Abstract
This paper presents a new single phase H-bridge multilevel inverter topology using reverse- connected voltage source along with a different pulse width modulation (PWM) strategy, to extract a variable frequency variable amplitude output voltage. It involves the use of reduced number of switching devices for a specific number of output voltage levels in comparison with conventional MLIs. Using this configuration, the total harmonic distortion is reduced as total harmonic distortion plays an important role in medium voltage and high power applications for better operation so here with new proposed topology the total harmonic distortion diminishes. In this paper simulation results of the proposed multilevel inverter for a single-phase 7- level multilevel inverter are presented and the total harmonic distortions results of 7, 9, 11-level with different modulation index are shown.
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