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研究生:邱奕超
研究生(外文):Yi-Chau Chiou
論文名稱:數位控制單相功率因數修正轉換器之研製
論文名稱(外文):Design and Implementation of a Digital Control Single-Phase Power Factor Correction Converter
指導教授:華志強華志強引用關係
學位類別:碩士
校院名稱:國立雲林科技大學
系所名稱:電機工程系碩士班
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:2009
畢業學年度:97
語文別:中文
論文頁數:110
中文關鍵詞:功率因數修正平均電流控制
外文關鍵詞:power factor correctionaverage current control
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本論文以單晶片數位信號處理器為基礎研製一組全數位單相功率因數修正電力轉換系統。本文所研製的單相功率因數修正器具有高功率因數、輸出穩壓、寬廣的輸入電壓等功能。控制架構採用雙迴路控制方式,包括電流內迴路與電壓外迴路。在電流迴路方面,以平均電流控制方法來實現功率因數修正。在電壓迴路方面,以比例積分控制器來達到直流輸出穩壓的功能。由於在相同的輸入電壓下,全橋式換流器的輸出電壓為半橋式的兩倍,以及在相同功率條件之下,全橋式開關容量及輸出電流為半橋式的一半,故本文採用全橋式換流器,切換方式使用正弦脈波寬度調變技術以達到交流電壓源輸出的功能。最後實際製作一額定負載 1kW 之電力轉換系統,以驗證本論文之理論及方法。
This paper presents the design and implementation of a digital controlled single-phase power factor correction(PFC) converter based on a digital signal processor(DSP). The proposed PFC controller consists of an inner current-loop controller and an outer voltage-loop controller .The current-loop controller adopts average current control method to achieve power factor correction. The voltage-loop controller employs a PI controller to achieve output voltage regulation. This adopts TMS320F240 digital signal processor as the controller to achieve high power factor, output voltage regulation and wide-range input voltage.The output voltage of full-bridge inverter is twice than the half-bridge inverter, the switch capacity and output current of full-bridge are half of the half-bridge inverter under the same input voltage and output power. Finally, experimental test has been carried out on a 1kW PFC converter using DSP controller and experimental results show feasibility and superiority of the proposed digital power factor correction system.
中文摘要 ------------------------------------------------------------------------------------- i
英文摘要 ------------------------------------------------------------------------------------- ii
誌謝 ------------------------------------------------------------------------------------- iv
目錄 ------------------------------------------------------------------------------------- v
表目錄 ------------------------------------------------------------------------------------- vii
圖目錄 -------------------------------------------------------------------------------- viii


第一章、 緒論------------------------------------------------------------------------------- 1
1.1 研究動機與目的--------------------------------------------------------------- 1
1.2 內容大綱------------------------------------------------------------------------- 7

第二章、 功率因數修正技術簡介----------------------------------------------------- 4
2.1 功率因素------------------------------------------------------------------------- 10
2.2 主動式功率因數修正電路控制----------------------------------------- 13
2.2.1乘法器控制法-------------------------------------------------------- 13
2.2.1.1峰值電流控制------------------------------------------------ 14
2.2.1.2磁滯電流控制------------------------------------------------ 14
2.2.1.3平均電流控制------------------------------------------------ 14
2.2.2電壓隨耦控制法----------------------------------------------------- 15
2.3 電力流向控制與尖端失真----------------------------------------------- 20
2.3.1電力流向控制-------------------------------------------------------- 20
2.3.2尖端失真-------------------------------------------------------------- 23

第三章、 系統電路原理分析------------------------------------------------------------ 27
3.1 系統架構------------------------------------------------------------------------- 27
3.2 DC/DC轉換器簡介----------------------------------------------------------- 28
3.3 升壓式轉換器-------------------------------------------------------------- 30
3.3.1升壓式轉換器連續導通模式之穩態分析----------------------- 30
3.3.2升壓式轉換器CCM/DCM之邊界條件-------------------------- 36
3.3.3升壓式轉換器不連續導通模式之穩態分析-------------------- 38
3.4 單相換流器----------------------------------------------------------------- 43
3.4.1正弦脈波寬度調變原理-------------------------------------------- 43
3.4.2雙極性電壓切換----------------------------------------------------- 45
3.4.3單極性電壓切換----------------------------------------------------- 45
3.4.4換流器之濾波電路設計-------------------------------------------- 52
3.5 系統周邊硬體電路設計-------------------------------------------------- 53
3.5.1電壓感測電路-------------------------------------------------------- 53
3.5.2電流感測電路-------------------------------------------------------- 53
3.5.3PWM信號放大電路------------------------------------------------- 55
3.5.4緩衝電路-------------------------------------------------------------- 55
3.5.5交流電壓感測電路-------------------------------------------------- 55
3.5.6交流電流感測電路-------------------------------------------------- 56

第四章、 電路系統程式設計-------------------------------------------------------- 58
4.1 系統控制流程-------------------------------------------------------------- 58
4.1.1升壓轉換器控制----------------------------------------------------- 59
4.1.2單相換流器控制----------------------------------------------------- 61
4.2 程式流程-------------------------------------------------------------------- 63

第五章、 實驗結果與討論--------------------------------------------------------------- 65
5.1 系統規格-------------------------------------------------------------------- 65
5.2 升壓型轉換器測試-------------------------------------------------------- 67
5.3 全橋換流器測試----------------------------------------------------------- 77
5.4 升壓型轉換器與全橋換流器串級測試-------------------------------- 81

第六章、 結論與未來研究方向----------------------------------------------------- 89
6.1 結論-------------------------------------------------------------------------- 89
6.2 未來研究方向-------------------------------------------------------------- 90

參考文獻 ------------------------------------------------------------------------------------- 91
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