Robustness analysis for observer based active damping of LCL filter at different resonant frequencies

Mahmoud A. Gaafar, Gamal M. Dousoky, Masahito Shoyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Active damping of grid-connected LCL filter resonance by means of an observer loop to estimate the capacitor current is a well-known method. However, with variation of the grid side inductance due to grid conditions, the system robustness has to be checked. This work discusses the effect of the observer design on the system robustness against grid side inductance variation. Different values of resonant frequency, lower and higher than a critical value of one-sixth of the sampling frequency, are considered to clarify the system robustness at different resonant frequencies. Simulation and experimental results are presented to confirm the system operation at specific values of grid side inductance and resonant frequency.

Original languageEnglish
Title of host publication2015 IEEE International Telecommunications Energy Conference, INTELEC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479965823
DOIs
Publication statusPublished - Sep 20 2016
Event2015 IEEE International Telecommunications Energy Conference, INTELEC 2015 - Osaka, Japan
Duration: Oct 18 2015Oct 22 2015

Publication series

NameINTELEC, International Telecommunications Energy Conference (Proceedings)
Volume2016-September
ISSN (Print)0275-0473

Other

Other2015 IEEE International Telecommunications Energy Conference, INTELEC 2015
CountryJapan
CityOsaka
Period10/18/1510/22/15

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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    Gaafar, M. A., Dousoky, G. M., & Shoyama, M. (2016). Robustness analysis for observer based active damping of LCL filter at different resonant frequencies. In 2015 IEEE International Telecommunications Energy Conference, INTELEC 2015 [7572390] (INTELEC, International Telecommunications Energy Conference (Proceedings); Vol. 2016-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTLEC.2015.7572390