Analysis and distributed control of power flow in DC microgrids to improve system efficiency

Fang Chen, Rolando Burgos, Dushan Boroyevich, Enrique Rodriguez Diaz, Lexuan Meng, Juan Carlos Vasquez Quintero, Josep M. Guerrero

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

10 Citations (Scopus)
503 Downloads (Pure)

Abstract

DC Microgrid attains popularity in integrating renewable energy sources and batteries. It also has the potential to achieve higher efficiency than ac power grid under the condition of optimized power flow. In this paper, a general dc microgrid is modeled based on a cluster of general dc nodes, which includes constant power renewables generation, droop-controlled voltage source and different kinds of load. Then the dc power flow is solved for optimization. A voltage restoration method based on consensus communication is used to restore the voltage deviation from droop characteristic. An enhanced current regulator is adopted to guarantee the accurate load sharing considering the impact from sensor error and line resistance. A tie line power flow control method is proposed to regulate the tie line power and increase the system efficiency at light load. All the considered methods only need the local information and the information from its nearest neighbor thus the system expendability is guaranteed. Simulation and experiment results are provided to validate the proposed methods.
Original languageEnglish
Title of host publicationProceedings of IEEE 2016 4th International Symposium on Environment Friendly Energies and Applications (EFEA)
Number of pages6
PublisherIEEE Press
Publication dateSept 2016
ISBN (Print)978-1-5090-0748-6
ISBN (Electronic)978-1-5090-0749-3
DOIs
Publication statusPublished - Sept 2016
EventIEEE 2016 4th International Symposium on Environment Friendly Energies and Applications (EFEA) - Belgrade, Serbia
Duration: 14 Sept 201616 Sept 2016
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=7732947

Conference

ConferenceIEEE 2016 4th International Symposium on Environment Friendly Energies and Applications (EFEA)
Country/TerritorySerbia
CityBelgrade
Period14/09/201616/09/2016
Internet address

Keywords

  • Dc microgrid
  • Efficiency
  • Power flow

Fingerprint

Dive into the research topics of 'Analysis and distributed control of power flow in DC microgrids to improve system efficiency'. Together they form a unique fingerprint.

Cite this