Delta RPI Series, Operation And Installation Manual

Page: 33 / 154

5.2.7.4.3. Active Power Control – P(V)
When grid voltage rises up to a lock-in voltage(V lock-in) and inverter’s
present output power is greater than lock-in power(P lock-in), inverter
will reduce the output power and keep it at a certain value(P lock-out)
until grid voltage drop back to lock-out voltage(V lock-out) and passing
a certain time(T revcovery).
5.2.7.4.4. Reacitve Power Control – Constant cosφ
Inverter can feed in a fixed reactive power to grid. Users can set the
power factor(cosphi) in Constant cosphi page.
Active/Reactive Power
21. Jun 2010 13:50
Power vs. Frequency
Power Limit
P(V)
ENT
EXIT
Active Power Control
21. Jun 2010 13:50
Lock-in Power
Recovery Time 300
20
[
[ ]
]
Lock-out Power
5 [ ]
%
%
Lock-in Voltage 253.0 [ ] V
Lock-out Voltage 248.4 [ ] V
Mode OFF [ ]
s
Figure 5-17 P(V) setting page.
Figure 5-18 Constant cosφ setting page.
Active/Reactive Power
21. Jun 2010 13:50
Constant cos φ
cos φ (P)
Constant Reactive Power
Q(V)
ENT
EXIT
Reactive Power Control
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cos φ 1.00 [ ]
Mode OFF [ ]
33
Turn on/off PV inverter