Fuzzy-barrier sliding mode control of electric-hydrogen hybrid energy storage system in DC microgrid: Modelling, management and experimental investigation

Syeda Shafia Zehra, Aqeel Ur Rahman and Iftikhar Ahmad

Energy, 2022, vol. 239, issue PD

Abstract: In this study, a novel model and nonlinear barrier function-based first order sliding mode control (NBF-FOSMC) of a hybrid hydrogen-electric energy storage system in DC microgrid has been presented. The photo-voltaic array works at its maximum power point while the fuel cell consumes hydrogen produced by the electrolyzer along with the battery and superconducting magnetic energy storage to provide fast and uninterruptible power. Fuzzy logic based power management system has been adopted for the optimal load-generation balance. Moreover, the work has been divided into two levels in which the power references generated from master level control are fed to the slave level control. NBF-FOSMC has been implemented as an underlying controller which shows insensitivity to the disturbances bounded with an unknown upper bound and prevents the system from overestimation of the gains. Global asymptotic stability of the controller has been verified using Lyapunov stability analysis. The proposed controllers have been simulated using MATLAB/Simulink® (2019a) which illustrates the tracking of desired powers and DC bus voltage regulation with minimal tracking errors. Lastly, a comparison between NBF-FOSMC and Lyapunov redesign control has been presented along with controller hardware-in-the loop experiments to validate the real-time implementation of the designed framework.

Keywords: Hydrogen-electric energy storage system; Superconducting magnetic energy storage (SMES); Nonlinear barrier function; Sliding mode controller; Gains estimation; Fuzzy rule-based energy management (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:239:y:2022:i:pd:s0360544221025081

DOI: 10.1016/j.energy.2021.122260

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