双方向絶縁型DC-DCコンバータを用いたプリチャージ方法

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  • Pre-charge Method Using a Bi-directional Isolated DC-DC Converter
  • ソウホウコウ ゼツエンガタ DC-DC コンバータ オ モチイタ プリチャージ ホウホウ

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説明

<p>This paper proposes a capacitor pre-charge method using a bi-directional isolated DC-DC converter. This converter topology works as a phase-shifted full bridge DC-DC converter under forward direction of power conversion. In addition, this converter topology works as a current-fed converter under backward direction of power conversion and can operate in both the buck-mode and boost-mode. Then, a switching control method is presented for the voltage critical area of buck-boost. Appropriate input current control can be achieved by this switching control method in the voltage critical mode of buck-boost. Finally, the effectiveness of this pre-charge method is verified through an experiment on pre-charge using a 200V, 1000µF capacitor.</p>

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