LCL filter Design for Grid Connected NPC Type Three-Level Inverter

作者: Sangmin Lim , Jaeho Choi

DOI: 10.20508/IJRER.50149

关键词: RippleElectronic engineeringControl theoryInverterAttenuationInductanceGridComputer scienceGrid-tie inverterInductorModulation index

摘要: This paper describes a LCL filter design method for grid connected NPC three-level inverter. By analyzing the ripple current according to switching of inverter, inverter side inductor is designed without any information about modulation index. After considering relation between inductance ratio and filtering effect at frequency, attenuation output ripple, inductor, optimized value meet criteria. Finally, proposed validated through simulation experimental results.

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