臺灣博碩士論文加值系統

本論文研究的重點在於具有前置功因校正器之AC/DC/AC轉換器架構最佳化
，以探討效率高，元件少，具前瞻性的AC/DC/AC轉換器功率級架構為主軸
。本論文提出具有共中性線AC/DC/AC轉換器架構，其所介紹的新型架構不
需要貴且重的低頻變壓器，功率元件少，又能保持良好性能，實用性高的
結構，可應用於交流電源供應器與在線式不斷電電源供應器的功率級。本
論文隨後提出一個具有雙重功能的功因校正器，解決具有前置功因校正器
之在線式不斷電電源供應器DC-BUS電壓過高的問題，以節省功率級的造價
。最後提出一個更精簡的架構配合向量控制，逆變器兼具充電器之功能，
而且電能只經一級轉換，因此效率高，元件少，是一個極具前瞻性的功率
級架構。

The research of the dissertation focuses on the topologies of
single-phase AC/DC/AC converter with pre-staged power-factor-
correction (PFC). In the beginning, new topologies for PFC-
prestaged AC/DC/AC converter are presented. The introduction of
common-neutral connection simplifies the conventional connection
of AC/DC/AC structure, and gives new topologies that still have
good performance, conform with output safety regulations and
have other advantages such as requiring fewer power devices and
having loweconduction losses. Then a new on-line uninterruptible
power supply (UPS) structure is also presented. It consists of a
dual-functional PFC substituting for an inevitable battery-
voltage booster thereby simplifying the complexity of power
stage. Finally an even simpler topology of power stage for UPS
applications is to be shown. This new single-conversion UPS
mainly consists of a minimized power converter structure which
is capable of providing specified constant output voltage,
phase-controlled battery charr, and input-power-factor
improvement.

Cover
論文[中文本]
Abstract
List of Symbols
Contents
Figures List
Tables List
Chapter I
1.1 Motivation
1.2 Organization
Chapter 2
2.1 Introduction
2.2 Five Commonly-used PFCs
2.2.1 Operation principles
2.2.2 Comparisons for the PFCs
2.3 PFC-Inverter Connections
2.3.1 Classification of single-phase AC/DC/AC converter
2.3.2 Comparisons for the AC/DC/AC converters
2.4 Conclusions
Chapter 3
3.1 Introduction
3.2 AC/DC/AC with Common-Neutral Connection
3.3 An Economical AC/DC/AC Topologies with Common-Neutral Connection
3.4 The Proposed AC/DC/AC Topologies
3.5 AC/DC/AC Topologies with Common-Neutral Connection for 3-Phasc Input Single-Phase Output
3.6 Experimental Results
3.7 Conclusions
Capter 4
4.1 Introduction
4.2 The Proposed Dual-Fuctional PFC Structure
4.2.1 System Description
4.2.2 Dual Functional PFC
4.3 Experimental Results
4.4 Conclusions
Capter 5
5.1 Introduction
5.2 The Proposed Circuit
5.2.1 Power Circuit Description
5.2.2 Basic Theory
5.2.3 Control Principles
5.3 Experimental Results
5.4 Conclusions
Chapter 6
Bibliography
Publication List