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研究生:李松茂
研究生(外文):Song-Mao Lee
論文名稱:DSP全數位控制三相交直流轉換器功率因數修正電路
論文名稱(外文):DSP-Based Fully Digital Control of Power Factor Correction Circuit for Three-Phase AC/DC Converter
指導教授:華志強華志強引用關係
指導教授(外文):Chih-Chiang Hua
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:2004
畢業學年度:92
語文別:中文
論文頁數:87
中文關鍵詞:功率因數修正升壓型轉換器
外文關鍵詞:boost converter.power-factor correction
相關次數:
  • 被引用被引用:1
  • 點閱點閱:212
  • 評分評分:
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
功率因數修正器(Power Factor Corrector, PFC)在電力品質控制上之角色已漸形重要,因此本文提出以數位單晶片全數位控制兩組單相功因修正模組所組成的三相功率因數修正系統。本文所使用的方法,是利用一自耦變壓器將三相電源轉換成兩組單相電源後,再供給後級兩組PFC模組來完成功率因數修正的目的。在三相功率因數系統的控制架構上,採用多迴路的結構,其中包含了電流內迴路與電壓外迴路以達到快速動態響應的目的。而在功率級電路的輸出端部分,使用數位取樣的技巧代替原有的低通濾波器來提供穩定的輸出電壓。最後,系統控制器的設計並以TMS320F240數位處理器予以實現,並以實測結果驗證電路的特性。
In view of the increasing importance of power factor corrector(PFC) for the issue of electric power quality, this thesis proposes a DSP-based fully digital-controlled three-phase power factor correction scheme using two independent single-phase PFC modules.In this approach, the three-phase power is transformed to two groups of single-phase power by means of an autotransformer. Two boost topologies are then employed for the improvement of power factor. The controller is based on a multi-loop structure for three-phase power factor corrector with an internal current control and an outer voltage control with fast dynamic response. Moreover, as the digital sampling technique rather than the low- pass filter was employed in the proposed method, the output voltage is better maintained. Finally, the design of system controller is performed by a digital signal processor TMS320F240 and the performance of the proposed system is verified by theoretical experimental results.
中文摘要-------------------------------------------------i
英文摘要-------------------------------------------------ii
誌謝-----------------------------------------------------iii
目錄-----------------------------------------------------iv
表目錄---------------------------------------------------vii
圖目錄---------------------------------------------------xi

第一章、緒論---------------------------------------------1
1.1 研究動機-----------------------------------------1
1.2 研究方法與系統描述-------------------------------3
1.3 論文大綱-----------------------------------------4

第二章、功率因數修正電路控制原理-------------------------5
2.1 功率因數的定義-----------------------------------5
2.2 主動式功率因數修正控制方法-----------------------8
2.2.1固定導通時間或固定截止時間控制法------------9
2.2.2磁滯曲線控制法------------------------------10
2.2.3正弦脈波調變電流控制法----------------------12
2.3 三相交直流轉換器模型分析-------------------------14
2.3.1三相自耦變壓器的設計------------------------14
2.3.2系統電路動作原理----------------------------15
2.3.3昇壓型轉換器連續導通模式--------------------17
2.3.4昇壓型轉換器CCM/DCM之邊界條件---------------18
2.3.5昇壓型轉換器輸出電壓漣波--------------------19
2.3.6電力流向控制--------------------------------20

第三章、數位控制器的分析與設計---------------------------24
3.1 系統硬體架構小信號分析---------------------------24
3.2 系統硬體架構的規格設計---------------------------29
3.2.1最小直流鏈電壓的推導------------------------30
3.2.2濾波電感值的設定----------------------------32
3.3 電壓控制器的設計考量-----------------------------33
3.3.1輸出電壓漣波分析----------------------------34
3.3.2電壓迴路系統描述----------------------------35
3.3.3電壓迴授補償器的設計------------------------37
3.3.4直流鏈電容值的設計--------------------------39
3.4 電流控制器的設計考量-----------------------------40
3.4.1電流迴路系統描述----------------------------40
3.4.2電流迴授模型的建立--------------------------40
3.4.3電流迴路控制器分析與設計--------------------42

第四章、數位控制器硬體架構及軟體規劃---------------------45
4.1 前言---------------------------------------------45
4.1.1DSP單晶片控制板-----------------------------45
4.1.2功率級電路架構------------------------------46
4.1.3輸入電流感測電路----------------------------46
4.1.4輸入電壓感測電路----------------------------48
4.1.5直流電壓感測電路----------------------------49
4.1.6過電流保護電路------------------------------50
4.2 功率級電路元件值的選取---------------------------50
4.2.1輸入電感值的決定----------------------------50
4.2.2輸出電容值的決定----------------------------51
4.3 系統軟體規劃-------------------------------------52

第五章、實驗結果與波形量測-------------------------------56
5.1 前言---------------------------------------------56
5.2 系統量測結果-------------------------------------57

第六章、結論---------------------------------------------66
6.1 結論---------------------------------------------66
6.2 未來研究方向與展望-------------------------------66

參考文獻-------------------------------------------------69

附錄A系統硬體照片----------------------------------------72
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