ANALYSIS OF HARMONIC INJECTION TO THE MODULATION OF MULTI-LEVEL DIODE CLAMPED CONVERTER IN A NORMAL AND OVER MODULATION MODE

CO Omeje; DBN Nnadi; CI Odeh

doi:10.4314/njt.321.609

ANALYSIS OF HARMONIC INJECTION TO THE MODULATION OF MULTI-LEVEL DIODE CLAMPED CONVERTER IN A NORMAL AND OVER MODULATION MODE

Authors

CO Omeje Department of Electrical Engineering, University of Nigeria, Nsukka
DBN Nnadi Department of Electrical Engineering, University of Nigeria, Nsukka
CI Odeh Department of Electrical Engineering, University of Nigeria, Nsukka

DOI:

https://doi.org/10.4314/njt.321.609

Keywords:

Harmonic Injected Modulation, Spectral analysis, pulse width modulation, diode clamped converter, modulation.

Abstract

This paper explores the analysis of third and ninth harmonic injection to the modulation of a multi-level diode clamped converter (DCC) at a varying modulation index. The spectral distributions of the various multi-level waveforms obtained under normal modulation index of 0.8 and over modulation index of 1.15 were presented in this work. The contribution of this paper is rooted in the introduction of ninth harmonic component to higher-levels of diode clamped converters with reference to the existing third order harmonic injected modulation with detailed Simulink models of 3^rd, 5^th and 9^th voltage levels. The analysis and results obtained from this work shows appreciable reduction in the magnitudes of harmonic distortion values thus ensuring optimum and efficient devices performance.

Author Biography

CI Odeh, Department of Electrical Engineering, University of Nigeria, Nsukka

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Issue

Vol. 32 No. 1 (2013)

Section

Research papers of General Interest

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How to Cite

ANALYSIS OF HARMONIC INJECTION TO THE MODULATION OF MULTI-LEVEL DIODE CLAMPED CONVERTER IN A NORMAL AND OVER MODULATION MODE. (2013). Nigerian Journal of Technology, 32(1), 67-80. https://doi.org/10.4314/njt.321.609