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Unbalance suppression method for the output voltage of three-phase four-wire energy-storage inverter based on weighting control
ID：18 View Protection：ATTENDEE Updated Time：2021-12-05 09:20:03 Hits：1209 Poster Presentation

Start Time：2021-12-17 14:40（Asia/Shanghai）

Duration：5min

Session：Z Poster Session » Z1Poster Session 1: Renewable energy system

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Abstract
 Since the three-phase four-wire energy storage inverter can operate with the single-phase load and can also compensate for unbalanced voltage in island mode, it is adopted widely. However, due to the existence of the neutral line, the way to solve imbalance problem is more complicated. For this reason, this paper proposes the unbalance weighting control (UWC), which can suppress the unbalanced voltage by weighting controlling the negative- and zero-sequence voltages at the point of common coupling (PCC). Compared with the existing anti-unbalance control strategies, the proposed method directly suppresses the unbalanced voltage, which is simpler and more effective. Finally, the effectiveness of the method is verified by simulation and experiment results.
Keywords
Energy storage inverter, voltage weighting control, unbalance suppression
Speaker
WenQing Nie
yanshan university

Submission Author
WenQing Nie yanshan university
Chunjiang Zhang yanshan university
Hongyang Qing yanshan university
Hao He yanshan university
Songlin Zeng yanshan university
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Important Date

  • Conference Date

    Jul 11

    2023

    to

    Aug 18

    2023

  • Nov 10 2021

    Draft paper submission deadline

  • Dec 10 2021

    Registration deadline

  • Dec 11 2021

    Contribution Submission Deadline

Sponsored By
IEEE IAS
Organized By
IEEE IAS Student Chapter of Southwest Jiaotong University (SWJTU)
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
IEEE PELS (Power Electronics Society) Student Chapter of HUST
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