Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Stable grid despite flexible feed-in

13.11.2015

Grid frequency and voltage must remain stable for a reliable supply of consumers. However, wind energy and solar power systems provide electrical energy intermittently. How power supply can still function reliably is outlined in the BINE Projektinfo brochure ‘Stable grid with 100 per cent green electricity’ (06/2015).

Researchers model electricity grid with 100 per cent renewable energy


Illustration of the topological distribution of grid nodes in Germany with the corresponding ratio of offered to demanded energy.

© Fraunhofer-Institut für Windenergie und Energiesystemtechnik IWES, Kassel

As part of the research project ‘Combined Power Plant 2’, scientists demonstrated that renewable energy can also offer so-called ancillary services. These services support the grid by ensuring that the energy provided is equal to the energy demanded at all times.

Grid inertia is lowered whenever the power supply is fully covered by renewable energy. Technically, wind turbines and solar power systems are fast enough to compensate for this. The power electronics of PV systems can provide primary balancing power within milliseconds, while wind turbines need approximately five seconds.

Voltage stability is another ancillary service that can be provided by renewable energy in the future. Within a given grid level, the voltage may fluctuate by a maximum of ten per cent. Only then can the system remain stable, avoiding damage to insulators and components. The scientists designed a set of rules for the use of renewables with which they can keep the voltage within a predetermined voltage range regardless of the season.

The research project ‘Combined Power Plant 2’ was carried out under the leadership of the Fraunhofer Institute for Wind Energy and Energy System Technology (IWES).

The BINE-Projektinfo brochure “Testing towers and foundations” (05/2015) follow this link:

http://www.bine.info/en/press/press-releases/archive-press-releases/pressemittei...

Uwe Milles/Birgit Schneider
presse(at)bine.info

About BINE Information Service

Energy research for practical applications

The BINE Information Service reports on energy research topics, such as new materials, systems and components, as well as innovative concepts and methods. The knowledge gained is incorporated into the implementation of new technologies in practice, because first-rate information provides a basis for pioneering decisions, whether in the planning of energy-optimised buildings, increasing the efficiency of industrial processes, or integrating renewable energy sources into existing systems.

About FIZ Karlsruhe

FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is a not-for-profit organization with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation.
Our business areas:
• STN International – the world’s leading online service for research and patent information in science and technology
• KnowEsis – innovative eScience solutions to support the process of research in all its stages, and throughout all scientific disciplines
• Databases and Information Services – Databases and science portals in mathematics, computer science, crystallography, chemistry, and energy technology
FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.

Weitere Informationen:

http://www.bine.info/en - BINE-Informationsdienst

Rüdiger Mack | idw - Informationsdienst Wissenschaft

More articles from Power and Electrical Engineering:

nachricht A big nano boost for solar cells
18.01.2017 | Kyoto University and Osaka Gas effort doubles current efficiencies

nachricht Multiregional brain on a chip
16.01.2017 | Harvard John A. Paulson School of Engineering and Applied Sciences

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

Helmholtz International Fellow Award for Sarah Amalia Teichmann

20.01.2017 | Awards Funding

An innovative high-performance material: biofibers made from green lacewing silk

20.01.2017 | Materials Sciences

Ion treatments for cardiac arrhythmia — Non-invasive alternative to catheter-based surgery

20.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>