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LUNA2000-200KTL-H0 Smart Power Control System
User Manual
No.
Category
46
47
Overfrequency
derating
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49
50
51
52
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54
Issue 05 (2022-06-30)
Parameter
Description
Initial delay in
Specifies the delay response
the frequency
time of frequency regulation.
sensitive mode
Overfrequency
If this parameter is set to
derating
Enable, the active power of
the device will be derated
according to a certain slope
when the grid frequency
exceeds the frequency that
triggers overfrequency-caused
derating.
Cutoff frequency
Specifies the frequency
of overfrequency
threshold for cutting off
derating (Hz)
overfrequency-caused
derating.
Cutoff power of
Specifies the power threshold
overfrequency
for cutting off overfrequency-
derating (%)
caused derating.
Trigger
The standards of certain
frequency of
countries and regions require
overfrequency
the output active power of
derating (Hz)
devices to be derated when
the power grid frequency
exceeds a certain value.
Quit frequency
Specifies the frequency
of overfrequency
threshold for exiting
derating (Hz)
overfrequency-caused
derating.
Power drop
Specifies the decrease rate of
gradient of
the overfrequency-caused
overfrequency
derating power.
derating (%/s)
Power recovery
Specifies the power recovery
gradient of
rate of the overfrequency-
overfrequency
caused derating.
derating (%/
min)
Frequency
Specifies the frequency
detection filter
detection filter time.
time (ms)
Copyright © Huawei Technologies Co., Ltd.
8 Device Commissioning
Remarks
-
-
● This parameter is
displayed when
the power
derating caused
by overfrequency
is set to Enable.
● The parameter
setting should
meet the
following
condition: Quit
frequency of
overfrequency
derating ≤
Trigger
frequency of
overfrequency
derating <
Cutoff frequency
of overfrequency
derating.
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67
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