Comparison between Optimal Minimization of Total Harmonic Distortion and Harmonic Elimination with Voltage Control candidates for Multilevel Inverters.

This paper is devoted to the comparative evaluation of the two modulation
strategies developed for multilevel inverters control : the harmonic elimination
technique with voltage control (OHSW) and the optimal minimization of the total
harmonic distortion method (OMTHD), which are a very important and efficient
strategies of eliminating selected harmonics from spectrum of the output voltage or
minimizing its total harmonic distortion in order to improve its quality. First, we
describe briefly the basic idea and concept of each technique. Then, we present a
study of the performances of each one by the means of a comparison between them.
Simulation has also been presented to establish the effectiveness of the proposed
analysis. Finally, we conclude with scope of further work.

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