Avr mode, Fcr mode, Fvr mode β Basler Electric DECS-250N User Manual
Page 50: Var mode, Power factor mode, Summing type
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Auxiliary Control
DECS-250N
AVR Mode
In AVR mode, the auxiliary control signal is multiplied by the AVR gain setting
C
. The result defines the
setpoint change as a percentage of the rated generator voltage.
πΊππππππ‘ππ ππππ‘πππ π΄πππ’π π‘ = π
ππ’π₯
Γ 0.01 Γ π΄ππ πΊπππ Γ π ππ‘ππ ππππ‘πππ
For example, applying +10 Vdc with an AVR gain of 1.0 raises the AVR setpoint 10% of rated generator
voltage. This example also applies to the following modes.
FCR Mode
In FCR mode, the auxiliary control signal is multiplied by the FCR gain setting
D
. The resulting value
relates to a percentage of the rated field current.
πΉπΆπ π΄πππ’π π‘ = π
ππ’π₯
Γ 0.01 Γ πΉπΆπ πΊπππ Γ ππ πΏπππ π ππ‘ππ πΉππππ πΆπ’πππππ‘
FVR Mode
In FVR mode, the auxiliary control signal is multiplied by the FVR gain setting
E
. The resulting value relates
to a percentage of the rated field voltage.
πΉππ π΄πππ’π π‘ = π
ππ’π₯
Γ 0.01 Γ πΉππ πΊπππ Γ ππ πΏπππ π ππ‘ππ πΉππππ ππππ‘πππ
Var Mode
In var mode, the auxiliary control signal is multiplied by the Var gain setting
F
. The resulting value relates to
a percentage of the rated apparent power (kVA).
π£ππ π΄πππ’π π‘ = π
ππ’π₯
Γ 0.01 Γ π£ππ πΊπππ Γ 1.7321 Γ π ππ‘ππ ππππ‘πππ Γ π ππ‘ππ πΆπ’πππππ‘ (ππ’π‘ππππππ π πππππ‘ππ)
Power Factor Mode
In Power Factor mode, the auxiliary control signal is multiplied by the PF gain setting
G
to define the PF
setpoint change.
ππΉ π΄πππ’π π‘ = π
ππ’π₯
Γ 0.01 Γ ππΉ πΊπππ (ππ’π‘ππππππ π πππππ‘ππ)
Summing Type
H
The auxiliary control signal can be configured to control the inner or outer regulation control loop.
Selecting the inner loop limits auxiliary control to AVR, FCR, and FVR modes. Selecting the outer loop
limits auxiliary control to PF and Var modes.
Figure 22. Auxiliary Input Settings