Analysis and Design of a High-Efficiency SiC MOSFET 6-Phase Boost Rectifier

Giulia Di Nezio, Marco di Benedetto, Alessandro Lidozzi and Luca Solero
Additional contact information
Giulia Di Nezio: C-PED Center for Power Electronics and Drives, Department of Engineering, Roma Tre University, 00146 Roma, Italy
Marco di Benedetto: C-PED Center for Power Electronics and Drives, Department of Engineering, Roma Tre University, 00146 Roma, Italy
Alessandro Lidozzi: C-PED Center for Power Electronics and Drives, Department of Engineering, Roma Tre University, 00146 Roma, Italy
Luca Solero: C-PED Center for Power Electronics and Drives, Department of Engineering, Roma Tre University, 00146 Roma, Italy

Energies, 2022, vol. 15, issue 6, 1-17

Abstract: In this paper, the analysis and the design of a high-efficiency power electronic conversion system for offshore wind applications are presented. This system is composed of a 6-phase AC–DC converter based on the SiC power semiconductors, to be used to control the achievable power from the wind turbine electrical generator. Thanks to the phase redundancy, the proposed boost rectifier is suitable for applications where reliability and fault tolerance capability are the main targets. To select the appropriate power semiconductor devices, voltage and current ratings have to be determined. After that, the power loss equations are derived in order to evaluate the conversion efficiency. To design the appropriate DC-bus capacitor configuration, an analytical investigation is carried out by estimating the DC-bus RMS current and the voltage ripple. Finally, the thermal sizing of the system is calculated to identify a suitable heatsink. To validate the proposed analysis, the analytical results are compared to simulation ones using the Plexim/PLECS tool in the MATLAB/Simulink environment. For further validation, a prototype of the converter is built and the experimental results are carried out. The results demonstrate that the peak efficiency of the 6-phase boost rectifier can reach 98% at 100 kHz switching frequency.

Keywords: AC–DC converter; multi-phase boost rectifier; SiC power semiconductors; offshore wind (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/6/2175/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/6/2175/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:6:p:2175-:d:772663

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().