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Product Overview
2.4.2 Circuit Diagram
The inverter is equipped with multi-channel MPPT for DC input to ensure maximum power
even under different photovoltaic input conditions. The inverter unit converts DC into
AC that meets the requirements of the power grid and feeds it into the power grid. The
lightning arrester at AC / DC side can realize the function of surge protection. The principle
design of inverter is shown in the figure below:
Grid
PV1
PV2
+
-
+
-
BAT
DC switch
DC SPD
DC
EMI
Fliter
DC EMI
Fliter
MPPT1
(Boost1)
MPPT2
(Boost2)
DC/DC
DC BUS DC/AC
AC
Fliter
AC
Relay
AC
EMI
EPS
Relay
EPS
EMI
Bypass
Relay
AC SPD
L1
L2
L3
N
PE
L1
L2
L3
N
EPS
+
-
+
-
Figure 2-23 Circuit Diagram