Friday, September 21, 2012

How can electric cars be charged with electricity from wind power and give power back to the grid ?

Smart grids

How can electric cars be charged with electricity from wind power and give power back to the grid? It's all about "smart grids", i.e. smart grid that can handle large fluctuations in the grid that comes with renewable energy such as wind turbines. In the case of charging the electric vehicles, it is interesting to see how electricity is transmitted from the network to the vehicle, and there are different strategies and work is under way to define standards in the field. In Test Site Sweden we are working with the automotive and power industries to test and validate the charging interfaces.

Interactive Smart Grid Technology Demonstrators

The continued work with Smart Charging systems at ANL led to the development of interactive displays that demonstrated the benefits of smart charging and smart grid as well as the vehicle to grid interfaces present in such systems. Two generations of the interactive smart grid display was developed, the first one is shown below and was demonstrated at the Technology Transfer Meeting May 11th in Gothenburg and at the Electric Vehicle Symposium short after.

Generation 1 of the interactive Smart Grid Display (Argonne National Laboratory)

The second generation of the display was developed by ANL for the Bright Green Expo.


Generation 2 of the interactive Smart Grid Display (Argonne National Laboratory)


Demonstration of a Smart Charge application for mobile phones

The demonstration was developed by TSS and Consat Engineering AB to show how managing charging could be performed using a mobile phone. The demonstration is available as a flash – movie and shows how the driver can reserve a park and charge spot and also manage the charge process. A screen shot from the demonstration is shown.




Smart Grid Technology explained

As our attention turns to new cars that run partially or completely on electricity, how can we redesign our electric grid to not only handle the new load, but make electricity cheap and efficient for everyone? Argonne engineer Ted Bohn explains a model of a "smart grid" that gives consumers the power to choose their own prices and sources of electricity.


Charging Stations


In order to test and validate the charging of EVs we have developed the ChargeAlyzor which is a combination of a charging station and a oscilloscope. By this you can very accurately measure and monitor the voltage and current feed into the vehicle.


The ChargeAlyzor (Test Site Sweden)





Source: TestSiteSweden

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