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Title: | Unified MPPT control strategy for Z-source inverter based photovoltaic power conversion systems |
Authors: | Sengodan, Thangaprakash thangaprakash@unimap.edu.my |
Keywords: | Capacitor voltage control Maximum power point tracking Photovoltaic array Pulse width modulation Z-source inverter |
Issue Date: | Jan-2012 |
Publisher: | The Korean Institute of Power Electronics |
Citation: | Journal of Power Electronics, vol. 12(1), 2012, pages 172-180 |
Abstract: | Z-source inverters (ZSI) are used to realize both DC voltage boost and DC-AC inversion in single stage with a reduced number of power switching devices. A traditional MPPT control algorithm provides a shoot-through interval which should be inserted in the switching waveforms of the inverter to output the maximum power to the Z-network. At this instant, the voltage across the Z-source capacitor is equal to the output voltage of a PV array at the maximum power point (MPP). The control of the Z-source capacitor voltage beyond the MPP voltage of a PV array is not facilitated in traditional MPPT algorithms. This paper presents a unified MPPT control algorithm to simultaneously achieve MPPT as well as Z-source capacitor voltage control. Development and implementation of the proposed algorithm and a comparison with traditional results are discussed. The effectiveness of the proposed unified MPPT control strategy is implemented in Matlab/Simulink software and verified by experimental results |
Description: | Link to publisher's homepage at http://eng.kipe.or.kr/ |
URI: | http://www.jpe.or.kr/archives/list_detail_articles.asp?seq=49&year=%202012 http://dspace.unimap.edu.my:80/dspace/handle/123456789/32064 |
ISSN: | 1598-2092 |
Appears in Collections: | School of Electrical Systems Engineering (Articles) |
Files in This Item:
File | Description | Size | Format | |
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Unified MPPT control strategy for Z-source inverter based photovoltaic power conversion systems.pdf | 2.07 MB | Adobe PDF | View/Open |
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