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

Conference paper (2014)

Authors

Christian A. Rojas Universidad Técnica Federico Santa María
Samir Kouro Universidad Técnica Federico Santa María
Daniel Edwards Universidad Técnica Federico Santa María
Bin Wu Toronto Metropolitan University
Sebastian Rivera Toronto Metropolitan University
Affiliation
External organisation
Multilevel converters Grid-connected PV converters Photovoltaic applications
More Info
expand_more

Published Date

24-02-2014

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Affiliation

External organisation

Abstract

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.