126 citations · 199 across the 19 of their papers we have counts for
22 papers
An Approach to Abstract Multi-stage Cyberattack Data Generation for ML-Based IDS in Smart Grids
Ömer Sen, Philipp Malskorn, Simon Glomb +3
Power grids are becoming more digitized, resulting in new opportunities for the grid operation but also new challenges, such as new threats from the cyber-domain. To address these…
Investigation of Multi-stage Attack and Defense Simulation for Data Synthesis
Ömer Sen, Bozhidar Ivanov, Martin Henze +1
The power grid is a critical infrastructure that plays a vital role in modern society. Its availability is of utmost importance, as a loss can endanger human lives. However, with t…
Representation of Distribution Grid Expansion Costs in Power System Planning
Luis Böttcher, Christian Fröhlich, Steffen Kortmann +3
The shift towards clean energy brings about notable transformations to the energy system. In order to optimally plan a future energy system, it is necessary to consider the influen…
Providing Curative Distribution Grid Flexibility Using Online Feedback Optimization
Florian Klein-Helmkamp, Fabian Böhm, Lukas Ortmann +5
Distribution grid flexibility is discussed as a possible measure in curative system operation, yielding a need for an efficient and robust coordination mechanism for the joint flex…
On the Impact of Smartification Strategies for the State Estimation of Low Voltage Grids
Armin Fatemi, Franziska Tischbein, Frank Wirtz +5
The decarbonization of for example the energy or heat sector leads to the transformation of distribution grids. The expansion of decentralized energy resources and the integration…
Investigating the Cybersecurity of Smart Grids Based on Cyber-Physical Twin Approach
Ömer Sen, Florian Schmidtke, Federico Carere +3
While the increasing penetration of information and communication technology into distribution grid brings numerous benefits, it also opens up a new threat landscape, particularly…
On Holistic Multi-Step Cyberattack Detection via a Graph-based Correlation Approach
Ömer Sen, Chijioke Eze, Andreas Ulbig +1
While digitization of distribution grids through information and communications technology brings numerous benefits, it also increases the grid's vulnerability to serious cyber att…
Modelling Residential Supply Tasks Based on Digital Orthophotography Using Machine Learning
Klemens Schumann, Luis Böttcher, Philipp Hälsig +2
In order to achieve the climate targets, electrification of individual mobility is essential. However, grid integration of electrical vehicles poses challenges for the electrical d…
On Specification-based Cyber-Attack Detection in Smart Grids
Ömer Sen Dennis van der Velde, Maik Lühman, Florian Sprünken +4
The transformation of power grids into intelligent cyber-physical systems brings numerous benefits, but also significantly increases the surface for cyber-attacks, demanding approp…
Assessing the impact of cyber attacks manipulating distributed energy resources on power system operation
Philipp Linnartz, Alexander Winkens, Andreas Ulbig
Successful cyber attacks on power systems cause severe disruptions. One possible manipulation strategy is the utilization of distributed energy resources (DERs) to disturb power sy…
On Aggregation Performance in Privacy Conscious Hierarchical Flexibility Coordination Schemes
Thomas Offergeld, Nils Mattus, Florian Schmidtke +1
In this paper we introduce a method for performance quantification of flexibility aggregation in flexibility coordination schemes (FCS), with a focus on privacy preserving hierarch…
A stakeholder-oriented multi-criteria optimization model for decentral multi-energy systems
Nils Körber, Maximilian Röhrig, Andreas Ulbig
The decarbonization of municipal and district energy systems requires economic and ecologic efficient transformation strategies in a wide spectrum of technical options. Especially…
Solving AC Power Flow with Graph Neural Networks under Realistic Constraints
Luis Böttcher, Hinrikus Wolf, Bastian Jung +5
In this paper, we propose a graph neural network architecture to solve the AC power flow problem under realistic constraints. To ensure a safe and resilient operation of distributi…
Investigating Man-in-the-Middle-based False Data Injection in a Smart Grid Laboratory Environment
Ömer Sen, Dennis van der Velde, Philipp Linnartz +4
With the increasing use of information and communication technology in electrical power grids, the security of energy supply is increasingly threatened by cyber-attacks. Traditiona…
Impact of Dynamic Line Rating on Dispatch Decisions and Integration of Variable RES Energy
Bolun Xu, Andreas Ulbig, Goran Andersson
Dynamic line rating (DLR) models the transmission capacity of overhead lines as a function of ambient conditions. It takes advantage of the physical thermal property of overhead li…
Optimal Placement and Sizing of Distributed Battery Storage in Low Voltage Grids using Receding Horizon Control Strategies
Philipp Fortenbacher, Andreas Ulbig, Göran Andersson
In this paper we present a novel methodology for leveraging Receding Horizon Control (RHC), also known as Model Predictive Control (MPC) strategies for distributed battery storage…
Grid Integration Costs of Fluctuating Renewable Energy Sources
Jonas Müller, Marcus Hildmann, Andreas Ulbig +1
The grid integration of intermittent Renewable Energy Sources (RES) causes costs for grid operators due to forecast uncertainty and the resulting production schedule mismatches. Th…
Model Predictive Frequency Control Employing Stability Constraints
Christoph Trabert, Andreas Ulbig, Göran Andersson
In this article a model predictive control (MPC) based frequency control scheme for energy storage units was derived, focusing on the incorporation of stability constraints based o…
A New Frequency Control Reserve Framework based on Energy-Constrained Units
Theodor Borsche, Andreas Ulbig, Göran Andersson
Frequency control reserves are an essential ancillary service in any electric power system, guaranteeing that generation and demand of active power are balanced at all times. Tradi…
Analyzing Operational Flexibility of Power Systems
Andreas Ulbig, Göran Andersson
Operational flexibility is an important property of electric power systems and plays a crucial role for the transition of today's power systems, many of them based on fossil fuels,…
Impact of Low Rotational Inertia on Power System Stability and Operation
Andreas Ulbig, Theodor S. Borsche, Göran Andersson
Large-scale deployment of RES has led to significant generation shares of variable RES in power systems worldwide. RES units, notably inverter-connected wind turbines and PV that a…
Revisiting the Merit-Order Effect of Renewable Energy Sources
Marcus Hildmann, Andreas Ulbig, Göran Andersson
An on-going debate in the energy economics and power market community has raised the question if energy-only power markets are increasingly failing due to growing feed-in shares fr…