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Title: | A new switching scheme for Z-source inverter to minimize ripples in the Z-source elements |
Authors: | Sengodan, Thangaprakash Ammasai, Krishnan, Dr. thangaprakash@unimap.edu.my a_krishnan26@hotmail.com |
Keywords: | Pulse width modulation (PWM) Ripples Shoot-through Total harmonic distortion Z-source inverter (ZSI) |
Issue Date: | Apr-2012 |
Publisher: | Springer Verlag |
Citation: | International Journal of Automation and Computing, vol. 9(2), 2012, pages 200-210 |
Abstract: | This paper presents a modification in pulse width modulation (PWM) scheme with unequal shoot-through distribution for the Z-source inverter (ZSI) which can minimize ripples in the current through the Z-source inductors as well as the voltage across the Z-source capacitors. For the same system parameters, the proposed control technique provides better voltage boost across the Z-source capacitor, DC-link, and also the AC output voltage than the traditional PWM. The ripples in the Z-network elements are found to be reduced by 75% in the proposed modulation scheme with optimum harmonic profile in the AC output. Since the Z-network requirement will be based on the ripple profile of the elements, the Z-network requirements can be greatly reduced. The effectiveness of the proposed modulation scheme has been simulated in Matlab/Simulink software and the results are validated by the experiment in the laboratory. |
Description: | Link to publisher's homepage at http://link.springer.com/ |
URI: | http://dspace.unimap.edu.my:80/dspace/handle/123456789/32065 |
ISSN: | 1476-8186 http://link.springer.com/article/10.1007%2Fs11633-012-0634-4 |
Appears in Collections: | School of Electrical Systems Engineering (Articles) |
Files in This Item:
File | Description | Size | Format | |
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A novel capacitor voltage control for Z-source inverter based photovoltaic power conversion systems.pdf | 36.21 kB | Adobe PDF | View/Open |
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