摘 要
在我们日常生活中,并联谐振变换器随处可见,因为其相比其他变换器而
言结构相对简单,运行稳定且便于维修等优势,最重要的是并联谐振变换器在
并网方面具有很好的优势。随着自动控制技术和微电子技术的不断革新,目前
的技术水平为实现并联谐振变换器调节控制打下坚实的基础,提供扎实的理论
依据。
本次设计主要以并联谐振变换器控制系统设计应用作为研究背景,运用
MATLAB/Simulink 仿真工具搭建相应的仿真模型。并联谐振变换器控制系统拥
有很好的动态特性,运行稳定性高、调速的范围较大,性能可靠等,在实际生
产制造中被广泛的应用。该模型仿真设计对并联谐振变换器 PWM 波可逆控制方
法,通过 Matlab/Simulink 仿真软件搭建仿真模型,运行仿真,并对仿真结果
进行了分析。经过对控制系统进行仿真,可以明显的看出,并联谐振变换器控
制系统响应快,没有超调量,运行稳定,抗外界干扰能力强等特点。
深入学习并联谐振变换器的整体结构和分类,针对并联谐振变换器控制系
统当做研究对象。在对并联谐振变换器控制系统工作原理和各个部分的数学模
型进行深入研究的基础上,在 MATLAB/SIMULINK 对不同部件的传递原理和数学
模型进行了深入的研究,建立并联谐振变换器控制系统动力学模型,通过仿真
结果验证,可以比较各种策略与方案,优化并确定相关参数。最后,对并联谐
振变换器控制系统分析方法进行了详细比较分析,为科学决策提供可靠的依
据。
本次设计经过模型搭建、仿真验证,在学习掌握并联谐振变换器工作特性
的同时,参考得到的仿真结果,为更进一步的设计开发新的产品奠定坚实的基
础。
关键词:并联谐振变换器,DC/DC,软开关,建模与仿真
Abstract
In our daily life, parallel resonant converter can be seen everywhere, because
compared with other converters, its structure is relatively simple, stable operation and
easy to maintain and other advantages, the most important is that the parallel resonant
converter has a good advantage in grid-connection.With the continuous innovation of
automatic control technology and microelectronic technology, the current technical
level lays a solid foundation for realizing the regulation and control of parallel
resonant converter, and provides a solid theoretical basis.
The design of parallel resonant converter control system design and application
as the research background, the use of Matlab /Simulink simulation tools to build the
corresponding simulation model.Parallel resonant converter control system has good
dynamic characteristics, high running stability, a wide range of speed regulation,
reliable performance, etc., is widely used in the actual production and
manufacturing.The simulation design of the PWM wave reversible control method of
parallel resonant converter, through the MATLAB /Simulink simulation software to
build a simulation model, run the simulation, and the simulation results are
analyzed.After the simulation of the control system, it can be clearly seen that the
parallel resonant converter control system has the characteristics of fast response, no
overshoot, stable operation and strong anti-interference ability.
Further study the overall structure and classification of the parallel resonant
converter, and take the control system of the parallel resonant converter as the
research object.In the parallel resonant converter control system working principle
and the mathematical model of each part, on the basis of in-depth study, in the
MATLAB/SIMULINK for different parts of the transmission principle and
mathematical model studied, parallel resonant converter control system dynamics
model is established, through the simulation results verify, you can compare all kinds
of strategy and plan,Optimize and determine relevant parameters.Finally, the analysis
methods of parallel resonant converter control system are compared and analyzed in
detail, which provides reliable basis for scientific decision-making.
This design after model building, simulation verification, in learning to master
the parallel resonant converter working characteristics at the same time, the reference
of the simulation results, for further design and development of new products to lay a
solid foundation.
Key words: Parallel resonant converter, DC/DC, soft switch, modeling and
simulation
目录
摘要.........................................................................................................................................................1
第一章 绪论 .................................................................................................................................................5
1.1 概述....................................................................................................................................................5
1.2 课题研究的现状.............................................................................................................................6
1.3 课题研究的意义.............................................................................................................................9
1.4 仿真工具 MATLAB/Simulink 简介........................................................................................10
1.5 课题的研究内容及章节安排....................................................................................................12
第二章 谐振变换器 .................................................................................................................................13
2.1 建模分析方法...............................................................................................................................13
2.1.1 状态空间平均法 ..................................................................................................................13
2.1.2 电路平均法 ...........................................................................................................................13
2.2 DC/DC 变换技术 .........................................................................................................................13
2.2.1 硬开关技术 ...........................................................................................................................13
2.2.1 软开关技术 ...........................................................................................................................13
2.3 谐振变换器....................................................................................................................................14
2.3.1 串联谐振变换器 ..................................................................................................................14
2.3.2 并联谐振变换器 ..................................................................................................................14
2.3.3 串并联谐振变换器的对偶关系.......................................................................................14
第三章 并联谐振 DC/DC 变换器 ........................................................................................................15
3.1 并联谐振 DC/DC 变换器的结构和工作原理 ........................................................................16
3.2 并联谐振变换器的稳态分析....................................................................................................17
第四章 并联谐振变换器系统仿真......................................................................................................20
4.1并联谐振变换器系统仿真模型 .................................................................................................20
4.2 仿真输出波形及分析.............................................................................................................22
4.3 本章小结 ........................................................................................................................................23
第五章 结束语 .........................................................................................................................................23
参考文献.....................................................................................................................................................24
致 谢 .........................................................................................................................................................26
第一章 绪论