An Improved Z-Source Inverter for Reduction in Inrush Current and Stress on Capacitor

International Journal of Electrical and Electronics Engineering

© 2017 by SSRG - IJEEE Journal

Volume 4 Issue 7

Year of Publication : 2017

Authors : Barla Pavani, Kanuri Venkatesh, Pudi Sekhar

10.14445/23488379/IJEEE-V4I7P106

How to Cite?

Barla Pavani, Kanuri Venkatesh, Pudi Sekhar, "An Improved Z-Source Inverter for Reduction in Inrush Current and Stress on Capacitor," SSRG International Journal of Electrical and Electronics Engineering, vol. 4,  no. 7, pp. 27-30, 2017. Crossref, https://doi.org/10.14445/23488379/IJEEE-V4I7P106

Abstract:

The Z-Source inverter is used to perform the buck-boost functions, however an increase the startup inrush current and stress on the capacitor is observed. In order to overcome these problems, an improved Z-source inverter(ZSI) topology is presented. The startup inrush current is reduced and the resonance between the Z-inductors and Z-capacitors is prevented in the improved ZSI topology. Further, a comparison is made between the improved ZSI and the traditional ZSI topology. To realize the performance of improved ZSI, simulations are carried out using MATLAB/Simulink. It has been observed that the startup inrush current is reduced and the resonance at the Z-inductors and Z-capacitors is avoided.

Keywords:

Startup inrush current, Z-Source inverter, traditional Z-source inverter topology, modulation techniques.

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