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系統識別號 U0026-1908201414534700
論文名稱(中文) 具定頻變磁滯電流控制之雙降壓式變流器
論文名稱(英文) Dual Buck Inverter with Constant Frequency Variable Hysteresis Current Control
校院名稱 成功大學
系所名稱(中) 電機工程學系
系所名稱(英) Department of Electrical Engineering
學年度 102
學期 2
出版年 103
研究生(中文) 朱湘儀
研究生(英文) Hsiang-Yi Chu
學號 N26014346
學位類別 碩士
語文別 中文
論文頁數 89頁
口試委員 指導教授-李嘉猷
口試委員-張簡樂仁
口試委員-高瑞棋
口試委員-白富升
中文關鍵字 海潮流發電  雙降壓變流器  定頻變磁滯電流控制 
英文關鍵字 Tide power transfer system  Dual-buck inverter  Constant frequency variable hysteresis current control 
學科別分類
中文摘要 本論文主要針對海潮流發電系統研製一組雙降壓變流器,基於海潮流發電所產生之輸出交流電電壓變化範圍較大,利用第一級轉換器將其電壓進行整流並升壓,提供穩定直流電壓給第二級雙降壓變流器進行電能轉換。所提系統在輸入電壓變動及負載變動下,昇壓轉換器能藉由迴路控制將其輸出電壓穩定至所設計之電壓以供給後端雙降壓變流器所使用。本文最主要則是提出定頻變磁滯寬度電流控制機制,能降低頻率變動範圍所帶來的影響,定頻下利於設計濾波器及功率元件選用,控制機制相對變得容易實現,而在定頻變磁滯寬度控制下整體系統輸出弦波電壓漣波及總諧波失真率都低於傳統磁滯電流控制,且能提高整體系統轉換效率。最後建構一組輸出額定500W的雙降壓變流器系統,整體效率最高為97%,總諧波失真皆低於2%。
英文摘要 The purpose of this thesis is to implement a dual buck inverter for tide power transfer system. Because the change of front-end tide power transfer system output AC voltage could be varying and low. By realized the first stage of boost converter to rectify and boost the voltage, then convert power to the second stage of dual buck inverter. The thesis presents a new control strategy of constant frequency with variable hysteresis width. It can design the filter and choose power components easily when using the new type control. Compare to conventional hysteresis current control, by constant frequency variable hysteresis current control, it reduces the total harmonic distortion and the ripple of output voltage. Furthermore, it raises the system of power conversion efficiency. Finally, the thesis proposed a prototype 500 watt dual buck inverter system is implemented. The maximum efficiency of the system is 97% and THD is less than 2%.
論文目次 目錄 頁數
中文摘要 I
英文摘要 II
英文衍生摘要 III
誌謝 IX
目錄 XI
表目錄 XIV
圖目錄 XV
第一章緒論 1
1-1 前言 1
1-2 研究動機與背景 2
1-3 研究方法 5
1-4 論文大綱 6
第二章變流器架構及控制方式 7
2-1 前言 7
2-2 變流器型式 7
2-2-1 橋型變流器 7
2-2-2 半橋型變流器 8
2-2-3 全橋型變流器 9
2-2-4 非隔離型變流器 10
2-2-5 隔離型變流器 13
2-2-6 雙降壓型變流器 14
2-3 變流器調變技術 15
2-3-1 正弦脈寬調變 16
2-4 變流器控制技術 19
2-4-1 電壓控制模式 19
2-4-2 電壓電流雙迴圈控制模式 20
2-5雙降壓變流器控制策略 21
2-5-1 具相位移控制策略 21
2-5-2 混合式調變控制 22
2-5-3 磁滯控制調變 23
第三章雙降壓型變流器分析 24
3-1 前言 24
3-2 雙降壓型變流器系統架構 24
3-3 雙降壓變流器模式分析 24
3-3-1 雙降壓型變流器模式分析 25
3-4 直流訊號及交流小訊號模型推導 31
3-5 系統控制分析 36
第四章電路設計與考量 42
4-1 前言 42
4-2 昇壓轉換器 42
4-2-1 昇壓轉換器設計 45
4-2-2 昇壓轉換器之參數設計 46
4-2-3 昇壓轉換器之控制 48
4-3 雙降壓變流器 50
4-3-1 雙降壓轉換器之參數設計 51
4-3-2 雙降壓變流器硬體電路設計 53
4-4 雙降壓變流器之控制機制 56
4-4-1 定頻變磁滯寬度控制分析 56
4-4-2 定頻變磁滯寬度控制之規劃 57
4-4-3 定頻變磁滯寬度控制之硬體設計 61
4-5 整體系統架構電路圖 64
第五章電路模擬與實驗結果 65
5-1 前言 65
5-2 電路模擬 65
5-2-1 前級昇壓轉換器電路模擬 65
5-2-2 後級三相變流器電路模擬 67
5-3 實驗結果 71
5-3-1 前級昇壓轉換器實驗結果 72
5-3-2 雙降壓變流器實驗結果 75
5-3-3 實驗數據分析與討論 80
第六章結論與未來研究方向 82
6-1 結論 82
6-2 未來研究方向 83
參考文獻 84

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