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.
|Title of host publication||IECON Proceedings (Industrial Electronics Conference)|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||6|
|State||Published - 24 Feb 2014|
|Name||IECON Proceedings (Industrial Electronics Conference)|
Bibliographical notePublisher Copyright:
© 2014 IEEE.
- Grid-connected PV converters
- Multilevel converters
- Photovoltaic applications