Basler DECS-150 - Page 107

9492600990 14-5
DECS-150 Stability Tuning
Figure 14-4. FCR Screen
Other Modes and Functions
BESTCOMSPlus Navigation Path: Settings Explorer, Operating Settings, Gain, var, PF, OEL, UEL,
SCL, VAR Limiter
Settings for stability tuning of the Var and Power Factor modes are provided in the DECS-150 along with
settings for stability tuning of limiters, the voltage matching function, and main field voltage response.
Figure 14-5 illustrates these settings as they appear in BESTCOMSPlus.
Var Mode
The integral gain (K
i
) adjusts the Var mode integral gain which determines the characteristic of the DECS-
150 dynamic response to a changed var setpoint.
The loop gain (K
g
) adjusts the coarse loop-gain level of the PI algorithm for var control.
Power Factor Mode
The integral gain (K
i
) adjusts the Power Factor mode integral gain which determines the characteristic of
the DECS-150 dynamic response to a changed power factor setpoint.
The loop gain (K
g
) adjusts the coarse loop-gain level of the PI algorithm for power factor control.
Overexcitation Limiter (OEL)
The integral gain (K
i
) adjusts the rate at which the DECS-150 responds during an overexcitation
condition.
The integral loop gain (K
g
) adjusts the coarse loop-gain level of the PI algorithm for the overexcitation
limiter function.
Underexcitation Limiter (UEL)
The integral gain (K
i
) adjusts the rate at which the DECS-150 responds during an underexcitation
condition.
The loop gain (K
g
) adjusts the coarse loop-gain level of the PI algorithm for the underexcitation limiter
function.
Stator Current Limiter (SCL)
The integral gain (K
i
) adjusts the rate at which the DECS-150 limits stator current.
The loop gain (K
g
) adjusts the coarse loop-gain level of the PI algorithm for the stator current limiter
function.