A single phase multilevel inverter with reduced component count and enhancing performance parameter

Efficient and cost-effective power converters are essential in modern power applications. A viable solution for low and medium-voltage applications is multilevel inverters (MLIs). However, the widespread adoption of MLIs has been limited due to challenges such as a high number of switches, larger physical size, increased costs, complex control requirements, and multi-stage power conversion losses in switching conduction. Despite their promising role in industrial applications, these factors have hindered the market penetration of MLIs. This research offers a generalize single-phase direct converted multilevel inverter where the proposed MLI topology achieves a significant reduction in semiconductor components count rather than conventional topologies, minimizes physical weight and overall cost. The propose topology uses less number of switching conduction in every single mode which reduces the significant amount of switching loss as well as the control complexity. Optimal THD effectiveness for output voltage and current is assured by the use of unipolar modulation. Simulation results conducted in MATLAB/Simulink validate the viability of the suggested topology, while a comparative analysis with traditional inverter and the modern inverter topology highlights its advantages. A scaled-down laboratory prototype circuit board is designed to assure the feasibility. Results from both experiments and simulations show that the suggested topology is feasible and has many great qualities.