Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Smart Grid Test as Part of the Energy Transition

05.02.2013
Siemens and Stadtwerke Krefeld AG (SWK) are converting the electricity network of Wachtendonk, which is located in Germany on the Lower Rhine, into a smart grid.

The two companies want to test the smart grid's behavior and technology in practice. Due to its large share of renewable sources of energy, Wachtendonk serves as a sort of role model for Germany's energy transition.



The town's 8,000 inhabitants get about 80 percent of their electricity from photovoltaic systems or other sources of renewable energy.

As a result of the energy transition, Germany's power grid is being transformed from a demand-controlled "one-way street" into a bidirectional-flow network. Energy can be fed into and out of the system at a variety of locations. However, the amounts of wind and solar power supplied vary. The result is voltage fluctuations in the grid and an increased risk of a power outage in parts of the grid under high load. The power grid of the future will have to offset such fluctuations better by actively monitoring voltages and automatically regulating them.

As part of its grid modernization program, SWK installed empty data transmission line pipes in the Wachtendonk grid in 2010 and ensured that 52 of the 105 local electrical substations were capable of receiving smart grid components. The company is now installing smart meters from Siemens in numerous distribution boxes and at 100 of the town's households.

The smart meters have a power snapshot function, which enables them to take "snapshots" of the current grid condition in addition to supplying data on electricity consumption. The meters also transmit the measurement values to local smart substations, which consist of compact medium-voltage switchgear and adjustable local grid transformers, as well as of remote control systems, grid protection technology, and transmission systems.

State-of-the-art sensor and communications technology makes the substations "smart." The integrated adjustable local grid transformers from Siemens stabilize the grid at the interface between low-voltage and medium-voltage networks. On a cloudless day, for example, the data from the smart meters might show that voltage is increasing while electricity consumption is low.

This would mean that photovoltaic systems are feeding large amounts of power into the grid and the transformer would consequently adjust the voltage. Smart, automated grids are part of Siemens' environmental portfolio, with which the company generated approximately €33 billion in sales in business year 2012.

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

More articles from Power and Electrical Engineering:

nachricht Failures in power grids: Dynamically induced cascades
25.05.2018 | Technische Universität Dresden

nachricht Beyond the limits of conventional electronics: stable organic molecular nanowires
24.05.2018 | Tokyo 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: Powerful IT security for the car of the future – research alliance develops new approaches

The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.

Vehicles already offer diverse communication interfaces and more and more automated functions, such as distance and lane-keeping assist systems. At the same...

Im Focus: Molecular switch will facilitate the development of pioneering electro-optical devices

A research team led by physicists at the Technical University of Munich (TUM) has developed molecular nanoswitches that can be toggled between two structurally different states using an applied voltage. They can serve as the basis for a pioneering class of devices that could replace silicon-based components with organic molecules.

The development of new electronic technologies drives the incessant reduction of functional component sizes. In the context of an international collaborative...

Im Focus: LZH showcases laser material processing of tomorrow at the LASYS 2018

At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.

At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...

Im Focus: Self-illuminating pixels for a new display generation

There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?

At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

In focus: Climate adapted plants

25.05.2018 | Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

 
Latest News

In focus: Climate adapted plants

25.05.2018 | Event News

Flow probes from the 3D printer

25.05.2018 | Machine Engineering

Less is more? Gene switch for healthy aging found

25.05.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>