Press Releases / Pressemitteilungen

To Jump or not to Jump - Impact of Renewables and Trading on Power Grid Frequency fluctuations

PRESS RELEASE 08 January 2018

Published on in PRESS RELEASES

 

Published by MAX PLANCK INSTITUTE FOR DYNAMICS UND SELF-ORGANIZATION
Co-published: TECHNISCHE UNIVERSITÄT DRESDEN / CFAED – CENTER FOR ADVANCING ELECTRONICS DRESDEN

Our daily life depends more than ever on a reliable electrical supply. However, the ongoing energy transition poses new challenges to the electrical power grid and its operators. For the integration of additional renewable generation into the power grid, it is often proposed to split the grid into smaller autonomous cells, also called “microgrids”. Thereby, a village with a combined heat and power unit and added wind and photovoltaic generators could operate mostly independently without drawing energy from the grid. But how does splitting a large grid into smaller cells and adding more renewable generators affect the reliability of the electrical supply? Benjamin Schäfer and Marc Timme, scientists at the Max Planck Institute for Dynamics and Self-Organization in Göttingen and the Center for Advancing Electronics Dresden (cfaed) at Technische Universität Dresden, Germany, analysed power grid frequency fluctuation in different regions in the world together with colleagues from the Forschungszentrum Jülich (Germany), Queen Mary University of London (Great Britain) and the University of Tokyo (Japan). They formulated mathematical models to predict the effect of power fluctuations on the grid frequency. The results are now published in the article „Non-Gaussian Power Grid Frequency Fluctuations Characterized by Lévy-stable Laws and Superstatistics“, at Nature Energy.

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Akademie der Wissenschaften in Hamburg: Verleihung des Hamburger Wissenschaftspreises am 17. November 2017

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Foto: Thomas Hartmann Fotodesign

[Pressemitteilung der Akademie der Wissenschaften in Hamburg, 9.11.2017]

Die Akademie der Wissenschaften in Hamburg verleiht am 17. November 2017 um 11 Uhr im Kaisersaal des Hamburger Rathauses den Hamburger Wissenschaftspreis 2017 zum Thema "Energieeffizienz“. Der Festakt steht unter der Schirmherrschaft des Ersten Bürgermeisters der Freien und Hansestadt Hamburg, Herrn Olaf Scholz. Preisträger sind die Chemiker Xinliang Feng vom Center for Advancing Electronics Dresden an der Technischen Universität Dresden und Klaus Müllen vom Max-Planck-Institut für Polymerforschung Mainz. Der Hamburger Wissenschaftspreis ist mit 100.000 Euro dotiert und wird gestiftet von der Hamburgischen Stiftung für Wissenschaften, Entwicklung und Kultur Helmut und Hannelore Greve.

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From Brain Function and Communication Networks to Power Grids

New Strategic Chair for Network Dynamics at TU Dresden´s cfaed / Inaugural Lecture on 24th of October

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[Deutsche Version unter "read more..."]

The TU Dresden (TUD) has extended the Center of Excellence Center for Advancing Electronics Dresden (cfaed) by a fifth Strategic Professorship. Prof. Marc Timme from the Max Planck Institute for Dynamics and Self-Organization in Göttingen moved to the Elbe river in July 2017 and will continue his internationally successful research in the field of network dynamics at the TUD under the umbrella of cfaed. With the beginning of the current winter semester, his first courses start in Dresden.

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Neighbours as Research Partners - Science Unlimited

DRESDEN-concept establishes closer links to the Wrocław science landscape

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Photo: Maciey Borkowicz

[Press release from DRESDEN-concept, 22 Sept 2017]
[Deutsche Version unter "read more..."]

The DRESDEN-concept (DDc) science exhibition continues its international tour. Today, the exhibition was opened at Plac Solny (Salt Market), one of the most central squares in Wrocław. It will inform the city residents and visitors about the Dresden science landscape for the next three weeks. The opening event on 22 September 2017 was attended by Prof. Hans Müller-Steinhagen, Chairman of the DDc Executive Board and members of TU Dresden’s Senior Management, the Saxon State Secretary Uwe Gaul, the Lord Mayor of the State Capital Dresden Dirk Hilbert, and numerous directors of the DDc partner institutions. The Mayor of Wrocław, as well as the rectors of the five Wrocław-based universities were also in attendance (the Wrocław University, the Technical, the Medical, the Economic and the Natural Sciences Universities).

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Researchers from TU Dresden and CiQUS Obtain Decacene, the Largest Acene Synthesised Ever

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STM picture of a single Decacene molecule. Copyright: TU Dresden

[Press release from TU Dresden, 14 August 2017]

Acenes are molecules formed by the linear fusion of special carbon-based hexagons, widely known as ‘benzene rings’. In spite of its structural simplicity, these molecules have attracted huge attention due to their unique electronic properties; pentacene, for example, a member of this family with five linear rings, is considered as one of the most relevant organic semiconductor to build photoelectronic devices, while larger acenes present intriguing properties that have fascinated scientists for decades. However, long acenes are unstable molecules, which cannot be found in natural sources. The obvious alternative is to access these molecules by chemical synthesis, but this approach becomes more challenging as the length of the molecule increases. In fact, nonacene (nine rings linearly fused) was the largest acene detected to date in 2010.

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