Figure 8: Example of the importance of the lower and upper limits for setpoints related to the inverter parameter
Set active power limit or Pmax
Configurable parameters for active power control
Parameter Explanation
Activated Switches the active power control on or off
When the active power control is switched on, the active
power setpoint is being implemented gradually in accordance
with your additional settings in the group Settings for active
power control.
When the active power control is switched off, the active
power setpoint is implemented immediately.
Time interval in the event of a
changed setpoint
Indicates the time interval at which the control command with
the new output value is to be sent to the inverters once the set-
point sent by the signal generator changes
The first output value is sent to the inverter immediately after the
setpoint is changed. If additional output values are required in
order to reach the setpoint, these will be sent at the specified
time interval. This enables, for example, an incremental in-
crease in the active power.
Max. change in case of power
increase
Indicates the maximum change in percentage points per time
interval that occurs once an active power limitation setpoint has
been canceled
Max. change in case of power
reduction
Indicates the maximum change in percentage points per time
interval that occurs once an active power limitation setpoint has
been received
4 User Interface of the Cluster Controller
SMA Solar Technology AG
User ManualClusterController-BA-en-1530
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