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研究生:陳聖儒
研究生(外文):Sheng-JuChen
論文名稱:數位控制無橋式功率因數校正器之設計與研製
論文名稱(外文):Design and Implementation of a DSP Controlled Bridgeless Power Factor Corrector
指導教授:梁從主
指導教授(外文):Tsorng-Juu Liang
學位類別:碩士
校院名稱:國立成功大學
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:2016
畢業學年度:104
語文別:英文
論文頁數:63
中文關鍵詞:無橋式昇壓型功率因數校正器數位控制平均電流模式
外文關鍵詞:bridgeless boost PFCdigital controlaverage current mode
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傳統昇壓型功率因數校正器於高功率應用時,全橋整流二極體會造成相當大的功率損失。本論文研製一數位控制之無橋式昇壓型功率因數校正器,以數位訊號處理器實行平均電流控制模式,使輸入電流追隨輸入電壓達到高功率因數及低輸入電流失真。論文首先針對功率因數校正器的種類與控制方法進行探討,分析無橋式昇壓型功率因數校正器的動作原理,探討相關重要元件之參數設計,說明數位訊號處理器實現平均電流控制模式之流程,及電壓外迴路與電流內迴路與補償器設計。最後,以數位訊號處理器研製一輸入電壓90-264 Vrms,輸出電壓為400 V,最大功率1300 W之輸出定電壓無橋式功率因數校正器以驗證控制器設計之可行性。最大效率為98.1%,PF最高為0.996,iTHD最低為5.1%。
When conventional boost power factor corrector (PFC) circuit operates in high power application, rectifier bridge diode causes high power loss. A bridgeless PFC circuit with digital signal processor (DSP) control is implemented in this thesis. Average current mode is implemented by DSP and the input current follows the input voltage.Therefore, the PFC converter achieves high power factor and low total harmonic distortion current. Types of PFC converter and the methods of control are discussed. The operating principle of semi-boost PFC converter is analyzed and the parameters of key components are design. The software of average current mode control in DSP is described. Outter voltage loop, inner current loop and the design of the compensator are introduced. Finally, a 1.3 kw bridgeless PFC circuit with DSP control is implemented. Input voltage range is 90 Vrms ~ 264 Vrms and output voltage is constant 400 V. Maximum efficiency is 98.1%. Maximum power factor is 0.996 and minimum iTHD is 5.1%.
Chapter 1 Introduction 1
1.1 Background and Motivation 1
1.2 Organization 4
Chapter 2 Introduction of Boost PFC 5
2.1 Topology of Boost PFC 5
2.2 Family of Bridgeless PFC 8
2.2.1 Semi-boost Bridgeless PFC 9
2.2.2 Pseudo Totem-pole Bridgeless PFC 9
2.2.3 Totem-pole Bridgeless PFC 10
2.2.4 Bridgeless PFC with Bidirectional Switches 11
2.3 Types of PFC Current Control 13
2.3.1 Hysteresis Current Mode 16
2.3.2 Peak-Current Mode 18
2.3.3 Average Current Mode Control 20
Chapter 3 Analysis of Semi-Boost Bridgeless PFC 22
3.1 Operating Principle of Semi-Boost Bridgeless PFC 22
3.2 Analysis of Semi-Boost Bridgeless PFC 30
3.3 Design of DSP Controller 36
3.3.1 Software Program 37
3.3.2 Feedback Loop Design 40
Chapter 4 System Implementation and Discussion of Experiments 46
4.1 Specifications and Key Components Design of Bridgeless PFC 46
4.2 Feedback Loop Software Design 48
4.2.1 Design of Current Loop 48
4.2.2 Design of Voltage Loop 49
4.3 Experimental results and Discussions 50
Chapter 5 Conclusions and Future Works 60
5.1 Conclusions 60
5.2 Future Works 60
REFERENCES 61


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