no code implementations • 14 Mar 2024 • Carsten Hartmann, Philipp C. Böttcher, David Gross, Dirk Witthaut
Synchronization is essential for the operation of AC power systems: All generators in the power grid must rotate with fixed relative phases to enable a steady flow of electric power.
no code implementations • 23 Nov 2023 • Hannes Hilger, Dirk Witthaut, Manuel Dahmen, Leonardo Rydin Gorjao, Julius Trebbien, Eike Cramer
Additionally, our analysis highlights how our improvements towards adaptations in changing regimes allow the normalizing flow to adapt to changing market conditions and enable continued sampling of high-quality day-ahead price scenarios.
no code implementations • 5 Oct 2023 • Julius Trebbien, Sebastian Pütz, Benjamin Schäfer, Heidi S. Nygård, Leonardo Rydin Gorjão, Dirk Witthaut
Accurate forecasts of electricity prices are crucial for the management of electric power systems and the development of smart applications.
no code implementations • 24 Jul 2023 • Maurizio Titz, Sebastian Pütz, Dirk Witthaut
The transition to a sustainable energy supply challenges the operation of electric power systems in manifold ways.
no code implementations • 30 Mar 2023 • Sebatian Pütz, Johannes Kruse, Dirk Witthaut, Veit Hagenmeyer, Benjamin Schäfer
Therefore, the electrical power grid's operation and energy and balancing markets are subject to strict regulations.
Explainable artificial intelligence Explainable Artificial Intelligence (XAI)
no code implementations • 29 Mar 2023 • Philipp C. Böttcher, Leonardo Rydin Gorjão, Dirk Witthaut
First, we explore the stability of an inverter coupled to an infinite grid in an analytic fashion and uncover stability and instability regions.
no code implementations • 9 Dec 2022 • Julius Trebbien, Leonardo Rydin Gorjão, Aaron Praktiknjo, Benjamin Schäfer, Dirk Witthaut
In perfect competition, the merit order principle describes that dispatchable power plants enter the market in the order of their marginal costs to meet the residual load, i. e. the difference of load and renewable generation.
no code implementations • 2 Nov 2022 • Johannes Kruse, Eike Cramer, Benjamin Schäfer, Dirk Witthaut
Finally, we generate synthetic time series from the model, which successfully reproduce central characteristics of the grid frequency such as their heavy-tailed distribution.
no code implementations • 17 Oct 2022 • Maurizio Titz, Franz Kaiser, Johannes Kruse, Dirk Witthaut
In this article we propose a combination of network science metrics and machine learning models to predict the risk of desynchronisation events.
no code implementations • 27 Sep 2022 • Benjamin Schäfer, Thiemo Pesch, Debsankha Manik, Julian Gollenstede, Guosong Lin, Hans-Peter Beck, Dirk Witthaut, Marc Timme
The ongoing energy transition requires power grid extensions to connect renewable generators to consumers and to transfer power among distant areas.
no code implementations • 27 May 2022 • Eike Cramer, Dirk Witthaut, Alexander Mitsos, Manuel Dahmen
This work proposes a probabilistic modeling approach that models the intraday price difference to the day-ahead contracts.
no code implementations • 22 Apr 2022 • Sebastian Pütz, Benjamin Schäfer, Dirk Witthaut, Johannes Kruse
Here, we investigate the interaction of power imbalances - represented through the power grid frequency - and power flows on HVDC links between synchronous areas in Europe.
no code implementations • 7 Dec 2021 • Leonardo Rydin Gorjão, Dirk Witthaut, Pedro G. Lind, Wided Medjroubi
These markets are designed to balance excess or lack of power in short time periods, which leads to a large stochastic variability of the electricity prices.
no code implementations • 2 Dec 2021 • Chengyuan Han, Hannes Hilger, Eva Mix, Philipp C. Böttcher, Mark Reyers, Christian Beck, Dirk Witthaut, Leonardo Rydin Gorjão
Electricity markets are central for the coordination of electric power generation.
no code implementations • 27 Oct 2021 • Eike Cramer, Leonardo Rydin Gorjão, Alexander Mitsos, Benjamin Schäfer, Dirk Witthaut, Manuel Dahmen
The design and operation of modern energy systems are heavily influenced by time-dependent and uncertain parameters, e. g., renewable electricity generation, load-demand, and electricity prices.
1 code implementation • 10 Sep 2021 • Johannes Kruse, Benjamin Schäfer, Dirk Witthaut
Secondary control is key in restoring the power system to its reference following a disturbance.
1 code implementation • 14 Jun 2021 • Johannes Kruse, Benjamin Schäfer, Dirk Witthaut
Deterministic frequency deviations (DFDs) critically affect power grid frequency quality and power system stability.
2 code implementations • 7 Jun 2021 • Johannes Kruse, Benjamin Schäfer, Dirk Witthaut
Stable operation of the electrical power system requires the power grid frequency to stay within strict operational limits.
no code implementations • 24 Mar 2021 • Benjamin Schäfer, Marc Timme, Dirk Witthaut
While particularly large frequency deviations in 2017 are not as frequent as in 2011, large deviations are more likely to occur shortly after the trading instances.
no code implementations • 24 Mar 2021 • Benjamin Schäfer, Dirk Witthaut, Marc Timme
Furthermore, we review a decentral smart grid control scheme to limit these fluctuations.
no code implementations • 17 Apr 2020 • Johannes Kruse, Benjamin Schäfer, Dirk Witthaut
The power grid frequency is the central observable in power system control, as it measures the balance of electrical supply and demand.