Setting Energy Management
The following screen is displayed.
-
Minimum current setpoint for an electrical vehicle to charge.
-
Load Shedding Priority: Energy/Duration
-
Consumption Optimisation Configuration
-
Suspended by System Strategy
-
Electrical grid: 3 x 400V with neutral/3 x 230V no neutral
-
Local production management
| Setting | Value | Description |
|---|---|---|
|
Minimum current setpoint for an electrical vehicle to charge |
IEC 61851 |
6 A in both single and 3-phases connection |
|
EV/ZE ready |
8 A in single-phase, 14 A in 3-phase connection |
|
|
Load Shedding Priority |
Energy (default value) |
Proportional to the consumed energy (kWh). This option favors transaction that delivers the lowest amount of energy. |
|
Duration |
Proportional to the charging time. This option favors transaction that has been charging for the least time. |
|
|
Consumption Optimisation Configuration |
Setpoint reduction trigger value |
Difference between decreasing EV consumption and setpoint before triggering the optimization. Default value: 5 seconds Range: 0.1 s – 10 s There is a warning before changing this parameter. |
|
Reduction efficiency value |
Gap between the consumption and the new setpoint calculated by the optimization. Default value: 3 seconds Range: 0.1 s – 10 s There is a warning before changing this parameter. |
|
|
Minimal gap with EV consumption |
Gap between the increasing EV consumption and the setpoint triggering more power allocation to the charging station. Default value: 1 second Range: 0.1 s – 10 s There is a warning before changing this parameter. |
|
|
Suspended by System Strategy |
Allow |
When Allow Suspended by System Strategy option is selected, if a transaction stops consuming energy (current lower than 1 A), EcoStruxure EV Charging Expert stops the transaction and restarts the transaction after a wake-up EV interval defined (in seconds). |
|
Disabled |
– |
|
|
Reused setpoint |
– |
|
|
Local production management |
Grid only (default value): power coming only from grid |
– |
|
Local production + Grid: local solar production is added to power coming from utility for higher consumption capacity. |
If chosen, it is necessary to add power meter dedicated to solar production. See Configuring Power Meters and how to associate the local production to a zone. The associated zone can include charging stations. In case of several photovoltaic production zones, one power meter per zone is required. |
|
|
Load production only: enables green charging by considering solar energy only as available power for your EV charging installation |
Example: if we consider a zone with 100 A and a 70% reduction, that integrates a 20 A solar production, 90 A is available for the charging stations.
For detailed information, refer to EcoStruxure EV Charging Expert User Guides.
If we consider a dynamic zone with 70 A, that integrates solar production and three charging stations:
-
The main power meter computes the consumption of the charging stations and the building.
-
The solar power meter measures the local energy production.
On the dashboard, three transactions are in progress.
The maximum current of the zone is 70 A.
It is increased to 100 A with the addition of 30 A of local energy production.
If the building consumes 19 A, the energy allocated to each transaction is 27 A.
Energy Management Setting Procedure
-
Set the following parameters for EV infrastructure energy management:
-
Minimum Current Setpoint for an Electrical Vehicle to Charge: IEC 61851
-
Load Shedding Priority: Energy
-
Consumption Optimisation Configuration: ON
-
Allow Suspended by System: ON
-
-
Select Save and Restart.
| Architecture | Next step |
|---|---|
|
Refer to Description of System Architectures. |
|