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This paper propose a Multilevel inverter with reduced switch count.The proposed inverter is a symmetrical type of inverter with bipolar PWM strategies.Phase Disposition (PD) strategy for Sinusoidal, Trapezoidal and Triangular reference with Triangular, Saw-tooth and Inverted Saw-tooth carrier strategy are simulated with the proposed topology.The performance has been analyzed with MATLAB/SIMULINK.By comparing the various references with various carrier strategies, it is observed that Trapezoidal signal provides less THD and higher fundamental RMS output voltage.
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Balamurugan et al. (2015) studied this question.
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