在電力系統中饋線電壓變動幅度過大，會影響到用戶之電器設備性能與壽命，因此國內外對於系統之電壓變動問題均有明確規範，而學者專家們也紛紛提出許多不同的解決方法，近年來隨著電力電子元件之創新與發展，已有諸多學者在研究以動態電壓恢復器來實現電壓調節之目的。
本論文使用的電壓調節器是利用一雙模式全橋逆變器經變壓器耦合串聯於饋線上，以達到調節電壓之目的，此雙模式全橋逆變器集成Buck與Buck-Boost兩種型式，在系統電壓小於規範時，以Buck型式補償電壓；反之在系統電壓大於規範時，以Buck-Boost型式補償電壓，經由此雙模式全橋逆變器使得負載端電壓維持在規範之內，以確保用戶之電器設備不受影響。最後以實驗室等級之電路原型，實現本論文之電壓調節方式。

The feeder voltage fluctuation range is too large in the power system, and it may affect the user's electrical equipment performance and using life. Therefore, at home and abroad for feeder voltage fluctuation of the power system are standard, while experts and scholars have proposed many different solutions. In recent years, while the innovation and development of power electronic components, many scholars in the study of dynamic voltage restorer in order to achieve voltage regulation.
In this thesis, the voltage regulator is a dual mode full bridge inverter through the transformer coupling in series with the feeder to achieve the regulation voltage. The dual mode full bridge inverter integrated Buck and Buck-Boost types, if the feeder voltage is too small in power system, the Buck type of compensation voltage; on the other hand, if the feeder voltage is too large in power system, the Buck-Boost type compensation voltage. The dual mode full bridge inverter maintains the load-side voltage within specifications to ensure that the user's electrical equipment is unaffected. Finally, proposed the available method of voltage regulation, verified by the laboratory prototype.

摘要 ................................................................................................................................... i
Abstract ............................................................................................................................ ii
目錄 ................................................................................................................................. iii
圖次 ................................................................................................................................. vi
表次 ................................................................................................................................. ix
第一章 緒論 ...................................................................................................................... 1
1.1 前言 ............................................................................................................... 1
1.2 研究動機 ......................................................................................................... 1
第二章 文獻回顧 ............................................................................................................... 2
2.1 簡介 ............................................................................................................... 2
2.2 電力品質概述 .................................................................................................. 2
2.2.1 電壓變動規範 ......................................................................................... 2
2.2.2 變壓器分接頭種類 ................................................................................... 4
2.3 動態電壓恢復器概述 ........................................................................................ 4
2.3.1 單一模式之逆變器 ................................................................................... 6
2.3.2 多重模式之逆變器 ................................................................................... 9
2.4 總結 ............................................................................................................. 11
第三章 電路動作原理與設計 ............................................................................................. 12
3.1 簡介 ............................................................................................................. 12
3.2 電路架構與動作原理 ....................................................................................... 12
3.2.1 正常模式 .............................................................................................. 16
3.2.2 補償模式之 Buck 型式 ........................................................................... 17
3.2.3 補償模式之 Buck-Boost 型式 ................................................................. 20
3.3 轉移函數分析 ................................................................................................. 22
3.3.1 Buck 型式之轉移函數推導 ...................................................................... 22
3.3.2 Buck-Boost 型式之轉移函數推導 ............................................................. 27
3.4 逆變器之電壓補償範圍 ................................................................................... 31
3.4.1 Buck 型式之電壓補償範圍 ...................................................................... 31
3.4.2 Buck-Boost 型式之電壓補償範圍 ............................................................. 32
3.5 功率潮流分析 ................................................................................................ 34
3.6 總結 ............................................................................................................. 34
第四章 元件設計 .............................................................................................................. 35
4.1 簡介 ............................................................................................................. 35
4.2 變壓器匝數設計 ............................................................................................. 35
4.3 電感設計 ....................................................................................................... 35
4.3.1 Buck 型式之設計 ................................................................................... 35
4.3.2 Buck-Boost 型式之設計 .......................................................................... 37
4.4 濾波電容設計 ................................................................................................ 38
4.4.1 Buck 型式之設計 ................................................................................... 38
4.4.2 Buck-Boost 型式之設計 .......................................................................... 39
第五章 實驗結果 .............................................................................................................. 41
5.1 簡介 ............................................................................................................. 41
5.2 實驗之電路架構與控制方塊 ............................................................................. 41
5.3 實驗結果與分析 ............................................................................................. 43
5.3.1 電壓驟降模式 ........................................................................................ 43
5.3.2 電壓驟升模式 ........................................................................................ 47
5.3.3 負載變動 .............................................................................................. 51
5.3.4 非線性負載 ........................................................................................... 54
5.4 總結 ............................................................................................................. 56
第六章 結論與未來研究方向 ............................................................................................. 57
6.1 結論 ............................................................................................................. 57
6.2 未來研究方向 ................................................................................................ 57
參考文獻 ......................................................................................................................... 58

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