Commenced in January 2007
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Advanced Pulse Width Modulation Techniques for Z Source Multi Level Inverter

Authors: D. V. Ashok Kumar, B. M. Manjunatha, M. Vijay Kumar

Abstract:

This paper proposes five level diode clamped Z source Inverter. The existing PWM techniques used for ZSI are restricted for two level. The two level Z Source Inverter have high harmonic distortions which effects the performance of the grid connected PV system. To improve the performance of the system the number of voltage levels in the output waveform need to be increased. This paper presents comparative analysis of a five level diode clamped Z source Inverter with different carrier based Modified Pulse Width Modulation techniques. The parameters considered for comparison are output voltage, voltage gain, voltage stress across switch and total harmonic distortion when powered by same DC supply. Analytical results are verified using MATLAB.

Keywords: pulse width modulation, Diode Clamped, total harmonic distortion, Z Source Inverter

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1100268

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References:


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