Voltage-Dependent Power Reduction P(U) - Kaco blueplanet 29.0TL3 Serie Manual

Manual
Limitation of power gradients
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. 5: Sample parameters for power limitation
If the ramp time "WMacLimPct_RvrtTms" in the SunSpec model is specified as 0 s, then the internal
output gradient is used. Otherwise, the set value will be used.
Irrespective of the communication protocol used, the settling time "WMaxLim_Ena" is used in order to
transfer the new power value. Otherwise, the internally configured value will be used.
The additional ramp time "WMacLimPct_RmpTms" specifies the jump time from a power value to the
new power value.
The following formulae are used to calculate the gradient S
Power / kVA resp. kW
S =100
lim
P =80
lim
P =60
fb
WMaxLimPct =40
10
Fig. 49: Power gradient according to sample parameters and calculation
The following formulae are used to calculate the Q filter parameter and cos-phi gradient:
Fig. 50: Formula for calculating the Q filter parameter
Fig. 51: Formula for calculating the cos-phi gradient (internal power gradient)

10.2.2 Voltage-dependent power reduction P(U)

If it is not possible to compensate adequately for increase in voltage in the upstream distribution net-
work by intake on reactive power, it may be necessary to curtail the active power. In this case, P(U)
control is available for making optimum use of the capacity of the upstream grid.
Kaco blueplanet 29.0TL3
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
Gradient = -600 % S /min
lim
Time / s
20 30 40 50 60 70
Specifications | 10
Parameters for power limitation
Parameters in SunSpec model 123:
"WMaxLimPct" = 50% P
W)
"WMaxLimPct_RvrtTms" = 60 s
"WMacLimPct_RmpTms" = 2 s
"WMaxLim_Ena" = 1
:
lim/min
(approx. 40000
lim
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