1 citations · 1 across the 1 of their papers we have counts for
7 papers
Influence of Controller Tuning on Cascaded Flexibility Provision with Feedback Optimization
Irina Zettl, Florian Klein-Helmkamp, Florian Schmidtke +2
The coordination of a large number of flexibility-providing units across various grid layers requires innovative control concepts. This is needed, e.g., to allow active distributio…
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 SubotiÄ, Dominic GroÃ, 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…
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…
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…
Tuning a Cascaded Online Feedback Optimization Controller for Provision of Distributed Flexibility
Irina Zettl, Florian Klein-Helmkamp, Florian Schmidtke +2
Coordinating a high number of flexibility providing units (e.g. to provide ancillary services for the transmission system) across various grid layers requires new control concepts.…