Manual 37259C
SPM-D11 - Synchronizing Unit
NOTE
Refer to the parameter settings for the voltage controller starting on page 47. The parameter settings
performed for the voltage controller may be applied to the power factor controller as well.
Three-Position Controller (SPM-D11/LSR and SPM-D11/LSXR, Setting 'THREE-STEP')
Pow.fact.control
Dead band 00.0%
only SPM-D11/LSR
and SPM-D11/LSXR
'THREE-STEP'
Power factor controller insensitivity
0.5 to 25.0 %
The control automatically calculates the amount of reactive load which corresponds
to the power factor
set point
. In mains/parallel operation, the reactive load is controlled
so that it does not deviate from the configured power factor set point by more than
the value configured in this dead band (%) setting while operating in a steady state.
The percentage value refers to the generator nominal power.
Pow.fact.control
Gain Kp=00.0
only SPM-D11/LSR
and SPM-D11/LSXR
'THREE-STEP'
Power factor controller gain
0.1 to 99.9
Analog Controller (SPM-D11/LSXR, Setting 'ANALOG')
Pow.fact.control
Gain Kp 000
SPM-D11/LSXR
'ANALOG'
Power factor controller gain
1 to 240
The proportional-action coefficient KP indicates the closed-loop control system
gain. By increasing the gain, the response is increased to permit larger corrections
to the variable to be controlled. The optimum setting depends on the behavior of
the system. If the gain is too low, the control action becomes slow. If the gain is
configured too high, the result is excessive overshoot/undershoot of the desired
value. Refer to "Analog Controller Outputs" on page 29.
Pow.fact.control
Reset Tn 00.0s
SPM-D11/LSXR
'ANALOG'
Power factor controller reset time
0.0 to 60.0 s
The reset time Tn represents the I-component of the PID controller. The reset time
corrects for any offset (between set point and process variable) over time until the
process variable and the set point are the same. This parameter defines how quickly
the reset attempts to correct for any offset. If Tn is configured as 0.00 s, the I-
component of the PID loop is disabled. Refer to "Analog Controller Outputs" on
page 29.
Pow.fact.control
Derivat.Tv 0.00s
SPM-D11/LSXR
'ANALOG'
Power factor controller – derivative action time
0.00 to 6.00 s
The derivative-action time TV represents the D-component of the PID controller.
The D-component of the controller output becomes effective with large variations
of the offset, e.g. in case of load-shedding. The lower the derivative-action time is
configured, the higher the controller reaction is. If TV is configured as 0.00 s, the
D-component of the PID loop is disabled. Refer to "Analog Controller Outputs" on
page 29.
© Woodward
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