基于间接电流控制方案的单/三相功率因数校正开关变流器研究  

A new indirect type of single/three-phase PFC converter topology——Analysis,Designing and Experpent

作　　者：高潮[1] 熊宇[2] 

机构地区：[1]深圳信息职业技术学院学报编辑部,广东深圳518029 [2]中山火炬职业技术学院电子工程系,广东省中山市510000

出　　处：《深圳信息职业技术学院学报》2011年第3期68-73,共6页Journal of Shenzhen Institute of Information Technology

摘　　要：在大多数工业运用场合,三相整流电路由不可控二极管或相控晶闸管组成。这种变换器具有功率因数低、输入电流谐波成分高等缺点。利用功率因数校正(PFC)技术可以解决这些问题。论文对最常用的单、三相开关功率因数PFC进行了深入的研究。利用功率平衡和相量图,建立了三相电压型高功率因数整流器的静态数学模型,深入研究了系统参数与功率因数之间的稳态关系。在分析系统静态模型和稳态关系的基础上提出一种间接电流控制(PAC)方案,该方案与传统方案相比,并不检测输入电源电压,因而能减少硬件和降低成本。In most industrial applications, three-phase AC-to-DC voltage type converters consist of uncontrolled diodes or phase-controlled thyristors. Such converters have inherent drawbacks---their power factor is relatively low and their harmonics of line current are relatively high. These problems can be solved by using the Power-Factor-Correction（PFC） technology. In this thesis, the most frequently used three-phase six-switch boost PFC is studied in detail. Based on the steady-state model and the steady-state relationship discussed above, a novel Phase-and- Amplitude control （PAC） strategy is presented. With this strategy, one needn＇ t detect the line voltage, which is necessary if traditional PAC strategy is employed. In this way, both hardware and costs are reduced. The scheme is verified by computer simulations. A prototype is built and the experiment results are also given to verify the steadystate relationship between main circuit parameters and power factor.

关 键 词：功率因数校正 数字控制 优化设计 单相功率因数校正 变换技术 

分 类 号：TM4[电气工程—电器]