TY - JOUR
T1 - Design and comparison of a 10-kW interleaved boost converter for PV application using Si and SiC devices
AU - Chandra Mouli, Gautham Ram
AU - Schijffelen, Jos H.
AU - Bauer, Pavol
AU - Zeman, Miroslav
N1 - Accepted Author Manuscript
PY - 2017/6/1
Y1 - 2017/6/1
N2 - 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.
AB - 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.
KW - Interleaved boost converter (IBC)
KW - Photovoltaic (PV) systems
KW - Powered iron core
KW - Silicon carbide (SiC)
UR - http://www.scopus.com/inward/record.url?scp=85019145685&partnerID=8YFLogxK
UR - http://resolver.tudelft.nl/uuid:fcea6bff-8764-4c2c-acbf-5c07bab643e5
U2 - 10.1109/JESTPE.2016.2601165
DO - 10.1109/JESTPE.2016.2601165
M3 - Article
AN - SCOPUS:85019145685
SN - 2168-6777
VL - 5
SP - 610
EP - 623
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
IS - 2
M1 - 7546915
ER -