单相半桥双向AC-DC变换器控制方法研究
单相半桥双向AC-DC变换器控制方法研究(任务书,开题报告,外文翻译,论文13000字,答辩问题)
摘要
随着人类社会的发展，一直支撑人类发展的资源如石油、煤炭、天然气等日益枯竭。为解决能源短缺的问题，人们在不断寻找新的替代能源，与此同时如何提高能源利用效率也是学者们在不断探讨的问题。“能量回馈系统”能够十分有效的提高能源的利用效率，从而缓解能源短缺的问题。双向AC-DC变换器作为能量回馈系统中的关键部件，具有实现能量双向流动的特点，在许多实际工程中得到应用。由双向AC-DC变换器和蓄电池等组成的电池蓄能系统被广泛应用于微电网、车载电池、锂电池化成系统、交流不间断电源系统等领域。因此对于双向AC-DC变换器的研究具有十分重要的现实意义。
本文以双向AC-DC变换器作为研究对象，介绍了其应用领域和重要意义，分析了双向AC-DC变换器在电池蓄能系统中的作用并介绍了几种常用的控制策略，重点研究单周期控制的单相半桥双向AC-DC变换器。针对的分析了变换器的拓扑结构，分析了单周期控制策略的原理，最后用matlab对其进行仿真，观看波形，进行分析。
关键词：双向AC-DC变换器 能量回馈 单相半桥 单周期控制 [资料来源：http://www.doc163.com]
Study on the control method of single phase half bridge bidirectional AC-DC converter
Abstract
With the development of human society, the resources such as oil, coal, natural gas, which support the development of human beings, are increasingly exhausted. In order to solve the problem of energy shortage, people are constantly looking for new alternative energy sources, and how to improve energy efficiency has become a hot research topic in the world. "Energy feedback and reuse system" can greatly improve the efficiency of energy utilization and alleviate the energy shortage problem. As a key part of the energy feedback system, bidirectional AC-DC converter has the characteristics of bidirectional energy flow and has been applied in many practical projects. The battery energy storage system, which is composed of two way AC-DC converter and battery, is widely used in the fields of micro grid, vehicle battery, lithium battery chemical system and AC uninterruptible power supply system. Therefore, the study of bidirectional AC-DC converter is of great practical significance.
This paper introduces the research status and significance of bidirectional AC-DC converter at home and abroad, analyzes the role of bidirectional AC-DC converter in battery storage system, and introduces several common control strategies, focusing on single phase half bridge of single cycle control. Bi-directional AC-DC converter. The topology of the converter is analyzed and the principle of the single cycle control strategy is analyzed. At last, the MATLAB is used to simulate it, watch the waveform, and analyze it.
Key word ：Bi-directional AC-DC converter ；Energy feedback ；Single phase half bridge；Single cycle control
[资料来源：www.doc163.com]
目录
摘要 I
Abstract II
第一章 绪论 1
[资料来源：https://www.doc163.com]
1.1研究背景及意义 1
1.2 双向AC-DC变换器国内外研究现状 3
第二章 单相半桥双向AC-DC变换器工作原理 8
2.1 整流工作模式 8
2.2逆变工作模式 10
第三章 基于单周期控制的双向AC-DC变换器原理分析 12
3.1 单周期控制原理 12
3.2 单周期控制方法建模 13
3.3 稳定性分析 16
第四章 基于单周期的单相双向AC-DC变换器仿真及分析 18
第五章 改进单周期控制的建模与仿真 24
5.1 单周期控制方法的改进 24
5.2 基于改进的单周期控制的单相半桥双向AC-DC变换器建模仿真 25
5.2.1改进的单周期变换器建模 25
5.2.2 改进的单周期变换器仿真 27
第六章 全文总结与展望 32
6.1 全文工作总结 32
6.2 工作展望 32
参考文献 34
[资料来源：https://www.doc163.com]