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研究生:王振宇
研究生(外文):Jhen-Yu Wang
論文名稱:無橋功率因數修正器之切換控制
論文名稱(外文):Switching Control of Bridgeless Power Factor Corrector
指導教授:賴炎生
口試委員:歐勝源潘晴財
口試日期:2016-07-16
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:電機工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
畢業學年度:104
語文別:中文
中文關鍵詞:切換控制法無橋功率因數修正器功率因數修正器
外文關鍵詞:Switching control methodBridgeless power factor correctorPower factor corrector
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本論文主要研製一數位信號處理器控制的無橋功率因數修正器,本架構採用平均電流控制法,其主要目的在於提升修正器整體效率,本文提出新型開關切換控制方式以減少開關上的導通損失和切換損失,進而提升轉換器整體效率,可應用在大功率以及開關元件導通電阻較大的場合。
本文利用德州儀器公司所生產的數位信號處理器TMS320F28035為控制核心,為驗證本論文之無橋功率因數修正器之切換控制,本文所研製之轉換器的規格為輸入交流電壓110V、輸出直流電壓400V、總額定功率1200W且切換頻率為65kHz。滿載時之轉換器效率可達94.16%,且功率因數趨近於1,由以上結果驗證設計與實驗的正確性。
The main theme of this thesis is to design and implement a bridgeless PFC converter controlled by a digital signal processor. The average current control method is used for bridgeless PFC control. The main purpose is to improve the overall efficiency of bridgeless PFC converter. A new switching control method is proposed to reduce the switching loss and conduction loss, and thereby improving the efficiency. The proposed switching control method is suitable for high power bridgeless PFC which uses power devices with larger turn-on resistance.
The digital signal processor, TMS320F28035, is used for the control core to verify the design and implementation. The specifications include 110V input AC voltage, 400V DC output voltage, 1200W total power rating and 65kHz switching frequency. The converter efficiency is up to 94.16% and almost unity power factor can be achieved under full load condition. These results confirm the design and implementation.
中文摘要 i
英文摘要 ii
誌謝 iv
目錄 v
表目錄 viii
圖目錄 ix
第一章 緒論 1
1.1 研究背景與動機 1
1.2 文獻回顧 2
1.3 研究目的 6
1.4 本文綱要 7
第二章 無橋功率因數修正器之架構與分析 8
2.1 功率因數的定義 8
2.2 無橋功率因數修正器之架構 11
第三章 無橋功率因數修正器之原理與轉移函數 16
3.1 無橋功率因數修正器之動作原理 16
3.2 無橋功率因數修正器之轉移函數推導 21
3.3 無橋功率因數修正器之切換控制與損失分析 27
第四章 系統研製與電路模擬 33
4.1 元件設計 33
4.1.1 輸入電感 34
4.1.2 輸出電容 36
4.1.3 主開關 37
4.1.4 二極體 38
4.2 硬體電路設計 39
4.2.1 輸入電壓回授電路 39
4.2.2 輸入電流回授電路 40
4.2.3 零電壓交越偵測電路 41
4.3 數位控制器設計 42
4.4 程式流程規劃 48
4.5 電路模擬 50
第五章 實驗結果 56
5.1 實驗平台 56
5.2 傳統同步開關切換方法實測 57
5.3 非同步開關控制方法之相應實驗波形 61
5.3.1 非同步開關訊號(主電流由開關導通電阻Ron流回) 61
5.3.2 非同步開關訊號(主電流由開關背接二極體Db流回) 64
5.4 本文提出之切換控制實測 68
5.5 暫態響應 72
5.6 效率與功率因數實驗數據 75
第六章 結論與未來研究方向 79
6.1 結論 79
6.2 未來研究方向 79
參考文獻 80
附錄 84
符號彙編 85
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