Dynamic Power Distribution - Siemens SICHARGE D Operating Instructions Manual

Description

3.8 Dynamic power distribution

The cable management, the radial fan (
located under the cover.
3.8 Dynamic power distribution
The dynamic power distribution is a basic feature of every SICHARGE D charging station.
Depending on the charging power required by the vehicle, the charging station first reserves
the unused converter groups for charging the vehicle. The "First come, first serve" principle
applies when allocating the reserved charging power. If all converter groups are used and
another vehicle connects, then the new vehicle gets at least the converter group assigned
primarily to the port for charging.
The charging station detects when the charging power requested by the vehicle decreases. In
this case, the charging station releases converter groups that are no longer needed during a
charging process. The available charging power is optimally utilized in this way. For example,
additional power is made available while the charging process is already running.
Defective converters are detected autonomously. The available charging power of the group
is automatically reduced and the group is still available. This maximizes the availability of the
charging station.
Depending on the configuration and the associated structure, the performance of the
dynamic power distribution of the charging station differs. In the Low Flex variant, the
charging station has two converter groups. The two converter groups are fed separately or
together from a DC charging outlet.
In the High Flex variant, the charging station has four converter groups. The charging power
of the converter groups is distributed to the individual outlets as required and fully
automated via the switching matrix. Due to the higher modularity compared to the Low Flex
variant, the reservation of charging power is more precisely adapted to the needs of the
vehicle. Converter groups that are not required are thus available at the other DC charging
outlets or are released more quickly during a charging process. As a result, the charging
station reacts very flexibly to various scenarios and offers the user the optimal charging
performance.
46
⑥
) and the outlets for the charging cables are
Operating Instructions, 11/2023, A5E50556539-AG
SICHARGE D