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8.2.18
MASTER-MULTI-SLAVE connection
In this type of connection, the chargers share, in a balanced way, the available power between
them and the rest of the loads in the system.
One of the chargers is identified as the MASTER and it is connected to the external power meter,
which measures the total power flow in the system.
The other chargers, defined as the SLAVEs, are connected to the MASTER through the ethernet
cable or by the wifi interface (in both cases a network equipment is needed) and receive from
the MASTER the instructions about how sharing the power.
The sharing algorithm between the chargers follows a priority scheme privileging the first
charger which starts recharging.
An example of the sharing algorithm, considering a four-charger scenario, is presented in the
following paragraph table.
Load
Load
Inverter