Bonfring International Journal of Power Systems and Integrated Circuits

Online ISSN: 2277-5072 | Print ISSN: 2250-1088 | Frequency: 4 Issues/Year

Impact Factor: 0.651 | International Scientific Indexing(ISI) calculate based on International Citation Report(ICR)

Z-Source Multilevel Inverter for Uninterruptible Power Supply Application

S. Kanimozhi and R. Senthil Kumar

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Abstract:

This paper proposes a seven level Z-source multilevel inverter designed with three intermediate Z-source networks connected between the dc input source and inverter circuit. Multilevel inverters posses the advantage of reduced harmonics ,high-power capability and high-voltage level but switching losses are more due to the increased switching circuit. Switching losses can be minimized by either soft switching techniques or by modifying modulation technique by employing sinusoidal PWM-based techniques. The multicarrier pulse width modulation Cascaded multilevel inverter strategy enhances the fundamental output voltage and reduces total harmonic distortion. In this paper various simulation results are presented using MATLAB/SIMULINK.

Keywords: Z-Source Inverter, Cascaded Multilevel Inverter, Multicarrier Pulse Width Modulation

Volume: 2 | Issue: Special Issue on Communication Technology Interventions for Rural and Social Development

Pages: 20-24

Issue Date: February , 2012