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Distributed secondary control of islanded microgrids using modified integral backstepping technique

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Abstract

This paper develops a nonlinear secondary voltage control scheme for a droop-controlled inverter-based islanded microgrid (MG). The proposed secondary voltage control is a distributed scheme that enjoys a simple communication network. The applied modified integral backstepping (MIB) controllers restore the voltage of each distribution generation (DG) to their reference values. An integral term is included in the conventional backstepping method to improve its dynamic performance in tracking a reference signal when voltage deviations and load disturbances exist. The control input law’s design and the closed-loop system’s stability are realized by the Lyapunov criterion in a step-by-step procedure. The proposed secondary voltage control’s effectiveness for a prototype microgrid system is verified by simulating it on MATLAB and comparing the results with conventional backstepping and sliding mode control (SMC). A considerable improvement in the transient response of the MG system and computation time of the input generation is accomplished by applying the proposed MIB technique.

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Authors and Affiliations

  1. Department of Electrical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

    Seyedeh Zahra Paylakhi, Naser Pariz, Mohammad Hossein Javidi Dasht Bayaz & Mohammad Bagher Naghibi Sistani

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  1. Seyedeh Zahra Paylakhi
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  2. Naser Pariz
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  3. Mohammad Hossein Javidi Dasht Bayaz
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  4. Mohammad Bagher Naghibi Sistani
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Contributions

Seyedeh Zahra Paylakhi: Conceptualization, Methodology, Software, Validation, Formal analysis, Investigation, Resources, Writing – original draft preparation. Naser Pariz: Writing – review and editing, Visualization, Supervision. Mohammad Hossein Javidi Dasht Bayaz: Visualization, Supervision. Mohammad Bagher Naghibi Sistani: Supervision.

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Correspondence to Naser Pariz.

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I declare that there is no conflict of interest in the publication of this article, and that there is no conflict of interest with any other author or institution for the publication of this article.

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I hereby declare that this manuscript is the result of my independent creation under the reviewers’ comments. Except for the quoted contents, this manuscript does not contain any research achievements that have been published or written by other individuals or groups. I, Naser Pariz, am the corresponding author of this manuscript. The legal responsibility of this statement shall be borne by me.

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Paylakhi, S.Z., Pariz, N., Bayaz, M.H.J.D. et al. Distributed secondary control of islanded microgrids using modified integral backstepping technique. Int. J. Dynam. Control 10, 2011–2019 (2022). https://doi.org/10.1007/s40435-022-00917-5

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  • DOI: https://doi.org/10.1007/s40435-022-00917-5

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