Single phase seven level Z-source cascaded H-bridge inverter for photovoltaic systems

K. M. Venkatachalam, V Saravanan, M. A. K. Borelessa, K. T. M.U. Hemapala

Abstract


The Multilevel inverter (MLI) is identified as a viable power electronic unit for distributed energy conversion applications. In this paper discusses the performance of single phase seven level Z (impedance) source cascaded H-bridge inverter topology suited for solar photovoltaic systems. A modified sinusoidal pulse width modulation technique is used to control the switches of the H-bridge inverter. The simulation results are obtained interms of inverter output voltage and harmonic analysis confirm improvement in voltage boost and reduction in harmonic distortion of the suggested inverter topology. The experimental results matches with the simulation values, as verified through a scaled down prototype.


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References


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DOI: http://doi.org/10.11591/ijaas.v10.i1.pp60-69

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