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1、精品学习资源功率因数校正论文：单周期掌握软件开关Boost 变换器PFC技术的讨论【中文摘要】开关电源是为用电设备供应直流电源的一种电力电子装置 , 获得越来越广泛的应用；但由此产生的网侧输入功率因数降低和谐波污染等问题也日趋严峻 , 功率因数校正 Power Factor Correction, PFC技术可有效地削减网侧输入电流谐波含量并提高电源功率因数 , 正成为电力电子讨论的热点之一；在各种用于PFC变换器的电路拓扑中 ,Boost 变换器因其拓扑结构简洁、变换效率高、掌握策略易实现等优点 , 被广泛应用于 PFC电路中； Boost PFC 变换器基本都是工作于不连续导电模式 Dis
2、continuous ConductionMode, DCM和连续导电模式 Continuous Conduction Mode, CCM；目前, 大多采纳平均电流掌握来达到功率因数校正的, 但平均电流掌握中需要检测输入电压、电感电流、输出电压, 并且使用乘法器来实现, 使得系统掌握复杂 , 投资增加；单周期掌握技术和软开关技术都是近些年来被提出的用于 PFC的新型技术 , 单周期掌握 One Cycle Control, OCC 作为一种新型的掌握方式在功率因数校正Power Factor Correction, PFC电路中得到广泛地应用；单周期掌握是一 种新兴的非线性掌握技术 , 与传统
3、线性掌握相比 , 它考虑到了开关非线性的影响 , 更适合对开关变换器的掌握 , 能使系统有更快的动态响应、更强的鲁棒性和更好的输入波动抑制特性, 并且单周掌握 PFC技术不需要乘法器 , 无需采样输入电压 , 简化了掌握电路的设计；而软欢迎下载精品学习资源开关技术的应用对于降低开关损耗 , 进而提高开关频率 , 无疑起到极为重要的作用；本文采纳的基于单周期掌握的软开关Boost PFC 变换器, 在深化分析了单周期掌握原理的基础上 , 将无源无损软开关技术应用于 Boost PFC 变换器中；本文其次章具体介绍了无源无损软开关的工作过程 , 第三章主要分析了用单周期掌握的Boost 结构有源功
4、率因数校正电路 , 推导出单相 Boost 结构 APFC的单周期掌握方程 , 并用基本的电路实现这种掌握 , 和其他的 APFC掌握电路相比 , 电路结构大大简化；第四章结合单周期掌握芯片IR1150, 采纳分立元器件搭建了 IR1150 的主要掌握电路 , 进行了主电路和掌握电路的主要参数设计；最终通过 Saber 仿真验证了本论文设计的单周期掌握的Boost APFC电路无论在稳态仍是暂态 , 都能保持受控量的平均值恰好等于或正比于给定值 , 即能在一个开关周期内有效抵制系统的扰动, 具有极快的瞬态响应 , 能实现很高的功率因数、很低的谐波重量、且掌握电路简洁；【英文摘要】 Switch
5、ing power supply is a powerelectronic devices, which is widely used to provide DC power for the electrical equipment. However, it has theconsequences that the lower input power factor and harmonicpollution of the network side is becoming serious. Power Factor Correction Power Factor Correction, PFC
6、technology can effectively reduce the input current harmonic contentand to improve power factor, so it is becoming the hot欢迎下载精品学习资源research in the area of the power electronics. In a variety of circuit topologies. Boost converter topology are widely used in PFC circuits, that is because its simple
7、structure, high conversion efficiency, control strategy easy to implement, etc.Boost PFC converter is usually operating in discontinuous conduction mode Discontinuous ConductionMode, DCM and continuous conduction mode Continuous Conduction Mode, CCM. Currently, the average current control is used to
8、 achieve the objective of power factor correction, but the average current control needs to detect the input voltage, inductor current and output voltage, and has to use the multiplier, which would make the system control complex and increase the cost of the product.One Cycle Control OCC and soft sw
9、itch technology are two new PFC technologies, which are proposed in recent years. the One Cycle Control as a new control method for power factor correction circuit has been widely applied. Compared with traditional linear control, One Cycle Control is a new nonlinear control technique. It takes into
10、 account theimpact of non-linear switch, so it is more suitable for the control of switching converters. It also improves the dynamic response and robustness of the system.Without欢迎下载精品学习资源multipliers and sampling the input voltage, the control circuit design is simplified. The soft-switching techno
