Woodward GCP-30 Series Configuration

Manual 37278B GCP-30 Series - Genset Control
© Woodward Page 43/174
Power Factor cos ϕ Controller
Parameter 80
Pow.fact.contr.
ON
cos ϕ controller: activation ON/OFF
ON ................ In a mains parallel operation automatic control of the power factor is
carried out. If there are excessively low currents (secondary current
less than 5 % I
rated
) the power factor cannot be accurately measured.
In order to prevent power swings, the controller automatically locks
the power factor at a set value. The subsequent screens of this func-
tion are displayed.
OFF .............. Power factor control is not performed, and the subsequent screens of
this function are not displayed.
Parameter 81
Pow.fact.contr.
setpoint 0.00
cos ϕ controller: set point i0.70 to 1.00 to c0.70
The desired power factor may be configured here so that the reactive power is re-
gulated in the system. The designations "i" and "c" stand for inductive/lagging (ge-
nerator overexcited) and capacitive/leading (generator underexcited) reactive pow-
er. This set point is active only in mains parallel operation.
NOTE
Please note the settings for the voltage controller in chapter "Voltage Controller" at page 39. The set-
tings there for the voltage controller also influence the cos ϕ controller.
Three-position controller (standard; Package Q, Option Q: setting 'THREESTEP')
Parameter 82
Pow.fact.contr.
dead band 00.0%
cos ϕ controller: dead band 0.5 to 25.0 %
The control automatically calculates the amount of reactive power which belongs to
the power factor ϕ
setpoint
. In a mains parallel operation, the reactive power is con-
trolled in such a manner in its regulated state that the actual value does not deviate
from the generator power factor cos ϕ set point value by more than the percentage
value of the sensitivity setting. In this case, the percentage value refers to the gene-
rator rated power (Parameter 32).
Parameter 83
Pow.fact.contr.
gain Kp 00.0
cos ϕ controller: gain 0.1 to 99.9
The gain factor K
p
influences the operating time of the relays. By increasing the
gain, the response is increased to permit larger corrections to the variable to be con-
trolled. The farther out of tolerance the process is the larger the response action is
to return the process to the tolerance band. If the gain is configured too high, the
result is excessive overshoot/undershoot of the desired value.

Woodward GCP-30 Series Specifications

General

Brand	Woodward
Model	GCP-30 Series
Category	Controller
Language	English