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

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

Freier Zugriff

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

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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Dokumentinformationen

Titel :

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

Beteiligte:

Vafamand, Navid (Autor:in) / Khooban, Mohammad Hassan (Autor:in) / Dragicevic, Tomislav (Autor:in) / Blaabjerg, Frede (Autor:in) / Boudjadar, Jalil (Autor:in)

Erscheinungsdatum :

2019-11-01

Anmerkungen:

Vafamand , N , Khooban , M H , Dragicevic , T , Blaabjerg , F & Boudjadar , J 2019 , ' Robust non-fragile Fuzzy Control of uncertain DC Microgrids Feeding Constant Power Loads ' , IEEE Transactions on Power Electronics , vol. 34 , no. 11 , 8631189 , pp. 11300 - 11308 . https://doi.org/10.1109/TPEL.2019.2896019

DOI :

https://doi.org/10.1109/TPEL.2019.2896019

Medientyp :

Aufsatz (Zeitschrift)

Format :

Elektronische Ressource

Sprache :

Englisch

Schlagwörter :

Stability analysis , Uncertainty , Microgrids , Energy storage , Computational modeling , Nonlinear systems , Voltage control , DC microgrid , constant power load , Takagi-Sugeno (TS) fuzzy model , fuzzy controller , exponential stability , non-fragile controller