Passivity-Based Robust Stability Analysis of the Converter–Grid Interaction and Passivity-Shaping Controller Design
Kowalewski J, Lorenz A, Thomas F, Valenzuela RAA, Graichen K (2025)
Publication Type: Journal article
Publication year: 2025
Journal
Book Volume: 19
Article Number: e70090
Journal Issue: 1
DOI: 10.1049/gtd2.70090
Abstract
With the increasing integration of high-voltage direct current (HVDC) systems based on modular multilevel converter (MMC) technology in the power grid, the stability of the transmission system is increasingly affected. Guaranteeing robust stability for the AC-side converter–grid interaction presents a challenge due to uncertain and time-varying grid conditions. Passivity based stability criteria offer a powerful approach to assess converter-driven stability. Passivity indices are utilized to evaluate and shape the converter input admittance. In this paper, existing passivity-based stability theorems are examined and one less restricting and one less conservative stability criterion is derived. Additionally, a multi-objective passivity-shaping controller design is proposed that combines requirements for both robust stability and robust performance in a joint optimization.
Authors with CRIS profile
Julia Kowalewski
Chair of Automatic Control (LRT/AC)
Fynn Thomas
Chair of Automatic Control (LRT/AC)
Knut Graichen
Chair of Automatic Control (LRT/AC)
Involved external institutions
Germany (DE)How to cite
APA:
Kowalewski, J., Lorenz, A., Thomas, F., Valenzuela, R.A.A., & Graichen, K. (2025). Passivity-Based Robust Stability Analysis of the Converter–Grid Interaction and Passivity-Shaping Controller Design. IET Generation Transmission & Distribution, 19(1). https://doi.org/10.1049/gtd2.70090
MLA:
Kowalewski, Julia, et al. "Passivity-Based Robust Stability Analysis of the Converter–Grid Interaction and Passivity-Shaping Controller Design." IET Generation Transmission & Distribution 19.1 (2025).
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