Setting EMS Control Parameters
To set the battery working mode, choose .
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.
Parameter Name |
Description |
|---|---|
Tracking load |
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Battery reverse current protection |
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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.
Parameter Name |
Description |
|---|---|
Tracking load |
Enable: Adjusts the inverter output to ensure that the output is approximately equal to the load. Disable: Maximizes the inverter output power. However, the output power is still affected by parameters such as external scheduling. |
Battery reverse current protection |
|
Preferred use of surplus PV power |
Charge: When the generated PV energy is greater than the loads, excess PV energy is used to charge the batteries. After the maximum charge power is reached or the batteries are fully charged, the excess PV energy is fed to the grid. Fed to grid: When the generated PV energy is greater than the loads, the excess PV energy is preferentially fed to the grid. When the maximum output power of the inverter is reached, the excess energy is used to charge the batteries. This setting is applicable to the scenario where the FIT is higher than the electricity price. Batteries are used only for power backup. |
Maximum charge power of grid |
Sets the maximum power of the grid during battery charging. |
Start time |
Sets the Charge/Discharge time. A maximum of 14 time segments can be set. You can set a cycle by week by clicking the buttons corresponding to Mon. through Sun. in the Repeat box. The buttons are blue by default, indicating selected. After you click it, the color turns gray. |
End time |
|
Charge/Discharge |
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Repeat |
