In recent times there is change in the concept of mobility. From a car with internal combustion we go to a car with a hybrid or electric drive. At first, the batteries that were available in cars were small capacities, but with the improvement of technology, these capacities are getting bigger. On the other hand, infrastructure has also begun to expand. Electric charging stations are becoming more and more dense distributed. Except in cities, it is also necessary to set up on the motorways if we want this to become the primary mode of transport. The so-called slow chargers (AC chargers) are with power up to 22 kW on connector and are usually placed in the cities. On highways, however, we want to »pour« as much electricity as possible as soon as possible. To ensure this, it is necessary to raise the power of the charging stations, the so-called fast chargers (DC chargers). There are fast - 50 kW on connector and ultra fast charging stations – more than 100 kW on connector.
This helps us to have instances in which we can not provide the necessary conditions in the network to install an electric charging station, or that the power supply or power is not sufficient. Overdimensioned electrical system is becoming too weak and can not ensure the operating conditions of the electric charging station and consequently the consumers to fill the car and continue their journey. In such cases, other solutions need to be found.
In the master's thesis, another way will be clarified, in addition to the inadequate connection power of the network, we will put charging station with higher power. This will be done using BESS. Since this is not so cheap technology at this time, proper specifications such as power and capacity should be properly choosed. This will also be the goal of this master's thesis.
Data on the historical use of charging station and other data is provided by Petrol d. d..
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