226 Section 12 Paralleling System Information TP-6953 7/19
12.6.5 Power Control
Real Power Disconnect Level
The Real Power Disconnect Level is the real power
threshold below which the generator circuit breaker will
be signaled to trip when the generator is signaled to
unload (the load enable signal is removed or the
parameter is set to off).
Range: 0.0% – 25.0%
Default: 5.0%
Real Power Ramp Rate
The Real Power Ramp Rate determines the rate that the
generator will attempt to take and remove load. The
ramp rate is used in soft-loading (when a generator
closes to a live bus) and soft-unloading (when a
generator is signaled to stop by Generator Management
or the load enable signal is removed.
Range: 0.1%/sec – 25.0%/sec
Default: 10.0%/sec
Real Power Baseload Setpoint
The Real Power Baseload Setpoint is the final target for
the load ramp when entering baseload mode and is the
target for the real power controller as long as baseload is
active. The setpoint could be adjusted remotely via
communications, but the system is intended to operate
in system control mode when paralleling with the utility
using external switchgear controls.
Range: 0.0% – 100.0%
Default: 50.0%
Real Power Baseload Proportional Gain
The Real Power Baseload Proportional Gain
determines the contribution of the real power control
proportional term to the speed bias. The proportional
term is directly related to the difference between the
baseload setpoint and the percent electrical loading of
this individual generator. The proportional term
increases the speed bias when the baseload setpoint is
greater than the generator load.
Range: 0.01 – 100.00
Default: 1.00
Real Power Baseload Integral Gain
The Real Power Baseload Integral Gain determines the
contribution of the real power control integral term to the
speed bias. The integral term ramps at a rate directly
related to the difference between the baseload setpoint
and the percent electrical loading of this individual
generator. The integral term ramps the speed bias up
when the baseload setpoint is greater than the
generator load.
Range: 0.01 – 100.00
Default: 1.00
Real Power Baseload Derivative Gain
The Real Power Baseload Derivative Gain determines
the contribution of the real power control derivative term
to the speed bias. The derivative term is directly related
to the rate of change in the difference between the
baseload setpoint and the percent electrical loading of
this individual generator. The derivative term increases
the speed bias when the difference between the
baseload setpoint and the generator load increases.
Range: 0.01 – 100.00
Default: 1.00
System Real Load Control Proportional Gain
The System Real Load Control Proportional Gain
determines the contribution of the real power control
proportional term to the speed bias. The proportional
term is directly related to the difference between the
system control target set by the speed bias and the
percent electrical loading of this individual generator. The
proportional term increases the speed bias when the
system control target is greater than the generator load.
Range: 0.01 – 100.00
Default: 1.00
System Real Load Control Integral Gain
The System Real Load Control Integral Gain
determines the contribution of the real power control
integral term to the speed bias. The integral term ramps
at a rate directly related to the difference between the
system control target set by the speed bias and the
percent electrical loading of this individual generator.
The integral term ramps the speed bias up when the
system control target is greater t han the generator load.
Range: 0.01 – 100.00
Default: 1.00
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