Danfoss Vacon NXP Applications Manual page 67

Description of parameters
NOTE! Some cases when inductor size and losses are compensated, the zero load
voltage may need to decrease.
P2.2.6.4 Capacitor Size
AFE: This parameter defines the reactive current going to the LCL filter capacitor. It
compensates the LCL effect to the reactive current by adjusting the reactive current
reference internally. The inductor size is also added to compensation. If set correctly, the
power factor on the grid side will be 1.
Island and Micro Grid: Not used.
P2.2.6.5 Inductor Size
AFE:
This parameter defines voltage losses in percentage of the nominal voltage at 100%
active current. This value is internally added to the reactive current reference thus giving
power factor 1 on the grid side, if set correctly together with Capacitor Size. The
transformer and feeding cables can be compensated by increasing this value.
Island and Micro Grid:
This parameter defines the voltage increase in percentage of the nominal voltage at
100% reactive current.
•
Supply Voltage: 400 Vac
•
Inductor Size: 15.0 %
•
Inductor losses: 15.0 %
•
Reactive Current: 30.0 %
•
Active Current: 50.0 %
400 ∗ 30,0 % ∗ 15.0 %
Voltage drooping will decrease the final voltage if it is used.
P2.2.6.6 Inductor Losses
AFE: Not used.
Island and Micro Grid: This parameter defined voltage increase in percentage from
Inductor size at nominal voltage at 100% active current.
•
Supply Voltage: 400 Vac
•
Inductor Size: 15.0 %
•
Inductor losses: 15.,0 %
•
Reactive Current: 30.0%
•
Active Current: 50.0 %
400 ∗ 50,0 % ∗ 15,0 % ∗ 15,0 %
Voltage drooping will decrease the final voltage if it is used.
24-hour support: +358 (0)201 212 575 • Email: vacon@vacon.com
[%] (ID1460)
[%] (ID1461)
18
. Increase of voltage from reactive current.
[%] (ID1465)
4,5
. Increase of voltage from active current.
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