Woodward GCP-20 Series User Manual

Manual 37128A GCP-20 Series - Genset Control
Page 84/190 © Woodward
Parameter 60
Pow.fact.contr.
Deriv.time 0.00s
Option Qu only
Power factor controller: derivative-action time 0.00 to 6.00 s
The derivative-action time T
V
identifies the D part of the PID controller. By in-
creasing this parameter, the stability of the system is increased. The controller will
attempt to slow down the action of the actuator in an attempt to prevent excessive
overshoot or undershoot. Essentially this is the brake for the process. This portion
of the PID loop operates anywhere within the range of the process unlike reset.
Real Power Controller [GCP-21/22]
Parameter 61
Power controller
ON
P controller: activation ON/OFF
ON................In mains parallel operation the real power is automatically adjusted
to the pre-selected set point when the real power controller is config-
ured ON. The subsequent screens of this function are displayed.
OFF..............Real power control is not performed, and the subsequent screens of
this function are not displayed.
Setpoint Ramp %/s
Parameter 62
Power controller
ramp 000%/s
P controller: set point ramp %/s 0 to 100 %/s
Different set point values are supplied to the controller through this ramp in a per-
cent per second reference to the generator rated power. The slope of the ramp is
used to determine the rate at which the controller modifies the set point value. The
more rapidly the change in the set point is to be carried out, the greater this value
has to be.
Power Limitation
Parameter 63
Power limit
P max. 000%
P controller: maximum power limitation 10 to 120 %
If the maximum real generator load is to be limited, a percentage based on the rated
generator power must entered here. The controller adjusts the generator in such a
manner that this value is not exceeded. This parameter limits the set point of the
real power controller when the generator is in a mains parallel operation.
Parameter 64
Power limit
P min. 00%
P controller: minimum power limitation 0 to 50 %
If the minimum real generator load is to be limited, a percentage based on the rated
generator power must entered here, in accordance with the specified setting limits.
The controller adjusts the generator so that the real power generated does not fall
below this limit. This parameter is ignored in the case of fixed-set point control or
isolated operation.

Woodward GCP-20 Series Specifications

General

Brand	Woodward
Model	GCP-20 Series
Category	Control Unit
Language	English