Skip to main navigation Skip to search Skip to main content

Robustness analysis of voltage control strategies of smart transformer

  • Federico Cecati
  • , Markus Andresen
  • , Rongwu Zhu
  • , Zhixiang Zou
  • , Marco Liserre
  • Kiel University

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

Abstract

The increasing penetration of Distributed Generators (DG) in the modern electric distribution network poses high priority on the problem of the stability. In this article the Harmonic Stability of a Smart Transformer-fed microgrid is investigated under different control strategies. The considered microgrid is composed by a Smart Transformer and three Distributed Generators, considering the bandwidth of the DGs unknown. The robustness is evaluated analysing the eigenvalues as a consequence of a variation of the DGs bandwidth. The system is modelled as a Multi Input Multi Output System (MIMO); the eigenvalue based analysis is carried out to assess the stability and compare the robustness of the traditional double-loop PI and a state-feedback (SF) integral controller. The results show that the SF controller ensures a higher robustness than the traditional PI controller with respect to increasing bandwidths of the DGs.

Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5566-5573
Number of pages8
ISBN (Electronic)9781509066841
DOIs
StatePublished - 26 Dec 2018
Externally publishedYes
Event44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018 - Washington, United States
Duration: 20 Oct 201823 Oct 2018

Publication series

NameProceedings: IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society

Conference

Conference44th Annual Conference of the IEEE Industrial Electronics Society, IECON 2018
Country/TerritoryUnited States
CityWashington
Period20/10/1823/10/18

Keywords

  • Robustness
  • Smart Transformer
  • State Space Control

Fingerprint

Dive into the research topics of 'Robustness analysis of voltage control strategies of smart transformer'. Together they form a unique fingerprint.

Cite this