摘要近年来，随着全球电子信息产业的蓬勃发展，DC/DC开关变换器在国防领域和民用电子工业领域得到了极其普遍的应用，因此对DC/DC开关变换器的研究是电力电子领域的核心研究内容之一。然而由于DC/DC变换器呈现非线性特性，因此其建模方法的研究具有特殊性和复杂性。42469

本文以PWM型DC/DC变换器为例，采用TIS模块建模法研究建模过程。主要介绍了DC/DC变换器动态建模的研究背景，发展意义以及现状。接着说明了TIS建模法的特点，即将电路分为线性与非线性部分的同时，将非线性部分构建为一个或多个TIS模块。接着对Boost变换器进行TIS模块构建并进行稳态分析以及仿真验证。最后对高阶Sepic变换器进行TIS构建，将其等效为两个TIS模块，并进行运行状态分析以及仿真验证。

关键词  DC/DC变换器 PWM 非线性系统 TIS建模法 Boost变换器 Sepic变换器

毕业设计说明书外文摘要

Title  Research on dynamic modeling of DC/DC based on TIS modeling method                    

Abstract

In recent years, with the vigorous development of the global electronic information industry, DC/DC switching converter in the field of defense and civilian electronics industry it has been very widely used, so the DC/DC switching converter is the core research areas of power electronics one study content. However, since the DC/DC converter is nonlinear characteristics, so study the modeling method has the particularity and complexity.

This article has been PWM type DC/DC converter, for example, the use of Modeling module TIS Modeling process. It introduces the DC/DC converter research background, significance of the development and the status quo. Next, the characteristics of TIS modeling method, will be pided into linear and nonlinear part of the circuit, while the nonlinear part of building one or more TIS modules. Next to Boost converter module constructed and performed TIS steady state analysis and simulation. Finally, the high-order Sepic converter be constructed by TIS, which is equivalent to two TIS modules connected by linear branches. The theoretical analysis is verified by simulation.

Keywords  DC/DC converter  PWM nonlinear systems  TIS Modeling  TI-Boost Converter  TI-Sepic converter

目录

1  绪论 1

1.1  研究背景和意义 1

1.2 相关技术发展现状 1

1.3 本文主要研究内容 4

第二章 TIS建模设计 6

    2.1 TIS三端口模块的推演 6

    2.2 基于SFG方法TIS组建模型 10

2.2.1   理想 TIS组件的开关流图模型(SFG mode1) 10

       2.2.2   TIS组件的大信号模型 11

2.2.3   通用三端口TIS组件的稳态模型 12

2.2.4   通用TIS组件的小信号模型 13

第三章  TI-Boost变换器工作模式建模 15

3.1  TI-Boost变换器工作模式分析 15

3.2  TIS建模 16

3.2.1   TI-Boost拓扑稳态模型 16

3.2.2   理想TI-Boost小信号模型 17

3.3  TI-Boost小信号建模仿真验证