11、logy plays a very important role to reduce switching losses, and thereby increasing the switching frequency.In this paper, based on single-cycle control.In this paper, One Cycle Control based on soft switching Boost PFC converter is proposed. Based on The One Cycle Control theory, the passive lossle
12、ss soft-switching technology used in Boost PFC Converter is analyzed in depth. In the second chapter, the work process of the passive lossless soft-switching is introduced in detail. And in the third chapter, the author analyzes the structure of the Boost active power factor correction circuit contr
13、olled by the single-cycle, derivesthe equation of One Cycle Control for the single-phase Boost APFC.Compared with the other APFC control circuit, the circuit structure is greatly simplified. In the lastchapter, single-cycle control chip IR1150 is introduced, with that the main control circuit and th
14、e main parameters of the circuit are built.Finally, the proposed One Cycle Control Boost APFC circuit is proved by the Saber Simulation Software,The simulation results illustrate that no matter the system is in steady state or transient欢迎下载精品学习资源state,the circuit system can made the average value of
15、 the controlled amount to be equal to or proportional to the given value. That is, the system could effectively resistthe system disturbance in a switching cycle,has the advantages of the fast transient response, high power factor, and simple structure.【关键词】功率因数校正 Boost 变换器 单周期掌握 软开关【英文关键词】 Power Fa
16、ctor CorrectionBoost converterOne Cycle ControlSoft switch【目录】单周期掌握软件开关Boost 变换器 PFC技术的讨论摘要 6-7Abstract7-8第 1 章 绪论 11-241.1有源功率因数校正 APFC的提出 111.2功率因数技术概述 11-151.2.1功率因数的定义 11-141.2.2谐波电流的危害 14-151.3功率因数校正电路的实现方法15-221.3.1 CCM Boost PFC 变换器16-191.3.2 DCM Boost PFC 变换器 19-211.3.3 PFC 变换器的现状和进展趋势 21-22
17、1.4课题的讨论意义 22-231.5本文主要讨论内容23-24第 2 章 无源无损软开关变换技术24-342.1软开关技术的基本概念24-252.2软开关技术的分类25-262.3无源无损软开关技术 26-272.4无源无损缓冲电路的分类 27-282.5无源无损软开关工作原理28-332.6小结33-34第 3 章 单周期掌握 Boost 变换器 APFC原理 34-443.1 引言 343.2单周期掌握技术的基本理论34-353.3固定频率欢迎下载精品学习资源的单周期掌握技术 35-363.4单周期掌握 Boost 变换器 APFC原理 36-433.4.1 Boost变换器功率级输入输
18、出关系36-383.4.2单周期掌握 Boost 变换器 APFC工作原理 38-413.4.3稳固性分析 41-423.4.4单周期掌握的抗击扰动的才能分析42-433.5小结 43-44第 4 章 单周掌握的软开关 Boost 结构 APFC 电路设计 44-594.1引言 444.2单周期掌握芯片 IR1150 的应用 44-474.2.1单周期掌握芯片 IR1150 的功能 44-454.2.2 IR1150 掌握 Boost 有源功率因数校正功能的实现45-474.3主电路设计 47-514.3.1电路设计条件 474.3.2最大输入功率和 电流运算 47-484.3.3主回路电路参
19、数设计 48-494.3.4功率器件的挑选 494.3.5无源无损缓冲电路的设计49-514.4掌握电路的设计51-584.4.1采样电阻的设计 51-534.4.2电压反馈回路设计 53-55 4.4.3 复位积分器的设计 55-58 4.5 小结58-59 第 5 章 基于单周掌握的软开关 Boost 结构 APFC仿真 59-745.1基于单周期掌握 Boost APFC 电路仿真模型59-605.2对于软开关工作性能仿真验证60-625.3单周期掌握仿真62-725.3.1单周期掌握电路波形仿真62-635.3.2输入电压在峰值和过零点时开关绽开波形63-645.3.3单周期掌握 Boost PFC 稳态仿真波形64-695.3.4单周期掌握 Boost PFC 瞬态仿真波形69-725.4单周期掌握显现 DCM模式缘由分析 72-735.5小结73-74结论 74-76致谢 76-77参考文献 77-81攻读硕士 期间发表的论文 81欢迎下载精品学习资源欢迎下载