OutBack Power Alino TL Series, Руководство пользователя

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Operation
900-0248-01-00 Rev A
27
Battery Charging
The Alino can convert incoming power to charge the batteries. When charging from PV power,
the process is represented by the
A
series of icons. When charging from the utility grid, it is
represented by the
B
series of icons. Both are possible at once (
C
).
Figure 20 Battery Charging
BYPASS indicates that the transfer circuit (see page 30) can support loads while charging.
NOTE:
The charger can operate if the Alino is not turned on. It can also operate if the system is shut
down with an error code.
Three-Stage Charging
This charger follows a cycle of three stages: Bulk, Absorption, and Float.
o
Bulk: The first stage. It is a constant-current (C.C.) stage which drives the battery voltage to the
Bulk voltage set point. It typically charges the batteries to between 75% and 90% of their capacity.
See item
26 on page 32.
o Absorption: The second stage. It is a constant-voltage (C.V.) stage with variable current which
holds the batteries at the Bulk voltage. The length of this stage is the duration of the Bulk stage
multiplied by ten. (It has a minimum time of 10 minutes and a maximum of 8 hours.) Absorption
charges the batteries to 100% of their capacity.
o Float: The third stage. It is a C.V. stage which maintains the batteries in a fully-charged state.
See item
27 on page 32.
Figure 21 Three-Stage Charging
MPPT
BYPASS
MPPT
A B C
BYPASS
Float
Bulk
VOLTAGE
Battery Voltage
Absorption
CURRENT
TIME
Charge Current
Bulk Set Point
Float Set Point
Maximum
Charge
Current