Simulink新型三电平功率因数校正器的分析与设计

摘要开关电源以其低损耗和高效率等显著优点，已成为当今工业技术领域中应用最为广泛的一种电源装置。然而，其整流侧常采用二极管不可控电路与交流电网相连，导致交流侧常产生大量的谐波电流和无功功率，从而降低交流侧功率因数并引起一系列谐波危害。本文首先对功率因数校正技术进行较为深入地研究，并详细地讨论和比较各种控制方法。其次，通过将三电平直流变换技术与功率因数校正技术相结合，提出一种平均电流控制方法下Boost 型三电平APFC 电路的拓扑。然后，通过 Matlab软件中 Simulink 模块对 Boost 型三电平 APFC 电路进行外特性仿真并验证其工作原理。最后，通过Saber 软件对 Boost 型三电平APFC 电路进行详细的参数设计和结构仿真。9670
关键词开关电源功率因数校正平均电流控制三电平
Title     Analysis and Design of a New Three-Level   Power Factor Corrector
Abstract
With the significant advantages for low loss and high efficiency, switching
power supply has become the most widely use in today's industrial
technology as a power supply device. However, its rectifier side is often
connected to AC mains with no-controllable diode circuit so that harmonic
current and reactive power may be produced in the AC side, which could
reduce the power factor of the AC side and cause a series of harmonic harm.
This paper focuses more in-depth study on the power factor correction
technology at first, with detailed discussion and comparison of different
control methods. Then, put forward a topology of Boost three-level APFC
circuit under the average current control method through combining
three-level DC transform technology and power factor correction
technology. After that, simulate the external character of Boost
three-level APFC circuit and verify the theory of its work with the Simulink
module of Matlab. At last, design the parameter of a Boost three-level APFC
circuit in detail and simulate its structure through the Saber.
Keywords    Switching Power Supply Power Factor Correction
Average Current Control Three-Level 目   次
1 绪论 1
1.1   开关电源概述   1
1.2   谐波危害与整治   3
1.3   课题意义及内容   5
2 功率因数校正技术 6
2.1   功率因数的定义   6
2.2   有源功率因数校正技术 8
2.3   本章小结   13
3   三电平直流变换技术 13
3.1   三电平直流变换电路   13
3.2   有源功率因数校正技术 16
3.3   本章小结 17
4   三电平功率因数校正电路 18
4.1   三电平功率因数校正电路的分析   18
4.2   三电平功率因数校正电路的仿真 25
4.3   三电平功率因数校正电路的设计 27
4.4   三电平功率因数校正电路的结果 36
4.5   三电平功率因数校正电路的改进 39
4.6   本章小结 41
结论 42
致谢 43
参考文献   44

1 绪论
1.1   开关电源概述
电源是各种电子设备必不可少的组成部分，其性能的优劣直接关系到整个系统安 Simulink新型三电平功率因数校正器的分析与设计:http://www.751com.cn/zidonghua/lunwen_8468.html