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Rockwell Automation 1407-CGCM Combination Generator Control Module User Manual

Page 89

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Rockwell Automation Publication 1407-UM001G-EN-P - April 2013

89

CGCM Unit Configuration Chapter 4

Power Factor Control

The Power Factor Control gains determine the response of the power factor
control loop for the voltage regulation function when in PF mode. These settings
can be adjusted during system startup.

Please refer to

Chapter 5

for more information on tuning the power factor

control gains.

Integral Gain Ki - Sets the integral gain. Generally if the time to reach

steady state is too long, increase Ki. The tag PF_Ki in the Unscheduled
Write table stores this parameter.

Overall Gain Kg - Sets the overall gain, which determines the characteristic

of the dynamic response to changes in power factor. If the transient
response has too much overshoot, decrease Kg. If the transient response is
too slow, with little or no overshoot, then increase Kg. The tag PF_Kg in
the Unscheduled Write table stores this parameter.

VAR Control

The VAR Control gains determine the response of the VAR control loop for the
voltage regulation function when in VAR mode. These settings can be adjusted
during system startup.

Please refer to

Chapter 5

for more information on tuning the VAR control gains.

Integral Gain Ki - Sets the integral gain. Generally if the time to reach

steady state is too long, increase Ki. The tag VAR_Ki in the Unscheduled
Write table stores this parameter.

Overall Gain Kg - Sets the overall gain, which determines the characteristic

of the dynamic response to changes in VARs. If the transient response has
too much overshoot, decrease Kg. If the transient response is too slow, with
little or no overshoot, then increase Kg. The tag VAR_Kg in the
Unscheduled Write table stores this parameter.

Over-excitation Limiting

The OEL gains determine the response of the OEL control loop for the voltage
regulation function when OEL is active. These settings can be adjusted during
system startup.

Please refer to

Chapter 5

for more information on tuning the OEL control gains.

Integral Gain Ki - Sets the integral gain. If the time to reach steady state is

too long, increase Ki. The tag OEL_Ki in the Unscheduled Write table
stores this parameter.

Overall Gain Kg - Sets the overall gain, which determines the characteristic

of the dynamic response when OEL is active. If the transient response has
too much overshoot, decrease Kg. If the transient response is too slow, with
little or no overshoot, then increase Kg. The tag OEL_Kg in the
Unscheduled Write table stores this parameter.