PSIM仿真平台的直流变换电路的仿真
介绍了DC-DC变换器的原理和分类，讨论了三种典型的DC-DC转换电路的降压转换器，升压电路和降压-升压电路的工作原理、结构和电压的转换关系，在PSIM软件建立仿真模型，分析验证了正确性和优点，并比较三种DC-DC的特性。
毕业论文关键词： DC-DC；变换；升压；降压；升降压
Abstract
Abstract: DC-DC converter is the core part of the switching power supply inverter has been widely used in transportation, industrial, aerospace, energy and other fields, such as frequency control device, electrolytic plating power supply, induction heating power supply, uninterruptible power supply, welding power source. And now the emerging and developing of photovoltaic power generation technology in China will need to use a large number of inverter circuit in order to convert the solar energy into the DC power can be converted into the daily life of the available AC power. In the design process of DC -DC converters, many formulas, among all the formulas and connections, the values of certain parameters has been limited, circuit parameters to determine the need to constantly adjust the repeated calculation, calculation is very complicated. With the power technology and the popularity of computer applications, the use of computer aided design circuit has become a trend in the field of power supply, the use of related design tools greatly improve the efficiency of the circuit design.
The principle and classification of DC-DC converter is introduced, discussed three kinds of typical DC-DC conversion circuit is of buck converter, boost circuit and buck boost circuit principle, the structure and the voltage conversion relationship and in the PSIM software established simulation model of analysis to verify and the merits, and characteristics of the three kinds of DC-DC converter compared.
Keywords: DC-DC; Transform; Boost Voltage; Buck Voltage; Buck/Boost Voltage
目录
摘 要
Abstract
1 绪论 1
1.1研究背景 1
1.2直流变换器辅助设计工具和开发平台分析 2
1.3电力电子仿真概述 2
1.3.1PSPICE 仿真 3
1.3.2Saber 仿真软件 3
1.3.3PLECS 仿真软件 4
1.3.4PSIM 仿真软件 5
1.3.5CASPOC 仿真软件 5
1.3.6基于MATLAB的SIMULINK仿真软件 5
1.4本文研究的主要内容 5
2 直流变换器综述 7
2.1BUCK直流变换器 7
2.2BOOST 直流变换器 13
2.3BUCK-BOOST直流变换器 17
2.4本章小结 21
3 PSIM软件及使用的基本方法的简介 22
3.1PSIM软件特点 22
3.2PSIM基本程序包 22
3.3以BUCK电路为例PSIM设计过程 24
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