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  • An Enhanced Adaptive Filter for Orthogonal Signal Generation in a Single-phase DQ Current Controller

    Author(s)
    Taghizadeh, Seyedfoad
    Water, Wayne
    Hossain, MJ
    Rafi, Fida Hasan Md
    Lu, Junwei
    Griffith University Author(s)
    Taghizadeh, Foad
    Water, Wayne
    Lu, Junwei
    Hossain, Jahangir
    Year published
    2018
    Metadata
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    Abstract
    The development of a suitable and feasible direct- quadrature (DQ) transformation theory for a single-phase current controller has always been a challenge for designers, as an additional orthogonal signal generation (OSG) block is required to generate the orthogonal component of the grid current. Several methods have been investigated in the literature that mostly exhibit poor steady-state and dynamic performance. This paper proposes a new method, which uses an enhanced-adaptive-filter algorithm and can address the limitations of existing methods. The proposed technique operates without any delay and demonstrates improved ...
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    The development of a suitable and feasible direct- quadrature (DQ) transformation theory for a single-phase current controller has always been a challenge for designers, as an additional orthogonal signal generation (OSG) block is required to generate the orthogonal component of the grid current. Several methods have been investigated in the literature that mostly exhibit poor steady-state and dynamic performance. This paper proposes a new method, which uses an enhanced-adaptive-filter algorithm and can address the limitations of existing methods. The proposed technique operates without any delay and demonstrates improved steady- state and dynamic performance. It can reduce the harmonics of the input signal as it generates orthogonal component of the grid current. Its robustness, fast response and particularly its simplicity make the proposed algorithm well-suited to working as an OSG block in the control system of a power electronic appliance (e.g., static synchronous compensator, active power filter, and unified power flow controller). The performance of the proposed algorithm is verified in a single-phase grid- connected voltage-source converter application. Stability analysis, simulation and experimental results verify the efficacy, reliability and contribution of the proposed method.
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    Conference Title
    2018 IEEE 7TH INTERNATIONAL CONFERENCE ON POWER AND ENERGY (PECON)
    DOI
    https://doi.org/10.1109/PECON.2018.8684050
    Subject
    Electrical engineering
    Electronics, sensors and digital hardware
    Science & Technology
    Technology
    Green & Sustainable Science & Technology
    Energy & Fuels
    Publication URI
    http://hdl.handle.net/10072/386969
    Collection
    • Conference outputs

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