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Go to Editorial ManagerMulti-level inverters, as a result of the significant contributions they have made to the fields of high voltage and renewable energy applications, MLI has earned a prestigious place in the field of industrial electronics applications. The use of MLI makes it possible to generate an alternating voltage from a DC voltage or from voltages that are continuously applied thanks to this capability. The quality of the produced wave depends on minimizing the level of total harmonic distortion (THD) in the ensuing output voltage. Increasing the total number of levels is required in order to bring down the THD. The bigger the number of layers, the lower the THD. On the other hand, this necessitates an increase in the number of power switches that are utilized, in addition to an increase in the number of DC sources for certain types. A greater number of levels are achieved in this work with a reduced number of switches, and the DC source necessitates the use of specialized control over the switches as well as the grading of the DC source values. In order to demonstrate that the suggested converter achieves the needed outcomes, the MATLAB simulator is utilized.
To support medium-voltage and high-power applications in flexible power systems, multilevel inverters, which are commonly referred to as MLIs, are currently being developed. The conventional configuration of a multilevel inverter, which aims to accommodate a wide range of applications, necessitates the use of additional switches and sources and is subject to certain constraints. Through the built-in control of the boost converter and the PWM for each level, this research aims to discover a new method that uses a boost converter to obtain an MLI with a minimum number of switches, maintaining this number constant as the number of levels increases. The research results clearly demonstrate the reduction of THD to small values through the use of the boost converter in the proposed method. MLI is usually used in renewable energy applications to obtain certain voltages, for example, from solar cells, therefore, simulations were conducted within the framework of photovoltaic (PV) cells as an input source. When MLI configuration integration is added to a PV system, a lower number of switching components are used for a defined number of voltage output levels. This is in contrast to typical multilevel inverter topologies, which require a larger number of switching components to manage the gating pulse of PV-based MLI. The MATLAB/SIMULINK program assisted in carrying out this work.