作者: Sangmin Lim , Jaeho Choi
DOI: 10.20508/IJRER.50149
关键词: Ripple 、 Electronic engineering 、 Control theory 、 Inverter 、 Attenuation 、 Inductance 、 Grid 、 Computer science 、 Grid-tie inverter 、 Inductor 、 Modulation 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.