11 papers
Linear Approximations Provide Rigorous Conditions for Phase Locking in Oscillator Networks and Power Grids
Iva Bačić, Carsten Hartmann, Philipp C. Böttcher +3
Synchronization is a fundamental collective phenomenon in many natural and engineered networks. The stable operation of oscillator networks, such as electric power grids, requires…
CHAMB-GA: A Containerized HPC Scalable Microservice-Based Framework for Genetic Algorithms
Felix Bonhoff, Thiemo Pesch, Andrea Benigni +2
Metaheuristic-based global optimization with embedded, long-running simulations is a computationally expensive process. To support various stages of development and execution, a se…
A graph theoretic view on small signal stability of inverter-based power grids
Iva Bačić, Jakob Niehues, Philipp C. Böttcher +5
Dynamic grid stability is traditionally ensured with synchronous generators. Modern grids rely substantially more on inverter-based resources, which require grid-forming control to…
Approximability of Electrical Distribution Network Reconfiguration for General Graphs
Christian Wallisch, Andrea Benigni, Carsten Hartmann +1
Electrical distribution networks are regional, medium- and low-voltage power grids connecting energy sources to individual households and businesses with given power demands. While…
Quantum search algorithm for similar subgraph identification under fixed edge removal
Ruben Kara, Sven Danz, Tobias Stollenwerk +1
We introduce a novel quantum algorithm for similar subgraph identification in form of an NP-hard cardinality-constrained binary quadratic optimization problem. Given a weighted ref…
Quantum Technologies and Edge Devices in Electrical Grids: Opportunities, Challenges, and Future Directions
Marjorie Hoegen, René Glebke, M. Sahnawaz Alam +11
In modern power systems, edge devices serve as local hubs that collect data, perform on-site computing, sense electrical parameters, execute control actions, and communicate with n…
Impact of Market Reforms on Deterministic Frequency Deviations in the European Power Grid
Philipp C. Böttcher, Carsten Hartmann, Andrea Benigni +2
Deterministic frequency deviations (DFDs) are systematic and predictable excursions of grid frequency that arise from synchronized generation ramps induced by electricity market sc…
Towards Quantum Algorithms for the Optimization of Spanning Trees: The Power Distribution Grids Use Case
Carsten Hartmann, Nil Rodellas-Gràcia, Christian Wallisch +5
Optimizing the topology of networks is an important challenge across engineering disciplines. In energy systems, network reconfiguration can substantially reduce losses and costs a…
Cyber-Physical Systems on the Megawatt Scale: The impact of battery control on grid frequency stability
Carsten Hartmann, Edoardo De Din, Daniele Carta +9
Electric power systems are undergoing fundamental change. The shift to inverter-based generation challenges frequency stability, while growing digitalisation heightens vulnerabilit…
Symmetry breaking in minimum dissipation networks
Aarathi Parameswaran, Andrea Benigni, Dirk Witthaut +1
Both natural and engineered supply networks exhibit universal structural patterns, such as the formation of loops, yet the principles governing optimal structures remain unclear. T…
Unified algebraic deviation of distribution factors in linear power flow
Joost van Dijk, Nico Westerbeck, Lars Schewe +2
Distribution factors are indispensable tools in the design and analysis of power transmission grids. Recently, they received a renewed interest in the field of topology optimizatio…