Analysis and damping of harmonic propagation in DG-penetrated distribution networks

Jinghang Lu, Mehdi Savaghebi, Josep M. Guerrero

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

With the increasing penetration of nonlinear loads into distribution system, stable operation of power distribution system suffers challenge by harmonic voltage propagation and resonance amplification which is also known as whack-a-mole phenomenon. However, until now this phenomenon has not been well investigated and discussed. This paper starts from theoretical analysis of harmonic propagation and how it is triggered when DG unit interfaced to the grid. Moreover, harmonic damping performance of various types of impedance seen from DG at selected frequencies are analyzed and compared by introducing microwave transmission line theory. In addition, this paper proposes a control algorithm with DG unit where virtual impedances at selected frequencies are individually designed to mitigate the harmonic amplification. The validity of the control strategy has been verified by the case study results.

Original languageEnglish
Title of host publicationECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings
PublisherIEEE
Publication date1. Jan 2016
Article number7854865
ISBN (Electronic)9781509007370
DOIs
Publication statusPublished - 1. Jan 2016
Externally publishedYes
Event2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016 - Milwaukee, United States
Duration: 18. Sep 201622. Sep 2016

Conference

Conference2016 IEEE Energy Conversion Congress and Exposition, ECCE 2016
CountryUnited States
CityMilwaukee
Period18/09/201622/09/2016
SponsorIEEE, IEEE Industry Applications Society, IEEE Power Electronics and Industry Applications Societies
SeriesECCE 2016 - IEEE Energy Conversion Congress and Exposition, Proceedings

Keywords

  • distributed generation
  • Power quality
  • resonance propagation
  • virtual impedance

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