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Product Overview
2.5 Working Principle
2.5.1 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 direct current
generated from PV module or battery into alternating current that meets the requirements
of the power grid and feeds it into the power grid or supplies to the load. The principle
design of inverter is shown in the figure below:
DC EMI
Filter
MPPT 1
MPPT 2
DC BUS DC/AC
AC
Filter
DC SPD
DC Switch
AC SPD
PV1+
PV1-
PV2+
PV2-
BAT+
BAT-
EPS L1
EPS L2
EPS L3
EPS N
Grid L1
Grid L2
Grid L3
Grid N
DC/DC
DC EMI
Filter
AC
Relay
AC
EMI
EPS
Relay
EPS
EMI
Bypass
Relay
PE
Relay
Figure 2-5 Circuit Diagram for X3-Hybrid G4 series inverter
NOTICE!
• For 5 kW and 6 kW inverter, PV 1 MPPT connects one string only.
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