新型功率因数较正器的分析和设计

摘要单级 PFC 变换器，PFC 级和 DC/DC 级由开关管和控制电路共同集成，同时实现正弦化的输入电流和输出电压快速调节。这种控制适合中小功率场合的应用的原因是因为它有着结构简单、成本低的优势。本文主要研究了单级功率因数校正理论、拓扑和功率因数的分析。
本文在开头，首先简明地阐述了功率因数校正技术现今的研究现状，并且对单级变换器作了分析和归类。在此基础上，总结了基本的单级功率因数校正的拓扑，并做了简明的归纳，来开发新的拓扑。本毕业论文通过对这种新型的单级 PFC 变换器-flyboost 变换器-拓扑进行了较为详细的分析。在本文的最后，给出了仿真实验结果。在全文的最后，总结了研究的内容以及结果。之后结合存在的问题，指出单级PFC 变换器在未来需要关注的问题。 21135
关键词单级PFC 技术功率因数校正 flyboost 变换器
Title     The new PowerFactor Correction's Analysis and Design

Abstract
The single-stage PFC converter combines the PFC stage and a DC/DC converter
into one with a common set of switch and control circuits, while achieving
a sinusoidal input current and the output voltage of quick adjustment at
the same time. This control has a simple structure and low cost advantages,
especially for small and medium-power applications of occasions. This
article focuses on single-stage power factor correction theory, topology,
and analysis of the power factor.
At the beginning of this article, the first succinctly describes the status
of the power factor correction technology research today, and for the
single-stage converter were analyzed and categorized. On this basis,
summarizes the basic single-stage power factor correction topology, and
has done a concise induction, in order to develop the new topology.
Through this paper, a novel single-stage PFC converter-flyboost converter
- topology for a more detailed analysis, and in this paper, the simulation
results are given.
Finally, make a summary of the full text, summarizes the contents of the
study and the results. Combined with the problems pointed out in the future
single-stage PFC converter concern.
Keywords single-stage PFC technology power factor correction
flyboost converter
目   次

1 绪论 . 1
1.1 研究背景 . 1
1.2 AC/DC 变换电路谐波分析及危害 . 1
1.3 功率因数校正技术在国内外的发展 . 2
1.4 功率因数校正技术发展状况 . 3
1.4.1 无源功率因数校正技术 . 4
1.4.2 有源功率因数校正技术 . 4
2 功率因数校正技术 . 5
2.1 几种基本变换器拓扑类型 . 5
2.2 有源两级PFC 变换器    6
2.3 有源单级PFC 变换器    9
3 AC/DC 整流器    11
3.1 直接功率变换    12
3.2 等效输入电阻 Re . 14
3.3 平均输出电流和输出功率    15
3.4 单相AC-DC 变流器拓扑结构   16
3.5 控制系统    17
3.5.1 功率内环控制    17
3.5.2 电压外环控制——二自由度PID控制    18 新型功率因数较正器的分析和设计:http://www.751com.cn/zidonghua/lunwen_13214.html