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Three-Level Space Vector Modulation Method for Common-Mode Voltage Suppression
编号：31 访问权限：仅限参会人 更新：2024-08-15 10:46:21 浏览：104次 口头报告

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摘要
The three-level Neutral-Point-Clamped (NPC) topology is widely used in the field of electric motor drive. However, common issues in three-level NPC inverter include neutral-point (NP) voltage balance and reduction of common-mode voltage (CMV). To overcome these problems, this paper proposes an improved modulation technique for suppressing the CMV and NP voltage unbalance. In vector substitution, some switching states with low CMV can be chosen to suppress CMV. In order to balance NP voltage, the NP unbalance voltages is adjusted by selecting the P-type or N-type small vector and adjusting the dwell times of vectors. Compared with conventional space vector pulse-width modulation (SVPWM), the proposed modulation technique can restrain both NP voltage deviation and CMV. In addition, the proposed modulation strategies analytical and calculated expression of NP current.
关键词
Three-level inverter、neutral-point (NP) voltage balance、common-mode voltage (CMV)
报告人
Yuhang Yao
Mr Yao Hubei Normal University

稿件作者
Yuhang Yao Hubei Normal University
Wu Zhou Hubei Normal University
Cheng Zhang Hubei Normal University
Xi Chen Hubei Normal University
Yuze Li Xiamen University of Technology
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重要日期

  • 会议日期

    11月06日

    2024

    至

    11月08日

    2024

  • 09月15日 2024

    初稿截稿日期

  • 11月08日 2024

    注册截止日期

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Huazhong University of Science and Technology
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