升壓轉換器拓樸之研究

Research on Step-Up Converter Topology

江文莊(Wen-Zhuang Jiang)

指導教授 ： 胡國英

國立臺北科技大學/電資學院/電機工程系研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00042

摘要

於本論文中，首先提出一改良型升壓型轉換器，此轉換器係結合一KY轉換器、一升降壓型轉換器及一耦合電感。相較於一結合KY轉換器與升降壓轉換器之高升壓型轉換器，本論文所提出的轉換器之電壓增益較此轉換器之電壓增益高。所提之轉換器保留了KY轉換器之具有輸出電感的優點。然而，有鑑於本論文所提出的第一個升壓型轉換器之電壓增益不夠高，在不增加元件數之情況下，本論文提出第二改良型轉換器，此轉換器相較於第一改良型轉換器具有較高的電壓增益。由於前兩個轉換器均為非隔離型，故本論文另外提出一隔離型轉換器，此隔離型轉換器所使用的元件數目和前面兩個非隔離型轉換器相同，同時也具有一輸出電感，使得輸出電流漣波小於傳統反馳式轉換器，且電壓轉換比也高於傳統反馳式轉換器。最後，本論文藉由數學推導和轉換器元件設計、控制器設計及實驗結果來驗證所提的轉換器之可行性和有效性。

關鍵字

電荷幫浦 ； 耦合電感 ； KY轉換器 ； 升壓轉換器 ； 電壓增益

並列摘要

In this thesis, a novel step-up converter is firstly proposed, i.e., the proposed type-1 non-isolated step-up converter, which combines one charge pump and one coupled inductor with the turns ratio. The corresponding voltage gain is greater than that of the existing step-up converter combing KY and buck-boost converters. Since the proposed converter possesses an output inductor, the output current is non-pulsating. However, the voltage gain of the firstly presented step-up converter is not high enough, so another step-up converter is delivered. This converter is modified from the firstly proposed converter, which has the same components, but a higher voltage gain. Considering the previous converters are all non-isolated, one isolated converter is engineered. This isolated converter possesses the same components as the proposed non-isolated converters. The benefit of these three proposed converters is that there is an output inductor in each proposed converter, so the output voltage ripple of each converter is smaller than that of the traditional boost converter. In addition, the proposed converters are simple and easily implemented. Finally, the detailed mathematical deductions, the design of the converter components and controllers, and some experimental results are provided to verify the feasibility and effectiveness.

並列關鍵字

Charge pump ； coupled inductor ； KY converter ； step-up converter ； voltage gain

參考文獻

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