Current error based compensations for VSC current control in weak grids for wind farm applications

Givaki, K. and Chen, D. and Xu, L. (2018) Current error based compensations for VSC current control in weak grids for wind farm applications. IEEE Transactions on Sustainable Energy. ISSN 1949-3037 (https://doi.org/10.1109/TSTE.2018.2820386)

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Abstract

A novel current control strategy is proposed for voltage source converter connecting to weak grid using conventional current vector control with additional current error based voltage angle and magnitude compensations. For connecting to very weak AC network, conventional vector control is proved to be unstable, whereas the proposed current error based compensations can significantly improve system stability. In this way, the proposed control can still benefit from the presence of current closed-loop control without the need for control switching during large AC voltage variations. Comprehensive frequency domain model is established to analyze stability performance. Comprehensive time domain simulations are further carried out to validate its effectiveness and robustness by demonstrating its current control performance during a three-phase fault, multiple-converter situation and various grid strength conditions.

ORCID iDs

Givaki, K. ORCID logoORCID: https://orcid.org/0000-0001-7234-3561, Chen, D. ORCID logoORCID: https://orcid.org/0000-0003-2567-7993 and Xu, L. ORCID logoORCID: https://orcid.org/0000-0001-5633-7866;
  • Item type:Article
    ID code:63572
    Dates:
    Date
    Event
    28 March 2018
    Published
    7 March 2018
    Accepted
    Notes:© 2018 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.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:03 Apr 2018 13:41
    Last modified:11 Nov 2024 11:57
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/63572
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