Woodward DSLC-2 - Table 3-16: Parameter - Var; Pf Control

Manual 37443A DSLC-2 - Digital Synchronizer and Load Control
Page 76/226 © Woodward
3pos Controller Reactive Power
ID
Parameter
CL
Setting range
Default
Description
5660
Reactive
power
controller
deadband
1 0.001 to 0.300 0.010 This configures a deadband around the power factor reference
value. The generator power factor is controlled in such a manner,
when paralleled with the mains, so that the monitored power fac-
tor does not deviate from the configured power factor setpoint by
more than the value configured in this parameter without the con-
troller issuing a raise/lower signal to the voltage regulator. This
prevents unneeded wear on the raise/lower relay contacts.
5661
Time pulse
minimum
1
0.01 to 2.00 s
0.05 s
This is the time the relay output will stay closed when providing a
voltage raise or lower command to the voltage regulator. The
shortest possible pulse time should be configured to limit over-
shoot of the desired reactive power reference point.
5662
Gain factor
1
0.1 to 10.0
5.0
The Gain factor influences the operating time of the relays. In-
creasing the Gain factor will increase the response to drive the
voltage within the tolerance for the mode it is in (voltage matching
or voltage control). If the gain is configured too high, the result is
excessive overshoot/undershoot of the desired value.
5663
Expand
deadband
factor
1
1.0 to 9.9
1.0
If the measured generator power factor is within the deadband
range (parameter 5660) and the configured Delay expand dead-
band time (parameter 5664) expires, the deadband will be multip-
lied with the factor configured here.
5664
Delay
expand
deadband
1
1.0 to 9.9 s
2.0 s
The measured generator power factor must be within the dead-
band range for the time configured here in order to multiply the
deadband with the factor configured in parameter parameter
5663.
Table 3-16: Parameter – var / pf control