11 Appendix IV: Power Response User Manual
96
Max. leading
Q/Sn
Max. lagging
Q/Sn
Grid voltage, V
Q/Sn
P2
P3
P4
0%
P1
V1 Ref. V2 Ref.
V3 Ref. V4 Ref.
Hysteresis
Hysteresis
Fig. 11-2 Reactive Power Control Curve in Q(U) Curve
11.1.4 Over-frequency Response
The Volt-watt mode and Volt-watt (Chrg) mode are not
supported!
Press to select Frq-watt and Press ENT to confirm.
Active Power
Volt-watt
Frq-watt
Volt-watt (Chrg)
Tab. 11-4 Definition of Over-frequency Response Parameters
The Start frequency value for over-frequency response.
The Stop frequency value for over-frequency response.
The actual AC output power at the instance when the
frequency reaches the Start frequency.
The active power reduction rate relative to the actual power
Pm per Hz.
When there is an increase in grid frequency which
exceeds the Start value (default of 50.20 Hz), the
inverter will reduce the power output linearly with a
gradient of 40% Pm/Hz until the End value (default of
51.50 Hz) is reached.
When the frequency exceeds the End value, the
OverFrq Start
OverFrq End
50.20 Hz
51.50 Hz