A Two State Feedback Active Damping Strategy for the LCL Filter Resonance in Grid-Connected Converters

Mahmoud A. Gaafar; Emad M. Ahmed; Masahito Shoyama

A Two State Feedback Active Damping Strategy for the LCL Filter Resonance in Grid-Connected Converters

Mahmoud A. Gaafar

Emad M. Ahmed

Masahito Shoyama

Vol. 16, No. 4, pp. 1587-1597, Jul. 2016

10.6113/JPE.2016.16.4.1587

PDF

Abstract

A novel active damping strategy for the LCL filter resonance is proposed using the grid current and the capacitor voltage. The proposed technique is deduced in the continuous time domain and a discussion for its discrete implementation is presented. According to the proposed technique, instability of the open loop system, which results in non-minimum phase behavior, can be avoided over wide range of resonant frequencies. Moreover, straightforward co-design steps for both the fundamental current regulator and the active damping loops can be used. A numerical example along with experimental results are introduced to validate the proposed strategy performance over wide range of resonant frequencies.

Statistics

Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.

Cite this article

[IEEE Style]

M. A. Gaafar, E. M. Ahmed, M. Shoyama, "A Two State Feedback Active Damping Strategy for the LCL Filter Resonance in Grid-Connected Converters," Journal of Power Electronics, vol. 16, no. 4, pp. 1587-1597, 2016. DOI: 10.6113/JPE.2016.16.4.1587.

[ACM Style]

Mahmoud A. Gaafar, Emad M. Ahmed, and Masahito Shoyama. 2016. A Two State Feedback Active Damping Strategy for the LCL Filter Resonance in Grid-Connected Converters. Journal of Power Electronics, 16, 4, (2016), 1587-1597. DOI: 10.6113/JPE.2016.16.4.1587.