Analysis of various carrier modulation schemes for modified CHB multilevel inverter with half-bridge cell

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International Journal of Development Research

Analysis of various carrier modulation schemes for modified CHB multilevel inverter with half-bridge cell

Abstract: 

This paper comprises of various Carrier overlapping PWM scheme with performance evaluation for Modified Cascaded H-Bridge Multilevel Inverter (M-CHB-MLI). This topology consists of a Half Bridge cells DC voltage sources. Instead of 16-controlled switches used in conventional topology for 9-level output voltage, only twelve controlled switches are required for Modified Cascaded H-Bridge Multilevel Inverter topology which in turn reduces the complexity and also improves its performance parameters. The various carrier modulation schemes are applied to analyze its output voltage harmonics and Vrms.

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