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研究生:蕭英男
研究生(外文):Ying-Nan Hsiao
論文名稱:返馳式轉換器之功因修正電路模組並聯運轉
論文名稱(外文):Parallel Operation of Modular Power Factor Correctors with Flyback Converters
指導教授:莫清賢莫清賢引用關係
指導教授(外文):Chin-Sien Moo
學位類別:碩士
校院名稱:國立中山大學
系所名稱:電機工程學系研究所
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:2006
畢業學年度:94
語文別:中文
論文頁數:71
中文關鍵詞:並聯運轉平均相位移返馳式轉換器功因修正電路
外文關鍵詞:power factor correctorfly-back converterparallel operationphase-shift
相關次數:
  • 被引用被引用:11
  • 點閱點閱:448
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  • 下載下載:162
  • 收藏至我的研究室書目清單書目收藏:0
針對大功率範圍運轉需求,本文提出返馳式轉換器之功因修正電路模組作為並聯運轉架構。各模組係獨立運作,且均操作在固定切換頻率、不連續電感電流模式,可藉由簡單的控制電路,達到功因修正和功率調節的功能。並聯運轉之模組在相同的導通率下,不需額外的均流控制,即可使各模組電流自動平均分配;且以平均相位移方式驅動,使總輸入電流於較高功率運轉時,呈現連續電流模式,兼具不連續與連續電流模式之優點。
本文設計製作完成10組100VA功因修正模組。模組之導通率由一單晶片微控制器控制,根據負載需求,調節輸出功率。並聯系統由高複雜度可程式邏輯元件(Complex Programmable Logic Device, CPLD) 產生平均相位移訊號;根據輸出電壓變動,啟動適當模組數量,並加入備用模組輪調功能,平均分配運轉時間。實驗證實此模組並聯運轉架構可達成的各項預期功能。
To fulfill the requirements of the operation in a wide power range, a parallel configuration with modular power factor correctors (PFCs) is proposed. Each PFC module is composed of a bridge-rectifier, a fly-back converter and associated passive filters. The fly-back converter is independently operated at a fixed frequency with a discontinuous inductor current. This allows the modules to achieve a high power factor and to regulate the output power with simple control. With the same duty-ratio and frequency, the total current will be distributed equally to each operating module without complex current sharing control. The operating modules are equally phase-shifted to take the advantages of the continuous current mode when operated at a higher power.
Experiments were conducted to achieve a power rating of 1 kVA by operating 10 PFC modules in parallel. The duty-ratio of the operating modules is controlled by a micro-controller to regulate the output power in accordance with the load requirement. A complex programmable logic device (CPLD) is used for phase-shifting. All modules are operated in turn to share the operating cycles in a more equal manner. Experimental results demonstrate the parallel configuration can achieve the expected performances.
第一章 簡介 1
1-1 研究動機 1
1-2 論文大綱 3
第二章 返馳式轉換器功因修正電路 4
2-1 功因修正電路 4
2-2 轉換器模組並聯架構 8
2-3 並聯模組控制方法 14
第三章 模組並聯架構及操作方法 16
3-1 模組並聯架構 16
3-2 平均相位移 21
3-3 並聯模組輸出功率調節 24
3-3-1 增加模組運轉 25
3-3-2 減少模組運轉 26
3-4 工作模組調度 27
第四章 電路實作與實驗量測 30
4-1 單模組電路 30
4-1-1 電路參數 30
4-1-2 運轉效能 32
4-2 控制電路 34
4-2-1 輸出功率調節電路 34
4-2-2 平均相位移波形產生電路 36
4-2-3 工作模組輪調控制電路 38
4-3 多模組並聯操作 40
4-3-1 單組輸出功率調節 40
4-3-2 模組輸出功率調節及輪調 43
4-3-3 模組並聯運轉 51
第五章 結論 57
參考文獻 59
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