00The full name of MPPT controller is “maximum power point tracking” solar controller, which is an upgraded product of traditional solar charge and discharge controller.
The MPPT controller can detect the generation voltage of the solar panel in real time and track the maximum voltage and current value (VI), so that the system can charge the battery with the maximum power output. It is the brain of photovoltaic system to coordinate the work of solar panels, batteries and loads.
Main functions of MPPT controller: detect the DC voltage and output current of main circuit, calculate the output power of solar array, and track the maximum power point. The disturbance resistor R and MOSFET are connected in series. Under the condition that the output voltage is basically stable, the average current through the resistor is changed by changing the duty cycle of MOSFET, so the current disturbance is generated.
The output current and voltage of the photovoltaic cell will also change accordingly. The change of the output power and voltage of the photovoltaic cell before and after the disturbance is measured to determine the disturbance direction of the next cycle. When the disturbance direction is correct, the output power of the solar energy panel will increase, and the next cycle will continue to disturb in the same direction, otherwise, it will disturb in the opposite direction, Repeated disturbance and observation are carried out to make the output of solar photovoltaic panel reach the maximum power point.
48V to 220V power inverters PI Series
Integrated PCBA board: assembled with copper high frequency transformers, high capacity electrolytic Capacitor, First hand IR transistors, detachable advanced IC based controller daughter board, St...