Five-level H-bridge NPC central photovoltaic inverter with open-end winding grid connection

Christian A. Rojas, Samir Kouro, Daniel Edwards, Bin Wu, Sebastian Rivera

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations


This investigation presents a grid-connected five-level H-bridge neutral-point-clamped converter operating with a single dc-link as photovoltaic power source. The operation with a single dc-bus is enabled by adding a transformer with open-end winding secondary, where each power cell of the converter is connected. The proposed control scheme is validated trough simulation results and tested under dynamic conditions. It can be implemented with a good tracking of the active and reactive power references injected to the grid. The results serve as a preliminary validation to potential utilization of the converter in large scale photovoltaic energy conversion systems.

Original languageEnglish
Title of host publicationIECON Proceedings (Industrial Electronics Conference)
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781479940325
StatePublished - 24 Feb 2014
Externally publishedYes

Publication series

NameIECON Proceedings (Industrial Electronics Conference)

Bibliographical note

Publisher Copyright:
© 2014 IEEE.


  • Grid-connected PV converters
  • Multilevel converters
  • Photovoltaic applications


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