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Control Strategy of Three-port DC Converter based on Energy Balance
编号：533 访问权限：仅限参会人 更新：2022-05-22 09:47:53 浏览：170次 张贴报告

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摘要
With the widespread access of new energy sources, the degree of power electronics in the power system has been greatly improved. As an important part of the power electronic power system, the DC transformer is the key equipment for connecting the medium and low voltage DC bus. In the case of ensuring the withstand voltage of the device, how to realize the stable transmission of power is a hot research topic at present. The modular three-port DC converter combines modular multi-level converter (MMC) with input-series output-parallel (ISOP), which not only solves the problem of device voltage stress, but also realizes multi-port energy interaction and improves power density. Based on this modular three-port DC converter, a comprehensive control strategy based on energy balance is proposed in this paper. The characteristic of this control strategy is that it not only stabilize the voltage on the low-voltage side, but also suppress the fluctuation of the capacitor voltage of the sub-module on the medium-voltage side. The simulation results show that the control strategy has good dynamic response ability and anti-disturbance ability.
 
关键词
MMC; ISOP; Three-port DC converter; DCT; Energy Balance Control
报告人
Yongtao Liang
华中科技大学

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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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