Impedance-based Stability Analysis of Cascaded Dual-Active-Bridge Converters in Smart Transformer Microgrids

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

Abstract

The recent advances in energy production and consumption have reshaped the electrical grid scenario. The trend is showing how power electronics converters are becoming increasingly important for the electrical energy transmission and distribution. In this framework, Smart Transformers (ST) can be adopted as interface between medium- and low-voltage grids, with the benefits of additional controllability and services. The dc-dc stage of ST provides the galvanic isolation and availability of DC links of MVDC and LVDC sides. This paper deals with the stability analysis of the cascaded connection case containing the dc-dc converter in ST and the one at the LVDC side, where the dual-active-bridge converters are selected as the dc-dc converters for investigation. The results of the impedance-based analysis show how the system stability can be challenged by the tuning of the voltage controllers.

Original languageEnglish
Title of host publication2022 AEIT International Annual Conference, AEIT 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788887237559
DOIs
Publication statusPublished - 2022
Event2022 AEIT International Annual Conference, AEIT 2022 - Rome, Italy
Duration: 3 Oct 20225 Oct 2022

Publication series

Name2022 AEIT International Annual Conference, AEIT 2022

Conference

Conference2022 AEIT International Annual Conference, AEIT 2022
Country/TerritoryItaly
CityRome
Period3/10/225/10/22

Keywords

  • cascaded systems
  • dc-dc converters
  • dual active bridge
  • impedance analysis

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

Fingerprint

Dive into the research topics of 'Impedance-based Stability Analysis of Cascaded Dual-Active-Bridge Converters in Smart Transformer Microgrids'. Together they form a unique fingerprint.

Cite this