Why you need a MPPT solar charge controller?

Why you need a MPPT solar charge controller?

MPPT solar charge controller can detect the solar panel power generation voltage in real time, and track the highest voltage and current value (VI), so that the PV system can charge the battery at the maximum power output. MPPT solar charge controller is applied in solar photovoltaic system, coordinating the work of solar panel, battery and load, which is the brain of PV system.

What is the principle of MPPT charge controller? Firstly, it should detect the DC voltage and output current of the main circuit. Then the output power of the solar array should be calculated. And finally realize tracking the maximum power point.

The performance of solar cell module can be expressed by U-I curve. The instantaneous output power (U*I) of the solar cell moves along this U-I curve. The output of the solar cell is affected by the external circuit. Maximum power tracking technology is the use of power electronic devices with appropriate software to make solar cell always output maximum power. Without the maximum power tracking technology, the output power of the solar cell cannot reach the optimal value in any case, thus reducing the utilization rate of the solar cell module