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Control Strategy of Cascaded H-Bridge Multilevel Inverter with PV System as Separate DC Source
KTH, School of Electrical Engineering (EES), Electrical Energy Conversion.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The integration of solar energy to the power grid is a challenging topic nowadays. Many topologies and control methods have already been proposed. In this thesis, the cascaded H-bridge (CHB) multilevel inverter is adopted for the photovoltaic (PV) energy integration. The purpose of this thesis is to develop a control strategy for the CHB multilevel inverter with PV array as separate DC source. The thesis first gives a short review of the three commonly used multilevel inverter topologies. Then the PV array with maximum power point tracker (MPPT) is modeled. The selection mechanism with some improvements is chosen as the control and modulation method for the CHB inverter with PV system. Real and reactive power exchange between the inverter and grid are also discussed. Finally, the simulation results are presented to verify the control methods. The software for the simulation is PSCAD/EMTDC and all the figures are plotted in MATLAB.

Place, publisher, year, edition, pages
2011. , 65 p.
Series
EES Examensarbete / Master Thesis, XR-EE-EME 2011:009
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-53663OAI: oai:DiVA.org:kth-53663DiVA: diva2:470576
Educational program
Master of Science - Electric Power Engineering
Uppsok
Technology
Examiners
Available from: 2012-01-19 Created: 2011-12-29 Last updated: 2012-03-16Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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