A Two Stage Topology Inverter for Off-Grid Solar PV: Design and Implementation

Renewable energy usage steadily increased in power generation because of their diversity. Solar cells are devices for converting solar energy into electrical energy. Inverter plays an important role in changing DC to AC voltage. Although the installed capacity of PV power plants is increasing, overall efficiency depends on the performance of PV modules, power converters and control methods subsequently. The purpose of this research is to design an inverter that has good efficiency of various load with more focused on circuit topology. The essence of a sinusoidal inverter lies in its control method, where the waveform and frequency are determined by this controller. This Two-Stage Topology Inverter uses Arduino UNO as a wave generator, MOSFET with type IRFZ44N, and a transformer with a rating of 5A. The result to be obtained is an inverter that has a good level of efficiency in terms of the circuit with the Arduino UNO microcontroller as the SPWM signal generator controller with a pure sinusoidal wave output of 220V with a frequency of 50 Hz.