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GENERAL INFORMATION:
Suppose the program works improperly after appearing Multi-MPP. In
that case, the system will not work on the real max power point, which
may waste most solar energy resources and seriously aect the system's
normal operation. The typical MPPT algorithm, designed by our company,
can track the real MPP quickly and accurately. It can improve the PV array's
utilization rate and avoid resource waste.
BATTERY CHARGING STAGE
The controller has a three-stage battery charging algorithm, including Bulk
Charging, Constant Charging, and Float Charging. Through the three-stage
charging method, the system can extend the battery's lifespan.
Figure 1-4 Battery charging stage curve
A) Bulk Charging
The battery voltage has not yet reached constant voltage (Equalize or
Boost Charging Voltage). The controller operates in constant current
mode, delivering its maximum current to the batteries (MPPT Charging).
When the battery voltage reaches the constant voltage set point, the
controller will start to operate in constant charging mode.
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