LCL filter design and experimental response analysis for a SiC inverter

Authors

  • S. Martín-Arroyo Department of Electrical Engineering EINA, Zaragoza University María de Luna 3 – Edificio Torres Quevedo – Campus Río Ebro – 50018 Zaragoza (Spain) Author
  • A. Llamazares Department of Electrical Engineering EINA, Zaragoza University María de Luna 3 – Edificio Torres Quevedo – Campus Río Ebro – 50018 Zaragoza (Spain) Author
  • J. Herrero Ciudad For Optimal Renewable Energy Systems, S.L. Celsa 17 – Polígono PLA-ZA, 50197 Zaragoza (Spain) Author
  • M. García-Gracia Department of Electrical Engineering EINA, Zaragoza University María de Luna 3 – Edificio Torres Quevedo – Campus Río Ebro – 50018 Zaragoza (Spain) Author

DOI:

https://doi.org/10.52152/

Keywords:

LCL filter, SiC inverter, harmonic contents

Abstract

In this paper, an LCL filter for a 20-kW SiC power inverter with a 25 kHz switching frequency is proposed and assessed. The transfer function without neglecting the network effect is considered. The optimal value of the damping resistor is evaluated to minimize losses while maintaining power quality and device stability. Finally, the harmonic content produced by the SiC inverter is experimentally measured to verify the effectiveness of the LCL filter.

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Published

2024-08-12

Issue

Vol. 22 No. 6 (2024)

Section

Articles