A charging station 1 comprising: an input circuit 3 connecting the charging station 1 to an electrical power source 2 and providing a first intermediate DC voltage DC1; a DC/DC converter 4 receiving the first intermediate DC voltage DC1 and providing a second DC voltage DC2; an electrical DC charging buffer 6 connected to the DC/DC converter 4; and an output circuit 7 converting the second intermediate DC voltage DC2to the DC current or AC current requested by the electric vehicles 9. The buffer, which may be a buffer battery 6, may be connected to the output of the DC/DC converter 4. The electrical power source 2 may be a utility grid or may be a DC source such as a solar power generator. The output current may be measured and the DC/DC converter 4 controlled such that power consumed by the input circuit 3 does not exceed a threshold.
Charging station for electric vehicles
2019-10-16
Patent
Elektronische Ressource
Englisch