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A 7-level inverter with less number of switches for grid-tied PV applications

Journal: International Journal of Advanced Technology and Engineering Exploration (IJATEE) (Vol.8, No. 78)

Publication Date:

Authors : ; ;

Page : 631-642

Keywords : Multilevel inverter (MLI); Pulse width modulation (PWM); Phase opposition disposition (POD); Photovoltaic (PV) systems; Reduced switch components (RSC); Total harmonic distortion (THD).;

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In the current context, Medium Voltage High Power (MVHP) applications are developing industrial technologies. The direct connection of a photovoltaic (PV) system to an MVHP system may cause various connectivity challenges. To address the interconnection difficulties, this paper describes a 7-Levl Cascaded H-Bridge Multilevel Inverter (CHB-MLI) architecture with fewer switches and lower harmonics. This article proposes the Reduced Switch Multilevel Inverter (RSMLI). This design is less expensive than traditional Multilevel Inverter (MLI) topologies, and it is ideally suited for medium voltage and high-power applications since it synthesizes numerous Direct Current (DC) sources. The innovative 7-level inverter is represented with a decreased number of switches using the Phase Opposition Disposition (POD) methodology. The lower switch count helps the construction of simple converter structures. To boost performance, the MATLAB/Simulink results are evaluated.

Last modified: 2021-06-03 16:57:44