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An Optimal Variable-Frequency Asymmetrical-Phase-Shift Strategy for Wireless Power Transfer System
编号：509 访问权限：仅限参会人 更新：2022-05-21 23:47:02 浏览：168次 张贴报告

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摘要
In wireless power transfer (WPT) systems, the transfer efficiency will be significantly affected by coils misalignment or power variation by traditional control strategy. In this paper, a variable-frequency asymmetrical-phase-shift (VFAPS) control strategy is proposed, which simultaneously controls the system frequency and phase shift angles to regulate the transmission power with maximum transmission efficiency regardless of coils misalignment or power variation. System frequency is controlled to compensate the reactive component of the secondary circuit. Asymmetrical-phase-shift can reduce reactive power loss and narrow the regulation range of system frequency on the basis of a wide range of ZVS. Finally, a mathematical model for solving the optimal control variables is established. Contrast experiments with the traditional triple-phase-shift (TPS) strategy on a 3.7kW WPT platform are constructed to verify the effectiveness of proposed strategy. The results demonstrate VFAPS strategy enables the system to operate at maximum efficiency and has great advantages in resisting coils misalignment and power variations.
关键词
wireless power transfer;transmission efficiency;coils misalignment;power variations;ZVS;variable-frequency asymmetrical-phase-shift
报告人
ChenHaowen
student School of Electrical and Electronic Engineering , Huazhong University of Science and Technology

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重要日期

  • 会议日期

    05月27日

    2022

    至

    05月29日

    2022

  • 02月28日 2022

    初稿截稿日期

  • 05月29日 2022

    注册截止日期

  • 06月22日 2022

    报告提交截止日期

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IEEE Beijing Section
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