Kaco blueplanet 87.0 TL3 Manual page 80

Country- Men Display/
spec. Set- u Setting
tings level
Deactivation time
0 – 60000000 [ms]
Settling time
100 – 1200000 [ms]
Number of nodes
Power
0,0 – 100,0 [% P
Voltage
80 – 125 [% U
Active curve
1 2 3 4 4
1 - 5
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. 90: Equation 1
Fig. 91: Equation 2
Equation 1 [See figure 90] [} Page 80] defines the maximum limit with ΔP relevant to 2 [See figure 91] [} Page 80], P
the current power at the time of activation and P
defined as P , the current power at the time of activation. f is the current frequency and f
M
threshold.
Fig. 92: Equation 3
Fig. 93: Equation 4
In some standards, the power adjustment is specified by a drop (s) instead of a gradient (g), as shown in equation 3 [See
figure 92] [} Page 80]. The drop s can be transformed into a gradient g in accordance with equation 4 [See figure 93]
[} Page 80].
Page 80
Action in this menu/meaning
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.
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.
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.
ref
]
nom
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.
the reference power. In the case of PV inverters from KACO, P
ref
KACO blueplanet 87.0 TL3 KACO blueplanet 92.0 TL3 KACO blueplanet 110 TL3 KACO blueplanet 125 TL3
is the specified activation
1
KACO blueplanet 137 TL3 KACO blueplanet 150 TL3
M
is
ref