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  • 學位論文

KY轉換器拓樸之研究

Research on KY Converter Topology

指導教授 : 胡國英

摘要


本論文首先提出一升壓轉換器架構,名為KY轉換器,此架構係結合切換式電荷泵的行為以及傳統降壓轉換器的行為來實現快速的負載響應,並同時具有低輸出電壓漣波的效果。除此之外,將柔性切換技術整合至所提之升壓轉換器,以獲得更高的電力轉換效率,並同時降低輸入湧浪電流。 另一方面,由於KY轉換器只能升壓,因此於本論文提出兩種降壓/升壓轉換器架構,名為KY升壓/降壓轉換器,以期能某種程度上來提升KY轉換器於工業上之應用能力。 更重要的是,由於KY轉換器之理想上的最高輸出電壓為兩倍的輸入電壓,因此於本論文提出幾種有/無耦合電感之衍生KY轉換器來達到高升壓轉換比,以提升所衍生之KY轉換器於不同工業場合之應用能力,例如:燒機測試、綠能、微網等。 最後,於本論文中,將詳細敘述每一個所提架構之基本操作原理及理論推導,並且搭配模擬與實作結果來驗證每一個所提架構之可行性及有效性。

並列摘要


In this dissertation, a boost converter, named KY converter, is first presented, which based on the combination of the charge pump behavior and traditional buck converter behavior, so as to provide not only the function of the fast load transient response but also the feature of the low output ripple current. Furthermore, the KY converter with the soft switching technique included suppresses the inrush current at startup as well as improves the power conversion efficiency. On the other hand, since the KY converter is only a voltage-boosting converter, two types of voltage-bucking/boosting converters, named KY step-up/down converters, are proposed herein so as to improve the capability of the KY converter in industrial applications to some extent. Above all, since the KY converter has an ideal voltage conversion ratio up to two only, several converters with high voltage conversion ratios, derived from the KY converter along with/without the coupling inductor, are presented herein so as to upgrade the capability of the KY converter in different industrial applications, such as burn-in test, green power, micro grid, etc. Finally, a detailed description of the basic operating principles and mathematical deductions of the KY converter and its derivatives along with some simulated and experimental results is to be given in the following, so as to demonstrate the effectiveness and feasibility of the proposed converter topologies.

參考文獻


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