ABB PRO-33.0-TL - Limitation Based on Grid Frequency

24 Program features
 Limitation based on grid frequency
Power limitation based on grid frequency can be set to operate in different ways
depending on the selected limitation type. This section describes some of the most
common limitation types. The P(f) limitation type is selected in parameter 130.62 P(f) limit
type.
P(f) limitation curve based on Germany MV grid code
This is an example of an incremental P(f) limitation.
Frequency is defined with parameter 130.63 P(f) corner frequency. When frequency is
crossed, the power value is saved and the power limit is calculated in relation to that
power. The limit may decrease only until the frequency drops below the value defined in
parameter 130.65 P(f) release frequency. Then the power limit is ramped up with the
parameter 130.67 P(f) release ramp in relation to the nominal power.
Settings
130.62 P(f) limit type
130.63 P(f) corner frequency
130.64 P(f) limit gradient
130.65 P(f) release frequency
130.67 P(f) release ramp
130.68 P(f) release ramp ref
Plim/%
f/Hz
Power at
the time of
exceeding
corner point
130.63 P(f) corner
frequency
130.65 P(f)
release
frequency
130.62 P(f) limit type = Incremental
1
30.6
4
P
(
f) limit
g
r
a
die
n
t
130.67 P(f) release ramp