Low Voltage Ride Through (Lvrt) - Delta RPI-H3 Operation And Installation Manual

6.3 Low Voltage Ride Through (LVRT)

According to CEI 0-21, 8.5.1
To avoid undue separation from the network if voltage dips occur, a generation system
with over 6 kW total power must be able to comply with certain functional requirements,
which are known as LVRT(Low Voltage Ride Through) in international literature.
U
grid /
110%
100%
90 %
85 %
40 %
0%
U
n
200
0
Figure 6-4
Active/Reactive Power Control and LVRT (Optional)
1
2
3
400
: LVRT characteristic
33
time(ms)