5
If the program works improperly after appearing Multi-MPP, the system will not
work on the real max power point, which may waste most solar energy
resources and seriously affect the normal operation of the system. The typical
MPPT algorithm, designed by our company, can track the real MPP quickly and
accurately, improve the utilization rate of the array and avoid the waste of
resources.
1.5 Battery Charging Stage
The controller has a 3 stages battery charging algorithm (Bulk Charging,
Constant Charging and Float Charging) for rapid, efficient, and safe battery
charging.
A) Bulk Charging
In this stage, the battery voltage has not yet reached constant voltage (Equalize
or Boost Voltage), the controller operates in constant current mode, delivering
its maximum current to the batteries (MPPT Charging).
B) Constant Charging
When the battery voltage reaches the constant voltage setpoint, the controller
will start to operate in constant charging mode, this process is no longer MPPT
charging, and in the meantime the charging current will drop gradually, the
process is not the MPPT charging. The Constant Charging has 2 stages,
equalize and boost. These two stages are not carried out constantly in a full
charge process to avoid too much gas precipitation or overheating of battery.
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