臺灣博碩士論文加值系統

摘要
本研究提出了一個無直流鏈電解電容之交流直流交流轉換器搭配多載波脈波寬度調變之技巧。交流直流交流轉換器是由一個交流直流主動前端轉換器，一個直流交流電壓源反流器，和一個在直流鏈20uF的陶瓷電容所組成。利用直流側電壓控制器與負載補償器之設計數值來維持直流鏈電壓。此外，使用多載波脈波寬度調變來降低交流直流主動前端轉換器和直流交流電壓源變流器之共模電壓。其模擬與實驗結果皆驗證本研究所提出之方法與效能。

關鍵字：交流直流交流轉換器；交流直流主動前端轉換器；反流器；多載波脈波寬度調變

Abstract
This study proposes a multi-carrier pulse width modulation (PWM) for AC-DC-AC converter without DC link electrolytic capacitor. The AC-DC-AC converter consists of an AC-DC active front-end converter, a DC-AC voltage source inverter, and a 20uF ceramic capacitor in DC link. The DC bus voltage controller with load compensator is utilized to maintain the voltage of the DC link capacitor at designed value. Furthermore, the multi-carrier PWM is utilized to reduce the common-mode voltage (CMV) of AC-DC active front-end converter and DC-AC inverter. The simulation and test result are presented to validate the performances of the proposed scheme.

Keywords— AC-DC-AC converter; active front-end converter; inverter; multi-carrier PWM .

目錄
摘要 i
Abstract ii
致謝 iii
目錄 iv
表目錄 vi
圖目錄 vii
第一章 緒論 1
1.1 前言 1
1.2 論文架構 2
第二章 文獻回顧 3
2.1 交流直流交流轉換器簡介 3
2.2 交流直流交流轉換器控制與操作 4
2.2.1　直流鏈電壓及電流之控制與操作 4
2.2.2　反流器之弱磁控制 5
2.2.3　永磁同步馬達之操作 6
2.2.4　不平衡輸入電源之操作 7
2.3 結論 7
第三章 操作原理 8
3.1交流直流交流轉換器的動態模型 8
3.1.1　主動前端轉換器之模型 8
3.1.2　主動前端轉換器之控制器設計 11
3.1.3　電壓源反流器-永磁同步馬達負載之模型 13
3.1.4　電壓源反流器-永磁同步馬達負載之控制器設計 13
3.2直流側電壓控制 14
3.3多載波脈波寬度調變技巧 15
3.4脈波寬度調變模型配置對直流側電壓電流之影響 18
3.4.1　向量配置V1和V1：Mode I 20
3.4.2　向量配置V1和V2：Mode II 22
3.4.3 向量配置V2和V1：Mode III 24
3.4.4 向量配置V2和V2：Mode IV 26
3.4.5 向量配置V1和V0/V7：Mode V 28
3.4.6 向量配置V2和V0/V7：Mode VI 29
3.4.7 向量配置V0/V7和V1：Mode VII 30
3.4.8 向量配置V0/V7和V2：Mode VIII 31
第四章 模擬與實驗結果 32
4.1簡介 32
4.2電流前饋項對於直流側及線電流控制模擬結果 34
4.2.1　電流前饋項對於直流側及線電流控制 34
4.2.2　線電流與相電壓之關係 37
4.2.3　不同脈波寬度調變對於共模電壓之影響 38
4.3實驗結果 39
4.3.1　鎖相迴路 39
4.3.2　不同脈波寬度調變對於直流測之影響 40
第五章 結論 87
參考文獻 88

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