cvcf逆变器课程设计

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1、23CVCF逆变器课程设计南昌工程学院课程设计(论文)机械与电气工程院（系）电气工程及其自动化专业课程设计（论文）题目CVCF逆变器课程设计学生姓名叶新颖班级07电气工程及其自动化（3）班学号2007100025指导教师赵冉完成日期2010年12月30日2323CVCF逆变器课程设计目录绪论引言··························································1第1章单相逆变器的概论············································21.1单项逆变器的基本原理····

2、····································21.2单相逆变器主电路拓扑结构····································21.3驱动电路····················································31.4正弦波脉宽调制（SPWM技术）·································41.5输出电压波形控制············································5第2章用MATLB搭建的仿真电路模型·····

3、···························62.1MATLAB软件简介·············································62.22323CVCF逆变器课程设计单相CVCF正弦波逆变器的电路模型·····························62.3PID模块控制的原理和特点·····························72.4RMS模块的功能··············································92.5SPWM模块工作原理···········

4、·······························10第3章主要模块的参数设置·········································133.1PID模块参数的设置·········································133.2SPWM模块参数的设置········································133.3仿真电路中其他元件参数的设置·······························14第4章仿真结果及分析····················

5、························164.1仿真结果波形···············································164.2仿真结果分析···············································172323CVCF逆变器课程设计4.3设计结论···················································18结束语····························································

6、·19参考文献···························································19绪论引言本文提出了一种将重复控制与引入积分控制的极点配置相结合的混合型控制方案。其中重复控制改善系统的稳态性能，极点配置改善系统的动态特性。两种控制方式互为补充，可以同时实现高品质的动态响应和高质量的输出电压波形在电力电子装置中，以CVCF逆变器为核心的UPS得到了广泛的应用，对其输出波形主要的技术要求包括低的稳态总谐波畸变率（THD）和快速的动态响应，由于非线性负载、PWM调制过程中的死区和逆变器系统本身的弱阻尼性等因

7、素的影响，采用一般的闭环PWM控制效果不理想。本文以PID控制模块、RSM模块,采用重复控制反馈改善系统的稳态性能，采用引入积分控制的极点配置改善系统的动态特性，实验结果表明，本方案可以同时实现高品质的稳态和动态特性。2323CVCF逆变器课程设计第1章单相逆变器的概论1.1单项逆变器的基本原理逆变器通俗的讲，逆变器是一种将直流电（DC）转化为交流电（AC）的装置。它由逆变桥、控制逻辑和滤波电路组成．单相恒压恒频率正弦波逆变器电源一般用在对电源质量要求很高的场合。总的原理是直流经振荡电路产生脉动直流（开关管间断导通关闭）或交流电再通过变压器在次极感应出所

8、需电压的交流电。逆变器的工作原理：1.直流电可以通过震荡电路变为交流电2.得到的