Country-
spec. Set-
tings
Men
u
level
Display/
Setting
Action in this menu/meaning
Deactivation time
0 – 60000000 [ms]
Only evaluated with activated hysteresis mode: Monitoring time during
which the voltage must remain below the lowest configured node be-
fore the function is deactivated.
Settling time
100 – 1,200,000 [ms]
Determines the dynamic behaviour in the event of a change in the act-
ive power set value. With a voltage change, the active power is changed
according to a PT-1 characteristic curve with a settling time of 5 Tau.
Note: The settling time is overlaid with the increasing and decreasing
gradient.
Number of nodes
2 - 5
Power
0.0 -100.0 [%]
Voltage
0.0 -126.0 [%]
Up to five nodes for voltage [V] and power [% Pref] are configurable.
The power value of the first and last value pair is also used as the max-
imum or minimum active power value that is valid across the limits of
the characteristic curve.
4
1
2
3
4
Active curve
1 - 5
F
Select active curve.
NOTE: Up to 5 characteristic curves can be configured independently
and one of them can be activated for regulation each time.
10.2.3
P(f)
Adjusting the active power P(f) in the event of overfrequency
Feed-in inverters must assist with frequency stability in the grid. If the grid frequency leaves the normal tolerance range
(e.g. ±200 mHz), then the grid will be in a critical state. In the event of overfrequency, there is a generation surplus, in the
event of underfrequency, there is a generation deficit.
PV systems must adapt their feed-in power relative to the frequency deviation. In the event of overfrequency, the power
adjustment is determined by a maximum feed-in limit. The actual power of the inverter may vary freely below this limit
due to a possible fluctuation in the available power or the target value, but at no time increases above the absolute
power limit.
Fig. 49:
Equation 1
Fig. 50:
Equation 2
Page 61] definiert die maximale Grenze mit ΔP entsprechend Gleichung 2 [See figure 50]
M
die Momentanleistung zum Zeitpunkt der Aktivierung und P
ref
die Referenzleistung. In the case of PV in-
verters from KACO, P
ref
is defined as P
M
, the current power at the time of activation. f is the current frequency and f
1
is the
specified activation threshold.
Fig. 51:
Equation 3
Fig. 52:
Equation 4
Powador 30.0-72.0 TL3
Page 61
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