Kaco blueplanet 29.0TL3 S Manual De Instrucciones página 67

Manual
In some standards, the power adjustment is specified by a drop (s) instead of a gradient (g), as shown in equa-
tion 3 [Ver figura 54 [} Página 66]. The drop s can be transformed into a gradient g in accordance with equa-
tion 4 [Ver figura 55 [} Página 66].
The frequency f remains above the activation threshold f
expression (f – f) is negative and ΔP corresponds to a reduction in the feed-in power.
1
The measurement accuracy of the frequency is greater than 10 mHz.
The specific mode of operation of the function is specified by the grid operator or the pertinent standards or
the grid connection guidelines. The configurability of the function makes it possible to satisfy a wide variety of
standards and guidelines. Certain configuration options are not available in some country settings because the
pertinent standards or grid connection guidelines prohibit adjustments.
Adjusting the active power P(f) in the event of underfrequency
Some grid connection guidelines also require adjustment of the active power P(f) in the event of underfre-
quency. Due to the fact that PV systems are typically run at the maximum power point, there are no power re-
serves for increasing the power in the event of underfrequency.
However, in the event that the system power is reduced due to market regulation, it is possible to increase the
active power up to the power level available. Because the inverter is unable to distinguish between P constant
target values for obligatory bottleneck management by the grid operator and for market regulation, this needs
to be implemented in the site-specific infrastructure of system control.
100 % P
M
60 % P
M
50 , 5 51 , 0
50 , 2
Frequency [Hz]
Fig. 56: Example behaviour with hysteresis (mode 1)
10.2.4.1 Parameters for P(f)
Country- Me- Display/
spec. Set- nu Setting
tings level
P(f) Modo de servicio
Off | Mode 1 | Mo-
de 2
Frequency of the maxi-
mum deactivation th-
reshold
45 – 50.2 [Hz] /
47.50 [Hz] /
Frequency of the mini-
mum deactivation th-
reshold
50 – 50.2 [Hz] /
50.05 [Hz] /
Kaco blueplanet 29.0TL3
P P P = P = = P P P P
re ref ef f e M M M
f f = = 5 5 = = = 50 50, , 2 Hz
1 1 1
s s s 5 = 5 5 5% % % %
f = 50 , 1 Hz
stop p
51 , 5 52 , 0
Action in this menu/meaning
Activate or deactivate function.
Mode 1: With hysteresis activated.
Mode 2: Without hysteresis activated.
Deactivation range lower limit:
Only evaluated in mode 1.
The function is deactivated if the frequency returns to the deactivation
range and remains in this range for the duration of the deactivation ti-
0.01
me.
Deactivation range upper limit:
Only evaluated in mode 1.
The function is deactivated if the frequency returns to the deactivation
range and remains in this range for the duration of the deactivation ti-
0.01
me.
Specifications | 10
during an overfrequency incident. Consequently, the
1
Rate limited power increase after
deactivation of response
100 % P
M
60 % P
M
50 , 5 51 , 0
50 , 2
Frequency [Hz]
Fig. 57: P(f) example characteristic without hysteresis Mode
2
P P P = P =P P P P
ref ref f f M M M
f f = = =5 5 50, 50 , 2 Hz
1 1
s s s s 5 = 5 5 % % 5 % % % % % %
f = deactivated
stop
51 , 5 52 , 0
Página 67