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研究生： 林亨錡
Lin, Heng-Ci
論文名稱： 具混合導通模式操作之數位功因修正升壓型轉換器研究與設計
Study and Design of Digital PFC Boost Converter with Mixed Conduction Mode Operation
指導教授： 蔡建泓
Tsai, Chien-Hung
學位類別： 碩士
Master
系所名稱： 電機資訊學院 - 電機工程學系
Department of Electrical Engineering
論文出版年： 2019
畢業學年度： 107
語文別： 中文
論文頁數： 88
中文關鍵詞： AC-DC轉換器 、升壓型轉換器 、功因修正 、混合導通模式操作 、數位控制
外文關鍵詞： AC-DC converter, Boost converter, Power factor correction, Mixed conduction mode, Digital Control
相關次數： 點閱：207  下載：2 
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    • 本論文研究題目為具混合導通模式操作之數位功因修正升壓型轉換器，詳細探討了操作於連續導通模式之平均電流控制功因修正轉換器的研究議題，並探討類比文獻實現做法，再從類比實現作法中帶入數位化研究現況，並說明數位與類比實現差異。本論文作品根據研究結果設計一數位式升壓型功因修正轉換器，使用平均電流控制並且具混合導通模式操作，在全範圍負載下皆可達到良好的功因修正效果，所實現之數位混合導通模式演算法能改善系統在不連續導通模式電流失真嚴重的問題，如此可降低輸入電流總諧波失真達到本論文研究目的，最後以FPGA系統完成控制驗證與系統量測。
    本論文作品貢獻為針對電流補償器於不連續導通模式下進行增益校正提出一種較為簡易的作法，可解決系統處在不連續導通模式下原先的電流補償器增益不足的現象。相比於目前數位文獻的實現方式，透過本作品所提出之增益調節機制可以降低數位硬體實現成本，並且不失補償效果，最後本作品電流總諧波失真在全範圍負載下皆小於10%，功因值皆大於0.9，符合國際規範標準。

    In this paper, the research topic is study and design of digital power factor correction (PFC) Boost Converter with mixed conduction mode (MCM) operation. According to the conclusion after the study, this paper designs a digital boost PFC converter, which uses average current control and has MCM operation. The digital MCM algorithm can improve the serious current distortion of the system in discontinuous conduction mode (DCM). This method can reduce the total harmonic distortion (THD) of the input current to achieve the research purpose of this paper. Finally, the control verification and system measurement are completed by the FPGA. This paper proposed a simple method to realize the gain compensation of the current compensator in DCM, which can solve the original current compensator gain is insufficient in the DCM. Compared with digital implementation of literature, the gain adjustment mechanism proposed in this work can reduce the cost of digital hardware implementation without compromising the compensation effect. Finally, the current THD of this work is less than 10% under the full range load. Power factor is greater than 0.9.

    摘要 I 致謝 V 目錄 VII 圖目錄 IX 表目錄 XIII 1 第一章 緒論 1 1.1 研究動機 1 1.2 目標與貢獻 3 1.3 論文結構編排 3 2 第二章 主動功因修正升壓型轉換器 4 2.1 主動功因修正 4 2.2 功因修正升壓型轉換器 6 2.2.1 操作模式 6 2.2.2 工作原理 9 2.2.3 功因修正控制法 12 2.2.4 前端及輔助電路 19 3 第三章 平均電流控制升壓型功因修正轉換器 22 3.1 平均電流控制原理與設計 22 3.1.1 類比平均電流控制 22 3.1.2 數位平均電流控制 25 3.2 議題及研究現況 30 3.2.1 輸入電流零交越點失真 30 3.2.2 輸入電流相位領先 32 3.2.3 MCM操作輸入電流失真 34 3.3 數位化研究現況 36 3.3.1 輸入電流零交越點失真 36 3.3.2 輸入電流相位領先 36 3.3.3 MCM操作輸入電流失真 38 3.4 比較與討論 49 4 第四章 數位平均電流控制之功因修正轉換器設計 52 4.1 目標與應用 52 4.2 規格與架構 52 4.3 功率級與外掛元件的選擇 54 4.4 數位控制器設計 56 4.4.1 平均電流控制電壓迴路 57 4.4.2 平均電流控制電流迴路 58 4.4.3 責任周期前饋機制 61 4.4.4 混合導通模式演算法 63 4.5 模擬設計平台及系統建模 65 4.6 模擬驗證結果 67 5 第五章 FPGA系統實作與量測驗證 70 5.1 實作平台與電路板設計 70 5.2 量測規劃與量測環境 72 5.3 量測驗證結果 73 5.4 預計規格、模擬與量測結果比較 79 5.5 成果比較與討論 79 6 第六章 結論 81 6.1 總結與貢獻 81 6.2 未來工作與研究方向 81 7 參考文獻 84

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