad applicability in modern power systems.

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Eder Baron-Prada, Adolfo Anta, Florian Dörfler. 2026-01-22. Stability Analysis of Power-Electronics-Dominated Grids Using Scaled Relative Graphs. https://arxiv.org/abs/2601.16014

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