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This multilevel inverter methodology is the center of focus among researchers in recent era. It has been focused due to its advantages over existing topologies, drawbacks and improvement of power quality, Multi-level inverter has the ability to generate nearly sinusoidal waves. This sinusoidal wave can be further improved by increasing the level of output voltage or with the help of filter design, and this manuscript presents single-phase Multi cell Multi-Level Inverter (MLI). It has been considered for reducing component count to get a higher number of output voltage levels and lower Total harmonics distortion profile. It comprises with four symmetric DC input voltage and 10 IGBT switches to produces stepped output of 9 level, and when deploy asymmetric Dc voltage source the same circuit will produce 31 level output with some changes in firing scheme, moreover this circuit is the family of cascaded hybrid bridge inverter so this circuit covered advantage of CHB MLI, This circuit uses lower no. of switch as compared to existing conventional MLIs such as FC-MLI, CHB-MLI, NPC-MLI, This paper also provides one of most pertinent controls and modulation mechanisms for a MLI using a hybrid reference/carrier-oriented sinusoidal PWM mechanism. At last, simulated outcomes are to validate the performance of both architectures in MLI structure as well as verify the concept.

Design and Analysis of Cascaded Hybrid-Bridge Multi-Cell Multilevel Inverter with Reduced Total Harmonic Distortion Profile