Sungrow SG2K5-S User Manual

User Manual 2 Product Description
15
t (min)-2 0 5 10 15
20 25
25
20
40
60
80
100
Pm
Pnom
P/Pnom [%]
Pmin=0, Pm=25%*Pnom
Pmin
Gradient:
20%*Pnom
Gradient:
20%*Pm, not less than 5%*Pnom
Treset_derating
(5 min)
T1=T1max
=5 min
T2=
3.45 min
T2=T2max=15 min
Fig. 2-9 Power Restoration in Condition of Transient Over-frequency (IT)
Where the P
min
is the minimum power obtained during the transient
over-frequency.
Under-Frequency Response (only for “DE”, “NL”, “EU”, “PL”)
When there is a decrease in grid frequency which exceeds the Start value, the
inverter will increase the power output linearly with a decrease of frequency
until the End value is reached.
The under-frequency response function is disabled for “NL”, “EU” and “PL” by
default.
Tab. 2-12 Definition and Default Values for Under-frequency Response Parameters
Parameter
Description
DE
NL, EU, PL
Under-frequency
rising curve
Curve A: non-hysteresis
Curve B: hysteresis
-
-
Pm
The actual AC output power at
the instance when the frequency
reaches the Start frequency.
-
-
UnderFrq Start
The Start frequency value for
under-frequency response.
49.80 Hz
49.80 Hz
UnderFrq End
The Stop frequency value for
under-frequency response.
47.50 Hz
47.30 Hz
Gradient
The active power increase rate
relative to the actual power Pm
per Hz.
40% Pn/Hz
t
1-under
Under-frequency rising
response time.
0 s
0 s

Sungrow SG2K5-S Specifications

General

Brand	Sungrow
Model	SG2K5-S
Category	Inverter
Language	English