Stability analysis of synchronization of parallel power converters

Roberto Rosso, Giampaolo Buticchi, Marco Liserre, Zhixiang Zou, Soenke Engelken

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

16 Citations (Scopus)

Abstract

Interactions between power electronic converters are typically investigated by means of impedance-based model analysis. The effects of the PLL are usually neglected, but recent studies have shown the importance of including those effects for stability analysis purposes. This paper focuses on the investigation of interactions between synchronization units of converters operating in parallel. The impedance-based approach is used for the investigation in the frequency-domain. The converters are supposed to share the same point of common coupling (PCC) and the characteristic of the grid at the connection point is crucial for determining the effects of the interactions between the operating units. In order to isolate the effects of the synchronization, the converters is modeled as a current sources, whose reference currents are calculated using the angle detected by their PLLs. Time-domain simulations are performed as well as experimental laboratory tests in order to validate the presented analysis.

Original languageEnglish
Title of host publicationProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages440-445
Number of pages6
ISBN (Electronic)9781538611272
DOIs
Publication statusPublished - 15 Dec 2017
Externally publishedYes
Event43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 - Beijing, China
Duration: 29 Oct 20171 Nov 2017

Publication series

NameProceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
Volume2017-January

Conference

Conference43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Country/TerritoryChina
CityBeijing
Period29/10/171/11/17

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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