Active Damping Techniques for LCL-Filtered Inverters-Based Microgrids

Iman Lorzadeh, Mehdi Savaghebi Firoozabadi, Hossein Askarian Abyaneh, Josep M. Guerrero

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

14 Citations (Scopus)
723 Downloads (Pure)

Abstract

LCL-type filters are widely used in gridconnected voltage source inverters, since it provides switching ripples reduction with lower cost and weight than the L-type counterpart. However, the inclusion of LCL-filters in voltage
source inverters complicates the current control design regarding system stability issues; because an inherent resonance peak appears due to zero impedance at that resonance frequency. Moreover, in grid-interactive low-voltage microgrids, the interactions among the LCL-filtered-based parallel inverters may result in a more complex multiresonance issue which may compromise the power quality and stability of the microgrid. Therefore, due to the effect of resonances on the system stability and power quality, this paper presents a state-of-the-art review of resonance characteristics and related issues in single- and multi-invertersystems. Furthermore, this paper introduces the different active damping approaches for grid-connected inverters with LCL filters, which are based on high-order filters and additional feedbacks methods. These techniques are analyzed and discussed in detail.
Original languageEnglish
Title of host publicationProceedings of the 2015 IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED)
Number of pages7
PublisherIEEE Press
Publication dateSep 2015
Pages408 - 414
DOIs
Publication statusPublished - Sep 2015
Event2015 IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED) - Guarda, Portugal
Duration: 1 Sep 20154 Sep 2015

Conference

Conference2015 IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED)
CountryPortugal
CityGuarda
Period01/09/201504/09/2015

Keywords

  • Active damping techniques
  • LCL-filter
  • Grid-interactive microgrid

Fingerprint Dive into the research topics of 'Active Damping Techniques for LCL-Filtered Inverters-Based Microgrids'. Together they form a unique fingerprint.

  • Cite this

    Lorzadeh, I., Firoozabadi, M. S., Askarian Abyaneh, H., & Guerrero, J. M. (2015). Active Damping Techniques for LCL-Filtered Inverters-Based Microgrids. In Proceedings of the 2015 IEEE 10th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED) (pp. 408 - 414 ). IEEE Press. https://doi.org/10.1109/DEMPED.2015.7303722