Modeling and sensitivity analysis of consensus algorithm based distributed hierarchical control for dc microgrids

Lexuan Meng, Tomislav Dragicevic, Juan Carlos Vasquez, Josep M. Guerrero, Javier Roldan Perez

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

12 Citations (Scopus)
725 Downloads (Pure)

Abstract

Distributed control methods for microgrid systems become a popular topic in recent years. Distributed algorithms, such as consensus algorithms, can be applied for distributed information sharing. However, by using this kind of algorithms the stability analysis becomes a critical issue since the dynamics of electrical and communication systems interact with each other. Apart from that, the communication characteristics also affect the dynamics of the system. Due to discrete nature of information exchange in communication network, Laplace domain analysis is not accurate enough for this kind of dynamic study. The aim of this paper is to model the complete DC microgrid system in z-domain and perform sensitivity analysis for the complete system. A generalized modeling method is proposed and the system dynamics under different control parameters, communication topologies and communication speed are studied. The responses derived from the analytical model are verified by comparing them with Simulink/PLECS based simulation results.
Original languageEnglish
Title of host publicationProceedings of the 2015 IEEE Applied Power Electronics Conference and Exposition (APEC)
Number of pages8
PublisherIEEE Press
Publication dateMar 2015
Pages342 - 349
ISBN (Print)978-1-4799-6735-3
DOIs
Publication statusPublished - Mar 2015
Event30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015 - Charlotte, United States
Duration: 15 Mar 201519 Mar 2015

Conference

Conference30th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2015
Country/TerritoryUnited States
CityCharlotte
Period15/03/201519/03/2015
SeriesI E E E Applied Power Electronics Conference and Exposition. Conference Proceedings
ISSN1048-2334

Keywords

  • DC microgrids
  • Discrete-time modeling
  • Distributed hierarchical control
  • Consensus algorithm
  • DC/DC converters

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