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研究生:陳常榮
研究生(外文):Chang-jung Chen
論文名稱:零電壓切換辦共振式降壓型轉換器
論文名稱(外文):Zero-Voltage-Switching Resonant-Switch Converters for Battery Chargers
指導教授:李榮乾李榮乾引用關係
指導教授(外文):Jung-Chien Li
學位類別:碩士
校院名稱:國立臺灣海洋大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:69
中文關鍵詞:充電器電池共振
外文關鍵詞:ChargerBatteryResonant
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本論文之主要目的在於研製兩種不同的共振開關式轉換器蓄電池充電器。先探討半共振式技術(QRC)的零電壓切換(ZVS)轉換器,利用這種轉換器的特性曲線圖設計出共振元件最佳的參數值,以這種架構作為蓄電池充電器,來對鉛酸蓄電池做充電測試,經實驗測得,零電壓切換半共振式降壓型轉換器之充電器的開關在零電壓的時候導通和截止。證明出這種的充電器可達到共振式切換,再將零電壓切換半共振式降壓型轉換器之充電器的脈波寬度調變轉換器之充電器做比較,確實可以降低開關的溫度,以減少開關上的切換損失。
最後,本論文以零電壓轉移(ZVT)柔性切換轉換器融合脈波寬度調變及共振技術,達到定頻控制,目的是為了解決傳統硬式切換轉換器的開關元件的損失,達成所有電路元件均為零電壓切換(ZVS)的要求,並使共振電容與共振電感峰值不超過在傳統脈波寬度調變轉換器中電壓及電流應力。故本論文最後採取零電壓轉移柔性切換技術的原理來做成一鉛酸蓄電池之充電器,經實驗測得,利用零電壓轉移柔切式降壓型轉換器之充電器與傳統的脈波寬度調變轉換器之充電器做比較,確實可以降低開關的溫度,以減少開關元件之切換損失及應力,提升元件的使用壽命以及提高整體之效率,進而延長鉛酸蓄電池的使用壽命。

The main purpose of this thesis is to research and develop two
different kinds of battery chargers of resonant-switch converters. Starting
with the zero voltage switch (ZVS) and the converters, which employ the quasi-resonant converter (QRC) technique,we gain the best parameters of the resonance components from the characteristic curve diagrams of these two converters. Then we design battery chargers based on these two structures and use them to experiment on lead-acid batteries. According to experiments, the battery charger with the zero voltage switch quasi-resonant converter (ZVS-QRC) is turned on and turned off at the point of zero voltage, while the one with the zero current switch quasi-resonant converter (ZCS-QRC) is turned on and off at the point of zero current. The result proves that both chargers reach the resonance-switched standard. Moreover, when compared with the charger with the traditional pulse-width-modulation (PWM) converter,the charger with ZVS or ZCS quasi-resonant converters indeed lowers the temperature of the switch, resulting in the reduction of switch losses.
Subsequently, in this thesis we combine the zero voltage transition
(ZVT) soft-switched buck converter with the pulse-width modulation and
the resonance technology to maintain constant operation frequency. It is
an effective way to reduce the switch loss of the traditional hard-switching converter, filling the requirement that all circuit
components are zero voltage switched ones. In the meanwhile, two
clamping diodes can be used to lengthen the resonance period, and prevent the peak value of resonance capacitance and resonance
inductance from exceeding the voltage stresses and current ones in the
traditional pulse-width-modulation converter. Therefore, we develop a
lead-acid battery charger on the basis of the zero voltage transition
soft-switched theory. According to the result of experiments,when
compared with the traditional pulse-width-modulation converter, the zero
voltage transition soft-switching buck converter can indeed lower the
temperature of the switch, reduce the switch losses and stresses,
lengthene the lives of components, improve the whole efficiency, and
further prolong the life of lead-acid battery

目 錄
頁數
摘要------------------------------------------------------------------------------ i
Abstract------------------------------------------------------------------------ iii
誌謝----------------------------------------------------------------------------- iv
目錄----------------------------------------------------------------------------- v
表目錄-------------------------------------------------------------------------- viii
圖目錄-------------------------------------------------------------------------- ix
符號說明----------------------------------------------------------------------- xii
第一章 緒論-------------------------------------------------------------------- 1
1-1 研究動機與背景---------------------------------------------------------- 1
1-2 章節摘要------------------------------------------------------------------ 12
第二章 鉛酸二次電池之探討----------------------------------------------- 13
2-1 簡介------------------------------------------------------------------------- 13
2-2 鉛酸蓄電池--------------------------------------------------------------- 16
2-2-1 鉛酸蓄電池的基本特性---------------------------------------------- 16
2-2-2 鉛酸蓄電池之工作原理---------------------------------------------- 17
2-2-3 鉛酸電池的開路電壓------------------------------------------------- 19
2-2-4 蓄電池等效電路模型------------------------------------------------- 19
2-3 充電方式------------------------------------------------------------------- 23
第三章 轉換器之共振切換技術-------------------------------------------- 26
3-1 簡介------------------------------------------------------------------------- 26
3-2 傳統脈波寬度調變硬式切換轉換器---------------------------------- 27
3-3 開關半共振式電路之簡介---------------------------------------------- 29
3-3-1 零電壓切換共振轉換器----------------------------------------------- 30
3-3-2零電壓轉移柔性切換技術換流器------------------------------------ 32
第四章 共振開關式轉換器蓄電池充電器-------------------------------- 34
4-1 零電壓切換半共振式降壓型轉換器之充電器操作原理---------- 34
第五章 充電器之設計與分析----------------------------------------------- 43
5-1 零電壓轉移柔切式降壓型轉換器之充電器電路元件設計------- 43
5-2 直流濾波元件設計------------------------------------------------------- 45
5-3 充電器驅動電路設計---------------------------------------------------- 49
5-4 充電器之電路模擬------------------------------------------------------- 50
5-4-1 零電壓轉移柔切式降壓型轉換器之充電器模擬----------------- 51
第六章 實驗結果-------------------------------------------------------------- 58
6-1 簡介------------------------------------------------------------------------- 58
6-2 充電器波形---------------------------------------------------------------- 58
6-2-1零電壓半共振式降壓型轉換器之充電器實驗--------------------- 58
6-2-2 零電壓轉移柔切式降壓型轉換器之充電器實驗----------------- 63
第七章 結論-------------------------------------------------------------------- 66
7-1 結論------------------------------------------------------------------------- 65
7-2 未來研究方向------------------------------------------------------------- 67
參考文獻------------------------------------------------------------------------- 68

參考文獻
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