The setting value is either：
• fixed power factor cosφ (VDE-AR-N 4105 ,CEI 0-21)
• displacement factor/active power characteristic curve cosφ(p)
(VDE-AR-N 4105 ,CEI 0-21)
• fixed reactive power in Var.(CEI 0-21)
• reactive power/voltage characteristic Q(U). (CEI 0-21)
6.2.1
Fixed Power Factor cosφ (VDE-AR-N 4105,CEI 0-21)
Users can set power factor from Cap 0.8 to Ind 0.8 (inverter would stop reactive power
control if output power is below 20% rated power).
6.2.2 cosφ(P) (VDE-AR-N 4105,CEI 0-21)
Once user enables this method, inverter will deliver reactive power according to output
active power at that moment. Figure 6-2 is an example.
6.2.3 Fixed Reactive Power InVAR(CEI 0-21)
Once user enables this method, inverter will deliver reactive power (i.e. Q) consistent
with that of the fixed reactive power setting.
The setting range is from Cap 48.4% to Ind 48.4%.
6.2.4
Reactive Power/ Voltage Characteristic Q(U)(CEI 0-21)
Once user enables this method, user can set Q vs. Grid voltage operation curve as in
Figure 6-3 below.
Cap 0.9
Ind 0.9
P/ Pn
1
cos
φ
0.5
P1
P2
Upper limit
lower limit
0.2
No cos φ ( P )
is allowed
Figure 6-2: cosφ(P) characteristic
26
Active/Reactive Power Control and LVRT (Optional)
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