Engineers developing solar inverters implement MPPT algorithms to maximize the power generated by photovoltaic (PV) systems. The algorithms control the voltage to ensure that the system operates at “maximum power point” (or peak voltage) on the power voltage curve, as shown below.
MPPT algorithms are typically used in the controller designs for PV systems. The algorithms account for factors such as variable irradiance (sunlight) and temperature to ensure that the PV system generates maximum power at all times.
The three most common MPPT algorithms are: