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  • Proportional reactive power sharing for islanded microgrids

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    Hossain127029-Accepted.pdf (554.5Kb)
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    Accepted Manuscript (AM)
    Author(s)
    Azim, MI
    Hossain, MA
    Mohiuddin, SM
    Hossain, MJ
    Pota, HR
    Griffith University Author(s)
    Hossain, Md. Alamgir
    Year published
    2016
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    Abstract
    In this paper, droop-based automatic control schemes are presented to control parallel inverter-interfaced distributed generators (DG) in a way that proportional reactive power sharing is possible in islanded microgrids under different structures. This paper modifies the conventional reactive power-voltage (Q-V) droop control strategy used in inductive (L-type) islanded microgrids by implementing voltage control law in overall control operation such that reactive power becomes inversely proportional to the reactive droop gain if the initial values of inverter-interfaced voltage-sources are the same. Reactive power sharing ...
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    In this paper, droop-based automatic control schemes are presented to control parallel inverter-interfaced distributed generators (DG) in a way that proportional reactive power sharing is possible in islanded microgrids under different structures. This paper modifies the conventional reactive power-voltage (Q-V) droop control strategy used in inductive (L-type) islanded microgrids by implementing voltage control law in overall control operation such that reactive power becomes inversely proportional to the reactive droop gain if the initial values of inverter-interfaced voltage-sources are the same. Reactive power sharing approach for resistive (R-type) islanded microgrids is also included in this paper; in which it is shared depending on rate-of-angle of voltage-sources, i.e., reactive power-frequency (Q-f) droop. The proposed control methods utilize linear modal analysis to design both types of droop-based controllers. A 5-bus microgrid with 4-parallel inverter-connected DG units is considered for simulations under load changing phenomenon where results show the excellency of the designed control schemes.
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    Conference Title
    2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA)
    DOI
    https://doi.org/10.1109/ICIEA.2016.7603755
    Copyright Statement
    © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subject
    Electronics, sensors and digital hardware not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/338535
    Collection
    • Conference outputs

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