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研究生:陳揚霖
研究生(外文):Yang-Lin Chen
論文名稱:不連續/臨界導通模式升壓型功因校正器之線電流失真補償辦法
論文名稱(外文):Line Current Distortion Compensation Method for DCM/CRM Boost PFC Converters
指導教授:陳耀銘
口試委員:潘晴財陳德玉陳建富賴炎生林志毅
口試日期:2016-06-28
學位類別:博士
校院名稱:國立臺灣大學
系所名稱:電機工程學研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2016
畢業學年度:104
語文別:英文
論文頁數:146
中文關鍵詞:功率因數校正升壓型電源轉換器平均電流控制定導通時間變導通時間取樣保持方法無乘法器
外文關鍵詞:power factor correction (PFC)boost converteraverage current mode (ACM)constant on-time (COT)variable on-time (VOT)sample-and-hold (S/H)multiplierless
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本篇論文提出一種應用於具有零電流切換(zero current switching, ZCS)/零電壓切換(zero voltage switching, ZVS)/谷底切換(valley switching, VS)/切換頻率限制(switching frequency limitation, SFL)等功能之不連續導通模式/臨界導通模式升壓型功率因數校正器的失真線電流補償方法。此補償方法結合了傳統的變導通時間(variable on-time, VOT)控制以及平均電流(average current mode, ACM)控制以用於補償嚴重的輸入電流失真現象。另一方面,於本篇論文中,對於因零電流切換/零電壓切換/谷底切換/切換頻率限制等功能,以及市電端EMI濾波器所造成之線電流失真原因也具有詳盡的數學分析與解釋。一般而言,為了提升電源轉換器的效率,零電壓切換/谷底切換與切換頻率限制是必要的功能,但這些功能會使線電流失真更為嚴重。為了補償失真的電流,本篇論文提出一種基於平均電流控制之變導通時間(ACM-based VOT, ABVOT)控制方法。此外,一種基於定導通時間(constant on-time, COT)控制的取樣保持(sample and hold, S/H)方法也在本篇論文中提出,以取代傳統平均電流控制所需要的乘法器。另外,應用本論文所提方法的不連續導通模式/臨界導通模式升壓型功率因數校正器,其小訊號模型亦會被詳盡的分析以用來設計控制迴路的補償器。最後,透過電腦模擬與實作驗證本篇論文提出之方法的可行性及其性能。

A line current distortion compensation method is proposed in this dissertation for DCM/CRM boost PFC converter. This circuit features variable on-time (VOT) control, average current mode (ACM) control, and zero current switching (ZCS)/ zero voltage switching (ZVS)/ valley switching (VS)/ switching frequency limitation (SFL) functions. In order to increase efficiency, the ZVS/VS/SFL functions are usually needed, but in doing so, the line current is usually further distorted. In this dissertation, the mathematical analyses of the line current distortion caused by the DCM/CRM boost PFC converter with ZCS/ZVS/VS/SFL functions and the EMI filter are also conducted to account for the line current distortion. From the results of analyses, the ACM-based VOT (ABVOT) control for the DCM/CRM boost PFC converter is proposed. In addition, the noise-immunity sample-and-hold (S/H) approach of COT-based controller is proposed to replace the expensive multiplier which is usually needed for the conventional ACM-based control. The small signal model of the proposed circuit is also developed for the purpose of compensator design. The validity and the performances of the proposed ABVOT control with S/H approach is demonstrated by simulations and experimental results.

口試委員審定書 I
誌謝 II
摘要 III
Abstract IV
Contents VI
Contents of Figures X
Contents of Tables XIX
Abbreviation XX
Chapter 1. Introduction 1
1.1. Background and Motivation 1
1.2. Objective 2
1.3. Organization 3
Chapter 2. Literature Survey 4
2.1. The Family of Boost PFC Converter 4
2.1.1. CCM Boost PFC Converter 6
2.1.2. DCM Boost PFC Converter 9
2.1.3. CRM Boost PFC Converter 11
2.2. The Definitions of THD and PF 14
2.3. Review of Input Current Distortion Compensation Method 16
Chapter 3. Analyses of Line Current Distortion 19
3.1. The Effects of L and Cds 19
3.1.1. ZCS function 20
3.1.2. ZVS/VS functions 27
3.1.3. SFL function 30
3.2. The Effect of Input EMI Filter 33
Chapter 4. Proposed Compensation Method 36
4.1. The ABVOT Control 36
4.2. The Sample-and-Hold (S/H) Approach 39
Chapter 5. Simulation and Hardware Implementation 47
5.1. Parameters Design 48
5.1.1. Design of L and Cds 48
5.1.2. Design of Lf and Cf 50
5.2. Simulation 51
5.3. Small Signal Analyses and Compensator Design 61
5.3.1. Inner Loop (Current Loop) 61
5.3.2. Outer Loop (Voltage Loop) 69
5.4. Hardware Implementation 73
5.4.1. Diode 73
5.4.2. MOSFET 75
5.4.3. Inductor 78
5.4.4. Control ICs and Sensors 82
Chapter 6. Simulated and Experimental Results 89
6.1. Simulated Results 89
6.1.1. ZVS/VS and SFL Functions 89
6.1.2. Input Current 90
6.2. Experimental Results 100
6.2.1. ZVS/VS and SFL Functions 102
6.2.2. Proposed S/H Appropach 104
6.2.3. Steady State Performance 106
6.2.4. Discussion 121
Chapter 7. Conclusion and Suggested Future Works 124
7.1. Conclusion 124
7.2. Suggested Future Works 125
References 127
Appendix 138
A1. Small Signal Analyses of DCM Boost PFC Converter 138
A2. Magnetic Core Selection 142


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