Other Grid Support Functions Effective On Active Power - Kaco blueplanet 87.0 TL3 M1 WM OD IIF0 Manual

10 | Specifications
Country- Men Display/
spec. Set- u Setting
tings level
Minimum operating
voltage
45 – 125.0 [% Unom]
&
Maximum operating
voltage
45 – 125.0 [% Unom]
Reactive current limita-
tion
0 – 100 % [ % Imax]
Minimum support time
1000 – 15000 ms
10.4

Other grid support functions effective on active power

10.4.1 Permanent power gradient limitation
The maximum active and apparent power to be installed for a generation plant is agreed between the grid op-
erator and plant operator. The device capacity of a plant can be set to the exact agreed value using the S
P settings. To ensure that the load on the devices in the plant is uniform, we recommend distributing the per-
lim
formance reduction evenly across all devices.
Some grid connection rules insist that the agreed reactive power be supplied from every operating point of the
plant without a reduction in the actual active power. Considering the fact that all KACO TL3 inverters have a
semi-circular P-Q operating range, a reduction in the active power is, however, required during operation at
maximum active power because an apparent power reserve is not available. By adjusting P
tive power can be restricted in order to establish an apparent power reserve and ensure that the agreed reac-
tive power can be delivered from any active power operating point. The graphic [See figure 97 [} Page 86]
shows the appropriate P-Q operating range with a required example active power of 48% of the maximum ap-
parent power of the plant or 43% of the maximum active power of the plant.
Fig. 97: P-Q operating range with limited active power (Qmax=Smax≠Pmax) for PV inverters
The power reduction parameters can be adjusted in SunSpec model DID123. During this process, you should
also check whether internal and/or external power reduction is active.
Internal power limitation
Status = active
Maximum apparent power S
100000 VA
Maximum active power P
80% (approx. 80000 W)
Tab. 9: Sample parameters for power limitation
Page 86
Action in this menu/meaning
Dynamic grid support via fast feeding of residual current is activated on
voltage events with at least one phase/phase or phase/neutral conduc-
tor voltage outside the configured normal operating voltage range. Dy-
namic grid support via fast feeding ore residual current is deactivated
when the voltage returns to the normal operating voltage range.
The reactive power component of the fast feeding of residual current is
limited to permit a defined proportion of active power components.
If due to a voltage jump in accordance with formula (1) and the config-
ured dead band is activated, the dynamic grid support is deactivated via
fast feeding of residual current after the minimum support time elapses.
Parameters for external power
limitation
Status = active
=
lim
= AC fallback active power Pfb = 75%
lim
P (approx. 60000 W)
lim
PT1 settling time = 1 s
Manual
, the maximum ac-
lim
Parameters for power limitation
Parameters in SunSpec model 123:
"WMaxLimPct" = 50% P (approx. 40000
lim
W)
"WMaxLimPct_RvrtTms" = 60 s
"WMacLimPct_RmpTms" = 2 s
"WMaxLim_Ena" = 1
KACO blueplanet 110 TL3 KACO blueplanet 125 TL3 US
and
lim