LCL filter design and experimental response analysis for a SiC inverter

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Authors: S. Martín-Arroyo, A. Llamazares, Jorge Herrero Ciudad, S.L. Zaragoza. Spain For Optimal Renewable Energy Systems, M. García-Gracia
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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. Key words. LCL filter, SiC inverter, harmonic contents, transfer function.

Fields of Study & Subjects

Electromagnetic Compatibility and Noise Suppression Power Quality and Harmonics Multilevel Inverters and Converters

Publication details

Journal / source
Renewable Energies Environment and Power Quality Journal
Volume
24
Issue
4
Pages
408–412
Publication date
1 January 2026