本論文研製一應用於直流電壓端與電池的雙向轉換器，主電路採用具有箝位電路之全橋相移雙向轉換器。全橋相移雙向轉換器利用變壓器的漏感及諧振電感與開關上之輸出電容達到電路諧振，使開關達到零電壓切換，提升電路整體效率。但是，電路中的雜散電感會造成共振現象，增加功率元件的電壓應力及電流應力。本研究在直流電壓端及變壓器間加入兩個二極體，並在電池端的電感及電容間加入諧振電容及二極體，以降低功率元件上的電壓應力及電流應力。最後，以數位訊號處理器 TMS320F28035作為控制核心，研製一輸入電壓為400 V、輸出電壓為 310-410 V，額定輸出功率為4 kW之雙向轉換器。充電階段最高轉換效率為97.8%。

In this thesis, a bidirectional DC-DC converter used for energy conversion between DC bus and battery is designed and implemented. The main circuit topology is a bidirectional phase-shift full-bridge (BPSFB) DC-DC converter with clamping circuits. The resonant tank is formed by transformer leakage inductor, resonant inductor and output capacitor of the switch to achieve zero-voltage switching (ZVS) for improving system efficiency. However, the power switches are suffered from high voltage stress and current stress due to the oscillation caused by the stray inductances. Two clamping diodes are added in DC bus side and a capacitor with two clamping diodes are added in battery side, to reduce the voltage and current stress on power switches. Finally, the digital signal processor (TMS320F28035) is used to realize the laboratory prototype with the DC bus voltage 400 V, battery voltage 310-410 V, and rated output power 4 kW. In the charging stage, the maximum conversion efficiency is 97.8%.

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