collaborators

5 papers

eess.SY2025

Momentum-Accelerated Online Feedback Optimization for Power System Flexibility

Florian Klein-Helmkamp, Matthis Berger, Irina Zettl +1

Flexibility is increasingly gaining importance in modern power system operation. This paper presents a controller framework based on Online Feedback Optimization for real-time coor…

eess.SY2025

Dynamic Modeling, Analysis, and Validation of Dual-Port Grid-Forming Control for Hybrid AC/DC Systems

Irina Subotić, Dominic Groß, Alexander Winkens +3

This work investigates the transient and dynamical behavior of hybrid AC/DC systems using dual-port grid-forming (GFM) control. A generalized modeling framework for hybrid AC/DC ne…

eess.SY2025

Stability and Performance of Online Feedback Optimization for Distribution Grid Flexibility

Florian Klein-Helmkamp, Tina Möllemann, Irina Zettl +1

The integration of distributed energy resources (DERs) into sub-transmission systems has enabled new opportunities for flexibility provision in ancillary services such as frequency…

eess.SY2025

Graph-based Impact Analysis of Cyber-Attacks on Behind-the-Meter Infrastructure

Immanuel Hacker, Ömer Sen, Florian Klein-Helmkamp +1

Behind-the-Meter assets are getting more interconnected to realise new applications like flexible tariffs. Cyber-attacks on the resulting control infrastructure may impact a large…

eess.SY2024

Safe Trajectory Sets for Online Operation of Power Systems under Uncertainty

Florian Klein-Helmkamp, Tina Möllemann, Irina Zettl +2

Flexibility provision from active distribution grids requires efficient and robust methods of optimization and control suitable to online operation. In this paper we introduce cond…