PERFORMANCE ANALYSIS OF MULTI-LEVEL INVERTER USING NON-IDENTICAL CARRIERS-BASED PULSE WIDTH MODULATION TECHNIQUES

In this paper, new types of pulse width modulation techniques are proposed to improve the performance of multi-level inverter. The effort is taken for this performance improvement without making any changes in the material of the multi-level inverter. Multi-level inverter performance depends on pulse width modulation technique adopted in it. The proposed techniques have the characteristics of exhibiting less total harmonic distortion. The output voltage is also improved. In this paper, these proposed techniques are applied to multi-level inverter and the performances are evaluated. It is simulated in MATLAB/Simulink and the results are obtained. The results are compared with the conventional method to look into its validity.