Dwi Putra Rhamanda Ajilia, Sujito, Muis Muhtadi, Dila Umnia Soraya, Mahfud Jiono, Al Vito Anasrulloh
Multilevel inverter (MLI) have advanced significantly, particularly in renewable energy systems like Solar Power Plants (PLTS), which produce Direct Current (DC). Previous studies have shown that inverters generating 11level waveforms require many MOSFET components, increasing production costs and leading to high Total Harmonic Distortion (THD) due to the complexity of switching methods. This study proposes a solution by developing a New Cascade Multilevel Inverter topology that uses only 8 MOSFETs to generate an 11-level waveform, reducing the number of components and simplifying the switching method. The research contribution lies in offering a novel inverter topology that improves efficiency with fewer components, enhances modularity, and maintains high power performance. The methodology involves using MATLAB Simulink for simulation, with the designed topology and Selective Harmonic Elimination Pulse Width Modulation (SHEPWM) as the switching method, controlled by a Pulse Generator within the simulation. The results indicate that this new inverter topology achieves a THD value of 3.59% across all load types (resistive, resistive-inductive, and resistive-capacitive) and a power efficiency of 9 9. 8 5 %, calculated by comparing the input and output currents of the inverter connected to the load. this study analyzes a new inverter topology capable of producing an 11-level waveform using only 8 MOSFETs, achieving a THD value of 3. 5 9 %, and a power efficiency of 9 9. 8 5 %, tested with three different load combinations. © 2024 IEEE.
State University of Malang, Departement of Electrical and Informatics Engineering, Malang, Indonesia