交錯式LLC串聯諧振轉換器的研製

Design and Implementation of Interleaved LLC Series Resonant Converter

柯柏任(Po-Jen Ke)

指導教授 ： 賴炎生

國立臺北科技大學/電資學院/電機工程系研究所/碩士(2009年)

https://doi.org/10.6841/NTUT.2009.00216

摘要

本論文主要研製交錯式串聯諧振轉換器，它適用於大功率及大電流的電源供應器，如伺服器電源或個人電腦電源。由於LLC串聯諧振轉換器具有半弦波形式的輸出電流，不僅增加元件電流的額定，而且也增加了轉換器的傳導損耗。所以在設計LLC串聯諧振轉換器時，其輸出電流通常低於25A。 本文提出一種交錯式串聯諧振轉換器，此轉換器除了藉由輸出並聯以提高輸出功率外，同時還具有固定相角及相位交錯的特性，達到消除輸出電流漣波與提高負載電流的暫態響應速度。 本文研製一台480 W的交錯式串聯諧振轉換器，並經由理論計算及實驗結果證實，它具有下列優點：有效降低輸出漣波電壓及漣波電流、降低輸出電容上的損耗、減少輸出電容的總容量、降低設計成本及提升轉換器的效率。

關鍵字

LLC串聯諧振轉換器 ； 交錯式轉換器

並列摘要

The main theme of this thesis is to design and implement an interleaved LLC series resonant converter which is very promising for high power and current applications, e.g. power for server and personal computer. Since the output current of LLC converter is sinusoidal in each half cycle which results in the increase of both current rating of components and conduction losses of converter. Its output current is usually less than 25A.
This thesis presents an interleaved LLC series resonant converter. The presented interleaved LLC series resonant converter provides higher output power and has the characteristics of fixed phase angle and phase interleaved. Therefore, the output current ripple can be cancelled and transient response is improved.
The designed interleaved LLC series resonant converter is 480 W. It is confirmed by both theoretical analysis and experimental results that the implemented converter has several advantages, including reduction of output voltage and current ripples, output capacitor loss, output capacitance and design cost, and increase of converter efficiency.

並列關鍵字

LLC Series Resonant Converter ； Interleaved Converter

參考文獻

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