5 papers
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…
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…
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…
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…
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…