• V.RAJESHWARI
• Dr.R.MURUGESAN

The multilevel inverters (MLIs) have gained lots of interest in industry and academia, as they are changing into a viable technology for numerous applications, such as renewable power conversion system and drives. For these high power and high/medium voltage applications, MLIs are widely used as one of the advanced power converter topologies. To produce high-quality output without the need for a large number of switches, development of reduced switch MLI (RS MLI) topology has been a major focus of current research. By a suitable combination of switches, the MLI produces a staircase output with low harmonic distortion. For a better understanding of the working principle, a single-phase RS MLI topology is experimentally illustrated for different level generation using both fundamental and high switching frequency techniques which will help the readers to gain the utmost knowledge for advance research. The proposed work improves the performance of coupled inductor based novel 11-level inverter with reduced number of switches. The inverter engenders the sinusoidal output voltage by the use of split inductor with minimised total harmonic distortion (THD). The voltage stress on each controlled switching devices, capacitor balancing and switching losses can be reduced. The proposed system gives better controlled output current and improved output voltage with moderate THD value. The switching devices of the system are controlled by using multicarrier sinusoidal pulse width modulation algorithm by comparing the carrier signals with sinusoidal signal. The simulation and experimental results of the proposed 11-level inverter system outputs are established using MATLAB/SIMULINK.

MLI, 11-level inverter and 9-level inverter and RS-MLI ,THD Value etc

"Reduced Switch Multilevel Inverter for Renewable Energy Integration and Drives Application", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 8, page no.c849-c859, August-2022, Available :http://www.jetir.org/papers/JETIR2208290.pdf

"Reduced Switch Multilevel Inverter for Renewable Energy Integration and Drives Application", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 8, page no. ppc849-c859, August-2022, Available at : http://www.jetir.org/papers/JETIR2208290.pdf