no code implementations • 29 May 2024 • Hallah Shahid Butt, Benjamin Schäfer
With economic development, the complexity of infrastructure has increased drastically.
no code implementations • 7 Nov 2023 • Wenlong Liao, Benjamin Schäfer, Dalin Qin, Gonghao Zhang, Zhixian Wang, Zhe Yang
To reduce the heavy computational burden of reactive power optimization of distribution networks, machine learning models are receiving increasing attention.
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.
1 code implementation • 19 Jun 2023 • Matthias Hertel, Maximilian Beichter, Benedikt Heidrich, Oliver Neumann, Benjamin Schäfer, Ralf Mikut, Veit Hagenmeyer
We evaluate whether a Transformer load forecasting model benefits from a transfer learning strategy, where a global univariate model is trained on the load time series from multiple clients.
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 • 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 • 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 Sep 2022 • Thorbjørn Lund Onsaker, Heidi S. Nygård, Damià Gomila, Pere Colet, Ralf Mikut, Richard Jumar, Heiko Maass, Uwe Kühnapfel, Veit Hagenmeyer, Benjamin Schäfer
In the present paper, we utilize measurements of the power grid frequency obtained in European islands: the Faroe Islands, Ireland, the Balearic Islands and Iceland and investigate how their frequency can be predicted, compared to the Nordic power system, acting as a reference.
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 • 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.
no code implementations • 6 Sep 2021 • Eder Batista Tchawou Tchuisseu, Eric-Donald Ndogmo, Pavel Procházka, Paul Woafo, Pere Colet, Benjamin Schäfer
Even more interesting, while we only consider secondary frequency control, we observe a stabilizing effect on the voltage dynamics, especially in our numerical bulk analysis.
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 • 2 Jun 2020 • Richard Jumar, Heiko Maaß, Benjamin Schäfer, Leonardo Rydin Gorjão, Veit Hagenmeyer
Data were collected using a self-developed measurement instrument, the Electrical Data Recorder (EDR), connected mostly to conventional power sockets.
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.