Efficiency Improvement of Three-Phase Cascaded H-Bridge Multilevel Inverters for Photovoltaic Systems
Joint Authors
Thitichaiworakorn, Nuntawat
Chayopitak, Nattapon
Hatti, Natchpong
Source
International Journal of Photoenergy
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-07
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Medium-scale photovoltaic (PV) systems using cascaded H-bridge multilevel inverters have a capability to perform individual maximum power point tracking (MPPT) for each PV panel or each small group of panels, resulting in minimization of both power losses from panel mismatch and effect of partial shading.
They also provide high power quality, modularity, and possibility of eliminating dc-dc boost stage and line-frequency transformer.
However, each PV panel in the system is subjected to a double-line-frequency voltage ripple at the dc-link which reduces the MPPT efficiency.
This paper proposes a dc-link voltage ripple reduction by third-harmonic zero-sequence voltage injection for improving the MPPT efficiency.
Moreover, a control method to achieve individual MPPT control of each inverter cell is also presented.
The validity and effectiveness of the proposed methods were verified by computer simulation.
American Psychological Association (APA)
Thitichaiworakorn, Nuntawat& Chayopitak, Nattapon& Hatti, Natchpong. 2016. Efficiency Improvement of Three-Phase Cascaded H-Bridge Multilevel Inverters for Photovoltaic Systems. International Journal of Photoenergy،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1106438
Modern Language Association (MLA)
Thitichaiworakorn, Nuntawat…[et al.]. Efficiency Improvement of Three-Phase Cascaded H-Bridge Multilevel Inverters for Photovoltaic Systems. International Journal of Photoenergy No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1106438
American Medical Association (AMA)
Thitichaiworakorn, Nuntawat& Chayopitak, Nattapon& Hatti, Natchpong. Efficiency Improvement of Three-Phase Cascaded H-Bridge Multilevel Inverters for Photovoltaic Systems. International Journal of Photoenergy. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1106438
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1106438