臺灣博碩士論文加值系統

本論文主要探討多脈波二極體交/直流轉換器之相關技術。多脈波電壓源交∕直流轉換器改善整流器輸入電壓使之接近正弦波，因此，使得市電之輸出電流趨近正弦波。移相式多脈波交/直流轉換器利用變壓器或自耦變壓器達成電壓相移，產生多組不同相位移電壓，降低輸入電流的諧波成分。諧波電流注入法利用整流後輸出電壓中的漣波成分來產生三倍頻電流，將此三倍頻電流注入交流輸入側，來補償整流電路產生的諧波成分。本文利用電路模擬軟體IsSpice模擬並分析各種交直流轉換器電路，藉以評量各個架構之優缺點。

In this thesis, techniques of multi-pulse diode rectifiers are analyzed. The multilevel voltage source converters, the input voltages of the rectifier are modified to approximate sinusoidal waves. As a result, the current flows through the inductor connected between ac source and the rectifier approximates the sinusoidal wave. In phase-shifted multi-pulse converters, transformers or autotransformers are used to change the phases of the input voltages, more than two sets of voltage sources are generated such that the input current harmonic components are reduced. In third harmonic current re-injection techniques, the current is derived from the ripple of the rectified voltage and injected into ac source to compensate the third harmonic current produced by the diode rectifier. Finally, the package software IsSpice is used to simulate and analyze converter topologies.

目 錄
中文摘要I
英文摘要II
誌謝III
目錄IV
圖表目錄VI
符號表IX
第一章 緒論1
1-1 研究動機與目的1
1-2 研究方法2
1-3 論文大綱2
第二章 多脈波電壓源交/直流轉換器3
2-1 六脈波電壓源交/直流轉換器3
2-2 十二脈波電壓源交/直流轉換器13
2-3 Zig-zag變壓器十二脈波電壓源交/直流轉換器18
2-4 多脈波電壓源交/直流轉換器輸出特性比較20
第三章 移相式多脈波交/直流轉換器23
3-1 前言23
3-2 隔離變壓器組成之多脈波移相交/直流轉換器24
3-3 自耦變壓器組成之多脈波移相交/直流轉換器28
3-3-1 十二脈波移相式交/直流轉換器28
3-3-2 十八脈波移相式交/直流轉換器33
3-3-3二十八脈波移相式交/直流轉換器40
3-4 移相式多脈波交/直流轉換器各項特性的比較46
第四章 三次諧波電流注入法48
4-1 前言48
4-2 變壓器作為三次諧波電流注入之電路架構49
4-3 LC諧振電路作為三次諧波注入分路53
第五章 結論與未來研究方向61
5-1 結論61
5-2 未來研究方向62
參考文獻63
附錄一68
模擬電路參數值68
作者簡介69

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