Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Smart Grid Test as Part of the Energy Transition

23.12.2013
At a special lab in Erlangen, Siemens' global research unit Corporate Technology (CT) is testing how smart grids will work in the future.

As reported in the research magazine Pictures of the Future, researchers in the 170 square meter lab can simulate almost any smart grid because the facility is equipped with control cabinets full of batteries as well as with a cogeneration plant, an emergency power unit, an adjustable local grid transformer, various loads and converters, two refrigeration units, and a water purification plant.



The team can create a wide variety of miniature versions of smart grids. That's because the lab's diesel generator can also take on the roles of a combined-cycle power plant or a biomass reactor. In these simulations, the ratio of fluctuating to conventional sources of energy corresponds to that of the real-life electricity market. Smart grids will become common in a few years. When fluctuating sources of energy further increase their share of the grid, smart control systems have to ensure that the distributed energy producers interact perfectly with large power plants, as otherwise there is a risk of instabilities and even power outages that can cause considerable damage.

This is exactly what the CT researchers in Erlangen are preventing in their tests. Among other things, they simulate a high level of incident solar radiation so that the photovoltaic system's converter supplies a lot of electricity. When this causes an excess supply of energy in the grid, voltage and frequency increase. To deal with this situation, the researchers adjust the converter's parameters so that they help stabilize the grid instead of unrestrainedly feeding their maximum output into the power network.

The test lab also has a scenario in which the power grid breaks down. The distributed energy producers such as the battery and the photovoltaic system then have to get the power grid up and running again. To perform such a black start, the researchers synchronize the various components so that they all raise the supply voltage to the specified value at the same rate and the power demand of the associated loads is equally distributed between the various energy sources. The researchers set the internal control units so that the converters synchronize themselves on the basis of the voltage and frequency information and ensure stable operation.

The work at the lab in Erlangen provides researchers with a foretaste of the challenges that grid operators face during Germany's energy transition. The operators have to connect countless photovoltaic systems, wind turbines, and biomass reactors with conventional power stations and energy storage systems and create a stable power grid. From 2011 until the fall of 2013, Siemens and the power utility company Allgäuer Überlandwerk studied how this could look in practice. To do this, the two partners examined the network around the village of Wildpoldsried in Bavaria. Here, the village's 2,500 inhabitants sometimes produce five times as much electricity from renewable sources as they themselves consume.

Dr. Norbert Aschenbrenner | Siemens InnovationNews
Further information:
http://www.siemens.com/innovationnews

More articles from Power and Electrical Engineering:

nachricht Electromagnetic water cloak eliminates drag and wake
12.12.2017 | Duke University

nachricht Two holograms in one surface
12.12.2017 | California Institute of Technology

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: Long-lived storage of a photonic qubit for worldwide teleportation

MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.

Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...

Im Focus: Electromagnetic water cloak eliminates drag and wake

Detailed calculations show water cloaks are feasible with today's technology

Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...

Im Focus: Scientists channel graphene to understand filtration and ion transport into cells

Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.

To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...

Im Focus: Towards data storage at the single molecule level

The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.

Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...

Im Focus: Successful Mechanical Testing of Nanowires

With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong

Light-weight and simultaneously strong – porous metallic nanomaterials promise interesting applications as, for instance, for future aeroplanes with enhanced...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

AKL’18: The opportunities and challenges of digitalization in the laser industry

07.12.2017 | Event News

 
Latest News

A whole-body approach to understanding chemosensory cells

13.12.2017 | Health and Medicine

Water without windows: Capturing water vapor inside an electron microscope

13.12.2017 | Physics and Astronomy

Cellular Self-Digestion Process Triggers Autoimmune Disease

13.12.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>