Application

System designed to collect solar panels power in most efficient way.

Figure 1 MPP collector for solar panels

Technical description

MPPC (Maximum Power Point Collector) is designed to collect power from solar panels (1-3 units) to input of microinverter  Enphase M215-60-230-S22while staying panels in maximum power output mode. Solar panels output voltage must be from 6.5-18.5V diapason and might variate. Voltage close to 24V is provided in MPPC output. Collector also allows to read following data using ZigBee data transfer:

• each solar cell operating current / voltage,
• each solar cell short circuit current, open circuit voltage
• output current / voltage,
• MPPC temperature
• all parameters, except for short-circuit current and voltage of open channel, parameter change history according preset setup.

Creating process

Figure 2. MPPC electrical circuit diagram

Figure 3. Channel converter electrical circuit diagram

Figure 4. Battery commutator electrical circuit diagram

Figure 5. MPP collector PCB layout diagram