Novel Active Damping Design Based on a Biquad Filter for an LLCL Grid-Tied Inverter

Novel Active Damping Design Based on a Biquad Filter for an LLCL Grid-Tied Inverter

LLCL filters for grid-tied inverters have been adopted to get better performance for the harmonics near the switching frequency than commonly used LCL filters. However, the resonant peak caused by a pair of unstable resonance poles of the LLCL filters is introduced and makes the system become unstab...

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Bibliographic Details
Main Authors: Bin Wang, Qiangsong Zhao, Gong Zhang, Hongwei Zhang, Kaiyue Liu, Xuebin Yue
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Energies
Subjects:
LLCL filter
grid-tied inverter
biquad filter
weak grids
Online Access:https://www.mdpi.com/1996-1073/16/3/1093

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