Solar - Microinverter
An inverter takes DC current and converts it to AC current. A microinverter is an inverter that is built
inside of the solar panel itself, converting the DC current generated by the solar panel into AC current.
With solar panels that use microinverters, the solar string is effectively generating AC current. In solar
power, a string is a row of solar panels tied together in parallel.
Each microinverter includes a microcontroller running a control loop that manages the complete DC to AC
conversion process, while maximizing the solar panel's output power to produce the optimum AC power for the
grid. The conversion process can vary depending on temperature, time of day, and cloud cover. A
microcontroller manages the inverter and the MPPT calculations by controlling how and when the MOSFETs in
the DC/DC converter fire in order to optimize the power output. The output of the microinverters are fed to
the Combiner Box.
Microinverter Block Diagram
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This design is for reference only. The design, as well as the products suggested, has not been tested
for compatibility or interoperability.
Canada
