Optimized Controller Design for $LCL$ -Type Grid-Connected Inverter to Achieve High Robustness Against Grid-Impedance Variation

Pan, Donghua; Ruan, Xinbo; Bao, Chenlei; Li, Weiwei; Wang, Xuehua

doi:10.1109/tie.2014.2341584

Public

Optimized Controller Design for $LCL$ -Type Grid-Connected Inverter to Achieve High Robustness Against Grid-Impedance Variation

Published in IEEE Transactions on Industrial Electronics • Jul 22, 2014

Authors:

Donghua Pan

Xinbo Ruan

Chenlei Bao

Abstract

Capacitor-current-feedback active damping is an effective method to suppress the LCL-filter resonance in grid-connected inverters. However, due to the variation of grid impedance, the LCL-filter resonance frequency will vary in a wide range, which challenges the design of the capacitor-current-feedb...

Subject

Capacitor

Inverter

Control theory (sociology)

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