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GREEN MOTION BUILDING INSTALLATION MANUAL
MN191028EN
January 2022 www.eaton.com
00
Title
8. Load and phase balancing
8.1 Definitions
Eaton load balancing algorithm:
The Eaton load balancing algorithm allows a continuously optimized current
distribution to the EV chargers based on:
•
Maximum available current
•
Number of cars connected
•
Maximum current capacity per car
•
Energy delivered per car
•
Charging stations’ priorities
•
Maximum current capacity of the EV charger.
For load and phase balancing the EV chargers must be online.
Figure 22 . Load balancing algorithm outputs
Tag
Description
1
Green Motion Building EV charger Master
2
Green Motion Building EV charger Node
3
Energy meter
4
Maximum available current for charging (= Maximum current capacity of building – Energy meter reading)
5
Optimal output currents (depending on the Eaton load balancing algorithm)
5
1
4
3
5
5
2
2
2
The continuous optimization means that for each event (ex. a car is arriving) or at periodic times, the algorithm
recalculates the optimal output current of each EV charger and instructs the EV chargers to limit the output current to
this value. See Figure 22.
