4 papers
Feature- and Structure-Preserving Network Reduction for Large-Scale Transmission Grids
Julia Sistermanns, Matthias Hotz, Dominic Hewes +2
Many countries are currently challenged with the extensive integration of renewable energy sources, which necessitates vast capacity expansion measures. These measures in turn requ…
Network-Constrained Robust Unit Commitment for Hybrid AC/DC Transmission Grids
L. P. M. I. Sampath, M. Hotz, H. B. Gooi +1
The day-ahead energy and reserve management with transmission restrictions and voltage security limits is a challenging task for large-scale power systems in the presence of real-t…
hynet: An Optimal Power Flow Framework for Hybrid AC/DC Power Systems
Matthias Hotz, Wolfgang Utschick
High-voltage direct current (HVDC) systems are increasingly incorporated into today's AC power grids, necessitating optimal power flow (OPF) tools for the analysis, planning, and o…
Reducing the Need for New Lines in Germany's Energy Transition: The Hybrid Transmission Grid Architecture
Matthias Hotz, Irina Boiarchuk, Dominic Hewes +2
The energy transition will lead to an imbalance in electric power generation and demand along the north-south axis of Germany. To manage this imbalance, the transmission system ope…