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1、 论文题目：基于单周控制的三相 VIENNA PFC电路研究与设计专 业：电力电子与电力传动硕 士 生：李 伟指导教师：张 刚(签 名)(签 名)摘 要由电力电子装置产生的大量谐波注入公共电网，不仅影响了供电质量、增加网损，而且严重时还可能造成设备工作异常，甚至损坏。使用功率因数校正 (Power FactorCorrection，PFC)技术把谐波污染控制在较小的范围内已是当务之急。三相 PFC 技术在解决电力公害方面起着十分重要的作用，已成为近年来研究的热点。本文概述了三相高功率因数整流器主电路拓扑结构的研究现状。总结了目前常用的三相有源功率因数校正拓扑和控制技术的种类及优缺点。在此基础上
2、对单周控制的三相VIENNA结构功率因数校正进行了研究。首先对单周控制原理进行了研究，讨论了单周控制的基本原理及特点，以单周控制的 Buck 电路为例对其控制性能进行分析。其次分析了三相三开关三电平(VIENNA)拓扑的工作过程并对该拓扑进行了数学建模。根据以上原理，将单周控制应用于 VIENNA 结构 PFC 电路中，并将控制方案选为以电源管理芯片 IR1150S为核心的三积分方案。最后探讨了一台 2kW的单周控制的三相 VIENNA高功率因数整流器的设计过程，其中包括开关管、整流管、输出滤波电容等元器件参数的计算、设定及选型等工作，着重给出了输入电感和驱动变压器等磁性元件的选择依据和设计方
3、法。该控制实现了无需乘法器和输入电压检测装置，并实现恒频的直接电流控制，控制简单，功率开关管少。对样机进行了实验验证，实验结果验证了该电路及控制方式的合理性和可行性，该样机输入电流能够很好的跟踪输入电压，输入功率因数较高，基本在 0.96以上。表明了该电路具有较强的实用性和优越性。关 键 词：功率因数校正；单周控制；三相 PFC；VIENNA整流器研究类型：应用研究 Subject :Research and Design on Circuit of Three Phase VIENNA PFC Based on One-cycle Control Specialty :Power elect
4、ronic&Power drives Name : Li Wei (Signature)(Signature)Instructorl: Zhang Gang ABSTRACT With the increasing number of various electrical equipments, low power factor andharmonic pollution has become more and more serious. A large number of harmonics injectedinto the public grid generated by power el
5、ectronic devices is affect the quality of power supply,an increase of the loss of grid, seriously, may also cause the device no working even damaged.Use of Power Factor Correction (PFC) technology to limit the harmonic pollution in thesmaller range is a priority. The three-phase PFC technology plays
6、 a very important role inaddressing the electricity nuisance, and has become a hot research in recent years.This paper introduces the status of the three-phase high power factor rectifier circuittopology, and summarizes the commonly used three-phase active power factor correctiontopology and control
7、 technology types and characteristics. Based on one-cycle control ofthree-phase power factor correction VIENNA structure are studied. The principle of one cyclecontrol was discussed the basic principles and characteristics, then buck circuit as an exampleof its control performance is analyzed. The m
8、athematical model of VIENNA is established.According to the above principle, this paper describes one cycle control for VIENNA structurePFC circuit. The power management chip IR1150S is selected as the core of the threeintegration scheme in the control scheme. Designed a 2kW of three-phase VIENNA re
9、ctifierbased on one-cycle control with high power factor, including the device parameter calculation,setting and selection, especially give the input inductor and a driving transformer magneticelement design method. This control method which does not need a multiplier and an inputvoltage detection d
10、evice can achieve, and has the constant direct current control. The control issimple and has less power switch tube.The prototype was verified by the experiment, experimental results prove that the circuitand the control mode is correct and feasible, the input current can track the input voltage wel
11、l,the input power factor is higher, basically in 0.96 above. It shows that the circuit has strongpracticability and superiority. Keywords: APFC One Cycle Control Three-phase PFC VIENNA RectifierThesis : Application Research 目录目录1 绪论 .11.1 课题的背景及研究的意义 .11.1.1 课题的研究背景.11.1.2 本课题研究的意义.41.2 本课题的国内外研究动态及发展趋势.51.2.1 三相 PFC的研究动态.51.2.2 三相 PFC的发展趋势.81.3 本课题研究内容与研究目标 .92 三相 PFC电路组成及原理.102.1 谐波与功率因数的概述.102.1.1 谐波及功率因数的定义 .102.1.2 功率因数校正技术的分类.132.2 PFC技术的基本原理.142
