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Setting EMS Control Parameters
This section applies to V300R001C00.
Procedure
- To set the battery working mode, choose .Figure 6-55 Working mode
No control
The SmartLogger directly delivers the external scheduling power limit. No other power scheduling control is performed. The power is automatically controlled by the inverter.
Maximum self-consumption
- This mode applies to areas where the electricity price is high, or areas where the FIT subsidy is low or unavailable.
- Excess PV energy is stored in batteries. When PV power is insufficient or no PV power is generated at night, batteries discharge to supply power to the loads, improving the self-consumption rate of the PV system and the self-sufficiency rate of residential energy, and reducing electricity costs.
- The SmartLogger performs energy storage scheduling based on the external scheduling power limit and the preceding policies.
You are advised to retain the default values of the following parameters. If needed, choose and set the parameters as required.
Parameter Name |
Description |
|---|---|
|
|
|
|
Control the maximum target grid power when the grid-connection point has zero power. |
|
Allowed fluctuation of the target grid power for the grid-connection point |
Fully fed to grid
- The SmartLogger directly delivers the external scheduling power limit.
- This mode maximizes the feed-in power. When the generated PV energy in the daytime is greater than the maximum output capability of the inverter, the batteries are charged to store energy. When the PV energy is less than the maximum output capability of the inverter, batteries discharge to maximize the energy fed to the grid.
TOU
- This mode applies to scenarios where the price difference between peak and off-peak hours is large.
- You can manually set the charge and discharge time segments to lower the electricity cost. You need to enable Fed to grid in Battery control page. When the electricity price is low at night, the power grid charges the batteries. When the electricity price is high, the batteries discharge to supply power to the loads.
- Click Add to set the charge and discharge time segments. A maximum of 14 time segments can be set. During the charging period, the power grid charges the batteries, and during the discharging period, the batteries discharge to supply power to the loads. In other time segments that are not set, the batteries do not discharge, and the PV modules and grid supply power to the loads. (In grid-tied/off-grid mode, if the grid fails, the batteries can discharge at any time.)
- In some countries, the grid is not allowed to charge batteries. Therefore, this mode cannot be used.
- The SmartLogger performs energy storage scheduling based on the external scheduling power limit and the preceding policies.
Figure 6-56 TOU
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Parameter Name |
Description |
|---|---|
|
|
Sets the maximum power of the grid during battery charging. |
|
|
|
You are advised to retain the default values of the following parameters. If needed, choose and set the parameters as required.
Parameter Name |
Description |
|---|---|
|
|
|
|
Control the maximum target grid power when the grid-connection point has zero power. |
|
Allowed fluctuation of the target grid power for the grid-connection point |