Kaco blueplanet 92.0 TL3 US Manual page 81

Manual
The transient response of the control methods is determined by a PT-1 filter. In this case, the settling time corresponds to
5 Tau, or in other words, achieving approx. 99% of the final value for a PT-1 filter. Subject to the control method selected,
there are also other parameters that determine dynamic behavior.
10.1.3 Reactive power functions
The following functions for controlling the reactive power are implemented in the devices listed above:
– cos ϕ constant
– Q constant
– cos ϕ (P)
– Q(P) 10 nodes
– Q(U) 10 samples
NOTE: In the basic setting, reactive power is prioritized in each method, which can be deactivated accord-
ingly. The priority can be selected when using the Q constant and the Q(U) mode. The maximum possible
active power that can be fed in is reduced in line with the P-Q operating range when the maximum effec-
tive power is reached.
Model Parameter
126. ModEna
Q constant
In Q-constant mode, the specified reactive power value is permanently set by the inverter. If the constant is changed, the
new value is adopted by way of a filter in a muted manner. The settling time and gradient limitation can be configured on
the web user interface. The settling time is 1s with the transient response of a first-order filter (PT-1) with a time constant
of Tau=200ms. The specified reactive power can be configured on the display or by way of communication via the KACO
RS485 protocol and MODBUS/SunSpec.
If the applicable grid code stipulates that the reactive power should react to the target value slower than the configured
Tau=200 ms by way of a defined gradient or settling time, this gradient or settling time must be implemented in the sys-
tem control.
Model Parameter
123. VArWMaxPct
Q constant
123. VArPct_RvrtTms
Timeout
123. VArPct_RmpTms
Increasing output gradi-
ent &
Decreasing output gradi-
ent
KACO blueplanet 92.0 TL3 US KACO blueplanet 110 TL3 US KACO blueplanet 125 TL3 US
Scaling factor R/RW Range
ModEna
RW
Scaling factor R/RW Range
VArPCt_SF RW
RW
R
Slim / min]
Specifications | 10
Description
0 / 1 The reactive power method that is se-
lected in the device can only be indi-
rectly activated/deactivated via Sun-
spec.
Description
0-100 [% ] Setpoint of the reactive power can be
Pmax
adjusted depending on the set maxi-
mum active power.
0 – 1000 [s] Sets the time after which the inverter, if
it does not receive a new reactive
power specification, falls back to the
previously valid reactive power proce-
dure.
If the timeout Timeout is set to 0 sec-
onds, the transmitted reactive power
specification is permanently retained,
even in the event of a communication
failure.
Note: When the unit is restarted, the
Timeout is reset to the default value.
1 – 65524 [% Determines the dynamic behavior in the
event of a change in the reactive power
value. The reactive power is changed
with the specified gradient.
Note: The gradient is overlaid with the
settling time.
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