Print Email Facebook Twitter Design and comparison of a 10-kW interleaved boost converter for PV application using Si and SiC devices Title Design and comparison of a 10-kW interleaved boost converter for PV application using Si and SiC devices Author Chandra Mouli, G.R. (TU Delft DC systems, Energy conversion & Storage) Schijffelen, Jos H. (Power Research Electronics BV) Bauer, P. (TU Delft DC systems, Energy conversion & Storage) Zeman, M. (TU Delft Electrical Sustainable Energy) Department Electrical Sustainable Energy Date 2017-06-01 Abstract Grid-connected photovoltaic (PV) inverters have a dc/dc converter connected to the PV for executing the maximum power point tracking. The design of an interleaved boost converter (IBC) with three switching legs for a 10-kW PV inverter is presented in this paper. This paper shows how the use of silicon carbide (SiC) switches and powdered iron core inductors enables the operation of the converter at a higher switching frequency and when increasing the converter power density. The IBC is designed using a 1.2-kV SiC MOSFET and Schottky diodes and Kool Mμ powdered iron inductors. The design is compared with an IBC built with a silicon (Si) IGBT, fast recovery Si diodes, and ferrite cores. The use of SiC devices reduces the switching loses drastically and there are no reverse recovery losses, resulting in improved efficiency. The higher frequency and higher saturation flux density of the powdered iron core enable the reduction in core size by three times. A 10-kW prototype is built and tested for both the Si and SiC designs and compared with theoretical estimations. Subject Interleaved boost converter (IBC)Photovoltaic (PV) systemsPowered iron coreSilicon carbide (SiC) To reference this document use: http://resolver.tudelft.nl/uuid:fcea6bff-8764-4c2c-acbf-5c07bab643e5 DOI https://doi.org/10.1109/JESTPE.2016.2601165 ISSN 2168-6777 Source IEEE Journal of Emerging and Selected Topics in Power Electronics, 5 (2), 610-623 Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2017 G.R. Chandra Mouli, Jos H. Schijffelen, P. Bauer, M. Zeman Files PDF 18417964.pdf 1.96 MB Close viewer /islandora/object/uuid:fcea6bff-8764-4c2c-acbf-5c07bab643e5/datastream/OBJ/view