Construction and Application of a Five-Level Inverter for Maximum Power Point Tracking (MPPT) of the Photovoltaic Systems (PV)

Considering the high initial cost of a solar system, achieving maximum power output is crucial. In this paper, the Nemo conduction method is utilized to reach the maximum power point of an 80W solar module. This method is also used to supply power to an Ohmic inductor load from a five-level inverter with an active diode barrier at the output of a boost converter. With this setup, a two-level five-level inverter has been developed, and a predictive control method is employed to regulate the inverter, resulting in a five-level waveform at the output. The predictive control simulation successfully generates a five-level three-phase voltage while ensuring that the output current closely tracks the reference current and the voltage of the floating capacitors is controlled. The construction and simulation results demonstrate the accuracy and speed of locating the optimal point to maximize energy production.