Volume : III, Issue : VI, June - 2013

A New Topology for the Performance Improvement of Single Phase Cascaded Seven Level Inverter

M. S. Sivagamasundari, Dr. P. Melba Mary

Abstract :

Multilevel inverters have received more attention in recent years due to their ability to synthesize waveforms with a better harmonic spectrum and to attain higher voltages. This paper analyzes the performance issues of single phase cascaded seven level inverter and suggest the ways and means to improve the efficiency. The issues related to traditional inverters such as higher harmonic component, higher switching losses, higher output voltage and lower output quality are studied to improve the performance. These issues leads to decrease the efficiency of the system. In order to improve the efficiency of the system a new topology is proposed. The modified topology has only eight switches compared to the traditional cascaded H–Bridge multilevel inverter which employs twelve switches. This paper proposes a novel hyid pulse width modulation technique to reduce the total harmonic distortion and to improve the efficiency. The performance has been analyzed by the MATLAB/Simulink. The simulation output shows better performance results.

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

M.S.Sivagamasundari, Dr.P.Melba Mary A New Topology for the Performance Improvement of Single Phase Cascaded Seven Level Inverter Indian Journal of Applied Research, Vol.III, Issue.VI June 2013

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