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KACO blueplanet 3.0 NX1 M2 KACO blueplanet 3.7 NX1 M2 KACO blueplanet 4.0 NX1 M2
KACO blueplanet 5.0 NX1 M2
3.2.9
Inverter active power setting: overfrequency curve
The inverter may be capable of activating active power response to overfrequency at a programmable frequency threshold
with a programmable droop. There are four available modes.
Fix gradient and non-
hysteresis: ∆P is the active power as a percentage of P
n
, the inverter provide non-hysteresis in the
control of active power response to over-frequency.
Fix
gradient and hysteresis: ∆P is the active power as a percentage of P
n
, the inverter provide hysteresis in the control of
active power response to over-frequency.
Variable gradient and non-
hysteresis: ∆P is the active power a
s a percentage of PM, the inverter provide non-hysteresis in
the control of active power response to over-frequency.
Variable gradient and hysteresis: ∆P is the active power as a percentage of PM, the inverter provide hysteresis in the
control of active power response to over-frequency.
The below figure descripts the difference between hysteresis and non-hysteresis control
Here,
f
n
: Rated frequency
f
reset
: Reset frequency
f
start
: Starting frequency
f
stop
: Stopping frequency
∆
P : Active power in percentage during reducing
Intentional delay time for P(f) is only active for the activation of the function, once the frequency rises above f
start
and the
intentional delay time plus inherent dead time is less than 2s. Once the function is operating, the established control loop is
not intentionally delayed.
Min. delay time for active power release is the delay time that the active power can increase after the frequency below
f
reset
.