An Adaptive droop Curve for the Superimposed Frequency Method in DC Microgrids

Mohammad Jafari, Saeed Peyghami, Hossein Mokhtari, Frede Blaabjerg

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

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Abstract

This paper proposes a new adaptive droop curve to ensure the stability of the superimposed frequency method (SFM) for the control of DC Microgrids. SFM has a remarkable accuracy in load-sharing and voltage regulations among different control strategies of DC microgrids. However, this method suffers from some levels of instability in terms of the load variations. This is due to (i) location of the system dominant poles; which is really sensitive to the variations of the system loading, and (ii) limitations in the transferred reactive power; which is used to regulate source DC voltages. Therefore, a new strategy based on an adaptive droop curve is presented in this paper to keep the system dominant poles in an acceptable area and its performance is verified using different simulation studies in MATLAB/SIMULINK environment.
Original languageEnglish
Title of host publicationProceedings of the 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL)
Number of pages6
PublisherIEEE
Publication date2020
Pages1-6
ISBN (Print)978-1-7281-7161-6
ISBN (Electronic)978-1-7281-7160-9
DOIs
Publication statusPublished - 2020
Event21th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 - Aalborg, Denmark
Duration: 9 Nov 202012 Nov 2020

Conference

Conference21th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020
CountryDenmark
CityAalborg
Period09/11/202012/11/2020
SeriesIEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN1093-5142

Keywords

  • DC Microgrid
  • dc power system
  • Droop Control

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