Electrically powered vehicles represent an option to replace fossil fuel. Distributed charging stations are essential to ensure mobility. Charging stations not only charge electric vehicles' traction batteries, they also function as an interface between vehicles and the grid. Two different types of charging stations have been developed for research projects and academic programs and will be presented in the paper

In this contribution power quality measurements of electric vehicles (EVs) will be presented. In the coming years EVs will become a more relevant asset in the power system. Due to infrastructural reasons and typical usage the EVs will be mainly connected to the low voltage power grid. That includes charging and - in case of vehicle-to-grid concepts - discharging processes with different power levels. The investigation of different kinds of EVs considers voltage drops, harmonics and power factors that allow for scaling up the impact on the power system. To interpret the results common standards and technical requirements are taken into account that describes the connection of loads as well as generators to the grid

Due to rising fuel consumption, price of CO 2 emissions and growing urban air pollution, the global interest of the automobile industry, politics and scientists in electric mobility is increasing in the recent years worldwide. Thus, future challenges will be the integration of electric vehicles in distribution networks under the scope of balancing multiple charging processes while, at the same time, increasing dispersed generation. The development of a controlled battery charger for traction batteries aims to reduce the peak load and to shift energy demand.

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