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研究生:游家崧
研究生(外文):YU, Chia Sung
論文名稱:發電機快速響應控制電路之研製
論文名稱(外文):Fast Response Voltage Control for Alternator
指導教授:胡國英
口試委員:姚宇桐林志鴻謝振中
口試日期:2016-07-23
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:電機工程系所
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:中文
中文關鍵詞:快速響應H 型電橋升壓轉換器交流發電機
外文關鍵詞:Fast ResponseH-BridgeBoost ConverterAlternator
相關次數:
  • 被引用被引用:1
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本論文係提出一種結合升壓轉換器與 H 型電橋之發電機電壓控制電路,可改善車用發電機之負載暫態響應,改善特點一為,改善車用發電機於加載瞬間之電壓下衝現象,藉由從法拉第定理所衍生的磁速觀念,使用升壓轉換器進行轉子側(一次)激磁,以加速轉子於加載時的激磁磁速,進而改善定子側(二次)輸出電壓之回升速度,也就是說,可改善發電機輸出電壓於加載時之電壓下衝的現象。改善特點二為,改善車用發電機於卸載瞬間之電壓上衝現象,運用雙晶前向式轉換器之能量回收觀念,在發電機卸載時,藉由 H 電橋電路主動將轉子能量回送至升壓轉換器以進行轉子快速去磁,並抑制定子側之輸出電壓,可改善發電機輸出電壓於卸載時之電壓上衝的現象。於本論文中,首先針對所提之發電機快速響應控制電路進行動作原理說明與分析,緊接著藉由 LTspice IV 模擬軟體,來建構三相發電機模型以模擬所提電路之可行性,最後再藉由實驗結果來驗證其有效性。
In this thesis, a fast response voltage control circuit for the automotive alternator is presented, which combines a boost converter and an H-bridge driving circuit. As compared with the traditional voltage control circuit for the automotive alternator, the proposed one features relatively fast response during the load transient. According to the flux speed derived from Faraday’s law, a high voltage provided by the boost converter magnetizes the rotor during the upload period, so as to accelerate the flux speed and hence to improve the output voltage undershoot of the stator. Also, by applying the energy recycling concept of the two-transistor forward converter, the H-bridge driving circuit can transfer the energy stored in the rotor to the boost converter during the download period, so as to make the rotor fast demagnetized and hence to improve the output voltage overshoot of the stator. First of all, the basic operating principles and associated analysis of the proposed fast response voltage control for the automotive alternator are given herein. After this, the simulation environment based on the LTspice IV software is built up to verify the feasibility of the proposed circuit. Finally, some experimental results are given to demonstrate the effectiveness of this circuit.
目錄

摘要........................................i
ABSTRACT...................................ii
誌謝.......................................iii
目錄........................................iv
表目錄......................................vii
圖目錄.....................................viii
第一章 緒論.................................. 1
1.1 研究動機及目的............................ 1
1.2 研究方法................................. 7
1.3 論文內容架構.............................. 8
第二章 車用發電機與電壓調節器之工作原理........... 9
2.1 前言..................................... 9
2.2 車用交流發電機簡介......................... 9
2.2.1 車用發電機之動能、電能轉換原理............. 9
2.2.2 車用發電機之分類........................ 12
2.3 電壓調節器簡介............................ 16
2.3.1 電壓調節器之工作原理..................... 16
2.3.2 電壓調節器之分類........................ 16
2.4 常用之 12V 車用電源系統................... 19
第三章 發電機快速響應控制電路................... 21
3.1 前言.................................... 21
3.2 發電機快速響應控制電路之拓樸................ 21
3.2.1 電路說明............................... 21
3.3 升壓轉換器電路............................ 22
3.3.1 電路說明............................... 22
3.3.2 升壓轉換器之電路符號定義及假設............. 22
3.3.3 升壓轉換器之動作原理分析.................. 24
3.3.4 升壓轉換器之電壓轉換比推導................ 25
3.4 H 型電橋轉子驅動電路之架構 ................ 26
3.4.1 電路說明............................... 26
3.4.2 電路符號定義及假設....................... 26
3.4.3 穩壓穩壓動作原理分析..................... 27
3.4.4 拋負載控制動作原理分析................... 29
3.5 磁速理論與分析............................ 31
第四章 系統之硬體電路設計....................... 33
4.1 前言..................................... 33
4.2 系統架構.................................. 33
4.3 系統規格.................................. 34
4.4 元件規格設計.............................. 35
4.4.1 符號定義............................... 35
4.4.2 儲能電感 L 1 之選配 ................. 36
4.4.3 濾波電容 C 1 設計..................... 38
4.4.4 開關元件與二極體的選配................... 39
4.4.5 電荷幫浦之設計.......................... 43
第五章 控制器及程式設計流程..................... 45
5.1 前言.................................... 45
5.2 MCU PIC12F1501 簡介.................... 45
5.2.1 PIC12F1501 晶片說明................... 47
5.2.2 PIC 指令架構 ......................... 48
5.2.3 類比數位轉換(ADC)模組................... 48
5.2.4 脈波寬度調變(PWM)模組................... 49
5.2.5 外部中斷函數(Interrupt)模組 ............ 50
5.3 控制器動作流程............................ 51
5.3.1 ADC 模組............................. 52
5.3.2 PI 控制器............................ 52
5.3.3 PWM 模組............................. 54
5.4 應用場合................................. 54
第六章 模擬與實作波形.......................... 55
6.1 前言.................................... 55
6.2 電路模擬結果............................. 55
6.2.1 模擬波形圖............................. 56
6.3 電路實驗結果.............................. 60
6.3.1 實測波形圖............................. 60
6.4 實驗結果說明............................. 63
第七章 結論與未來展望......................... 65
7.1 結論................................... 65
7.2 未來展望................................ 65
符號彙編...................................... 70
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