TY - JOUR A1 - Mahto, Kailash Kumar A1 - Mahato, Bidyut A1 - Chandan, Bikramaditya A1 - Das, Durbanjali A1 - Das, Priyanath A1 - Fotis, Georgios A1 - Vita, Vasiliki A1 - Mann, Michael T1 - A New Symmetrical Source-Based DC/AC Converter with Experimental Verification JF - Electronics N2 - This research paper introduces a new topology for multilevel inverters, emphasizing the reduction of harmonic distortion and the optimization of the component count. The complexity of an inverter is determined by the number of power switches, which is significantly reduced in the presented topology, as fewer switches require fewer driver circuits. In this proposed topology, a new single-phase generalized multilevel inverter is analyzed with an equal magnitude of voltage supply. A 9-level, 11-level, or 13-level symmetrical inverter with RL load is analyzed in MATLAB/Simulink 2019b and then experimentally validated using the dSPACE-1103 controller. The experimental verification of the load voltage and current with different modulation indices is also presented. The analysis of the proposed topology concludes that the total required number of components is lower than that necessary for the classical inverter topologies, as well as for some new proposed multilevel inverters that are also compared with the proposed topology in terms of gate driver circuits, power switches, and DC sources, which thereby enhances the goodness of the proposed topology. Thus, a comparison of this inverter with the other topologies validates its acceptance. KW - Spannungswandler KW - Mehrpunktwechselrichter Y1 - 2024 U6 - https://doi.org/http://dx.doi.org/10.3390/electronics13101975 SN - 2079-9292 VL - 13 IS - 10 PB - MDPI AG ER - TY - JOUR A1 - Das, Durbanjali A1 - Mahato, Bidyut A1 - Chandan, Bikramaditya A1 - Joshi, Hitesh A1 - Mahto, Kailash Kumar A1 - Das, Priyanath A1 - Fotis, Georgios A1 - Vita, Vasiliki A1 - Mann, Michael T1 - A New Cascaded Multilevel Inverter for Modular Structure and Reduced Passive Components JF - Electronics N2 - In high-power applications, achieving adequate power quality in power converter design is accomplished by utilizing multilevel inverters instead of using two-level and three-level inverters. The device generates a sinusoidal output voltage, which results in reduced total harmonic distortion and lower voltage stress on the switches and leads to lower electromagnetic interference, making it suitable for use in renewable energy applications. However, to illustrate the advantages mentioned above, a significant number of switching devices and DC sources are necessary while raising the voltage levels. This article proposes an asymmetrical voltage generation method, which operates in a ratio of 1:5 and generates 25 levels using 11 power switches. The topology is modular in structure, and each module has a lower component count, which significantly reduces the overall cost. The proposed topology is capable of generating negative output voltage levels without the use of an H-bridge configuration, where only three switches are used to generate any voltage levels. The functionality of the developed module is amended by fixing different voltage values in DC sources. This article also presents a comprehensive examination of the circuit and the functioning of various voltage levels. The advantages of the proposed inverter have been demonstrated by comparative research with the currently existing MLI topologies. Ultimately, both the simulation and experimental findings validated the practical capabilities. KW - Mehrpunktwechselrichter Y1 - 2024 U6 - https://doi.org/http://dx.doi.org/10.3390/electronics13173566 SN - 2079-9292 VL - 13 IS - 17 PB - MDPI AG ER -