Basler Electric DECS-400 - Manual (Page 93)

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VAR – Ki Integral Gain. This setting adjusts the integral gain, which determines the characteristic of the
DECS-400 dynamic response to a changed var setting. A setting of 0 to 1,000 may be entered in 0.01
increments.
VAR – Kg-Loop Gain. This setting adjusts the coarse loop-gain level of the PID algorithm for var control.
A setting of 0 to 1,000.0 may be entered in 0.1 increments.
PF – Ki-Integral Gain. This setting adjusts the integral gain, which determines the characteristic of the
DECS-400 dynamic response to a changed power factor setting. A setting of 0 to 1,000.0 may be entered
in 0.1 increments.
PF – Kg-Loop Gain. This setting adjusts the coarse loop-gain level of the PID algorithm for power factor
control. A setting of 0 to 1,000.0 may be entered in 0.1 increments.
OEL – Ki-Integral Gain. This setting adjusts the rate at which the DECS-400 responds during an
overexcitation condition. A setting of 0 to 1,000.0 may be entered in 0.1 increments.
OEL – Kg-Loop Gain. This setting adjusts the coarse loop-gain level of the PID algorithm for the
overexcitation limiter function. A setting of 0 to 1,000.0 may be entered in 0.1 increments.
UEL – Ki-Integral Gain. This setting adjusts the rate at which the DECS-400 responds during an
underexcitation condition. A setting of 0 to 1,000.0 may be entered in 0.1 increments.
UEL – Kg-Loop Gain. This setting adjusts the coarse loop-gain level of the PID algorithm for the
underexcitation limiter function. A setting of 0 to 1,000.0 may be entered in 0.1 increments.
SCL – Ki-Integral Gain. This setting adjusts the rate at which the DECS-400 limits stator current. A setting
of 0 to 1,000.0 may be entered in 0.1 increments.
SCL – Kg-Loop Gain. This setting adjusts the coarse loop-gain level of the PID algorithm for the stator
current limiter function. A setting of 0 to 1,000.0 may be entered in 0.1 increments.
Voltage Matching – Kg-Loop Gain. This setting adjusts the coarse loop-gain level of the PID algorithm for
matching the generator voltage to the bus voltage. A setting of 0 to 1,000.0 may be entered in 0.1
increments.
Inner Loop Field Regulator – Ki-Inner Loop. This setting adjusts the rate at which the DECS-400 responds
to changes in the main field voltage. A setting of 0 to 1,000.0 may be entered in increments of 0.1.
Inner Loop Field Regulator – Kg Inner Loop. This setting adjusts the coarse loop-gain level of the PI
algorithm for the inner loop field regulator. A setting of 0 to 1,000.0 may be entered in increments of 0.1.
VARL – Ki Integral Gain. This setting adjusts the rate at which the DECS-400 limits reactive power. A
setting of 0 to 1,000.0 may be entered in 0.1 increments.
VARL – Kg Loop Gain. This setting adjusts the coarse loop gain level of the PID algorithm for the reactive
power limiter function. A setting of 0 to 1,000.0 may be entered in 0.1 increments.
Limiters
The Limiters screen consists of seven tabs labeled Configuration, Summing Point OEL, UEL, Takeover
OEL, SCL, VARL, and Scaling. Click the Limiters button on the tool bar to view the Limiters screen.
Configuration
Configuration tab settings are shown in Figure 47 and described in the following paragraphs.
Limiter Mode(s). Three types of limiters may be enabled: OEL (overexcitation limiter), UEL (under-
excitation limiter), and SCL (stator current limiter).
OEL Mode – OEL. This setting selects either the summing point or takeover style of overexcitation
limiting.
OEL Voltage Dependency – dv/dt Enable. Enabling this supervisory function affects the way the on-line
overexcitation limiter operates. If this feature is enabled and the rate of reduction of terminal voltage
exceeds the dv/dt Level setting, the High-, Medium-, and Low-Level On-Line OEL settings (Limiters
screen, Summing Point OEL tab) are enabled. Otherwise, only the Medium- and Low-Levels are enabled.
DECS-400 BESTCOMS™ Software