User Manual

1
01 Introduction User Manual V1.3
1.1 Operation Modes Introduction
01 Introduction
The A-BP series, also called AC-coupled or bidirectional inverters, provides energy management
in a PV system that includes solar modules (or not), a battery, loads, and utility grid connection.
Energy produced by the PV system will be used to optimize self-consumption, excess will be used
to charge the battery, anymore could be exported to the grid. The battery shall discharge to
support loads when PV power is insucient to meet self-consumption needs. If battery power is
not sucient, the system will take power from the utility grid to support loads.
When the A-BP inverter is operating in o-grid mode (disconnected the utility grid), it will create
a micro-grid. The PV Inverter will accept this micro-grid and will therefore operate even during a
black-out. Similar to on-grid mode: when the PV power exceeds the load, excess will be charged
the battery through the A-BP inverter.
The preceding introduction describes the general operation
of the A-BP system. The operation mode can be changed
with the PV Master app based on the system layout. The
possible operation modes for the A-BP system are shown
below.
A-BP system normally has the following operation modes based on your conguration and
layout conditions.
Mode I
Energy from PV inverter optimize loads,
excess will be used to charge the battery, any
remaining excess will be exported to the grid.
Mode III
When grid power fails, A-BP inverter creates
a micro grid, and the weight of the load
determines whether PV energy ows into the
load or charges the battery.
Mode II
When energy from PV inverter is weak,
battery will discharge to support the load in
priority together with the grid.
Mode IV
Battery could be charged by grid, and
charge time/power could be set exibly on
PV Master APP.