Robust non-fragile Fuzzy Control of uncertain DC Microgrids Feeding Constant Power Loads

Navid Vafamand, Mohammad Hassan Khooban, Tomislav Dragicevic, Frede Blaabjerg, Jalil Boudjadar

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3 Citations (Scopus)
24 Downloads (Pure)

Abstract

This paper investigates the problem of dynamic stabilization of dc microgrids (MGs) through a robust non-fragile fuzzy control synthesis of power buffer. The suggested robust fuzzy controller is designed to quickly stabilize the MGs by circulating the power between the dc link and an energy storage system (ESS). By employing the exponential stability analysis and Takagi-Sugeno fuzzy modeling, sufficient controller design conditions are derived in terms of linear matrix inequalities, which bring about a simple, systematic, and effective controller. The proposed approach is resilient against the uncertainties of the dc MG and ESS parameters. To show the merits of the proposed approach, it is applied to a dc MG that feeds one constant power load. It is shown that the proposed approach is more robust against system and controller uncertainties compared to the existing results. Finally, experimental results are then presented that show the transient performance improvement of the closed-loop system compared to the state-of-the-art methods.

Original languageEnglish
Article number8631189
JournalIEEE Transactions on Power Electronics
Volume34
Issue number11
Pages (from-to)11300 - 11308
Number of pages9
ISSN0885-8993
DOIs
Publication statusPublished - Nov 2019

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Fuzzy control
Controllers
Energy storage
Asymptotic stability
Linear matrix inequalities
Closed loop systems
Stabilization
Uncertainty

Keywords

  • DC microgrid
  • Constant power load
  • Takagi-Sugeno (TS) fuzzy model
  • Fuzzy controller
  • Exponential stability
  • Non-fragile controller , uncertainty
  • fuzzy controller
  • dc microgrid
  • uncertainty
  • non-fragile controller
  • exponential stability

Cite this

Vafamand, Navid ; Khooban, Mohammad Hassan ; Dragicevic, Tomislav ; Blaabjerg, Frede ; Boudjadar, Jalil. / Robust non-fragile Fuzzy Control of uncertain DC Microgrids Feeding Constant Power Loads. In: IEEE Transactions on Power Electronics. 2019 ; Vol. 34, No. 11. pp. 11300 - 11308.
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abstract = "This paper investigates the problem of dynamic stabilization of dc microgrids (MGs) through a robust non-fragile fuzzy control synthesis of power buffer. The suggested robust fuzzy controller is designed to quickly stabilize the MGs by circulating the power between the dc link and an energy storage system (ESS). By employing the exponential stability analysis and Takagi-Sugeno fuzzy modeling, sufficient controller design conditions are derived in terms of linear matrix inequalities, which bring about a simple, systematic, and effective controller. The proposed approach is resilient against the uncertainties of the dc MG and ESS parameters. To show the merits of the proposed approach, it is applied to a dc MG that feeds one constant power load. It is shown that the proposed approach is more robust against system and controller uncertainties compared to the existing results. Finally, experimental results are then presented that show the transient performance improvement of the closed-loop system compared to the state-of-the-art methods.",
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Robust non-fragile Fuzzy Control of uncertain DC Microgrids Feeding Constant Power Loads. / Vafamand, Navid; Khooban, Mohammad Hassan; Dragicevic, Tomislav; Blaabjerg, Frede; Boudjadar, Jalil.

In: IEEE Transactions on Power Electronics, Vol. 34, No. 11, 8631189, 11.2019, p. 11300 - 11308.

Research output: Contribution to journalJournal articleResearchpeer-review

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