摘要
随着电力设备的功率等级不断提高,使得传统Boost PFC变换器存在较大的输入纹波、转换效率较低等缺点。因此,这里将交错并联拓扑结构引入到Boost PFC变换器中,在平均电流控制策略的基础上建立离散化数字控制模型,选择现场可编程逻辑门阵列(FPGA)控制器来实现交错并联Boost PFC电路的数字控制。仿真结果表明,该设计有效优化了电源的性能,使得电源中的谐波电流含量减少,大大提高了开关电源的功率因数。
The continuous rise of the power level of the power equipments makes the traditional Boost PFC convertor appear the disadvantages of bigger input ripple wave and low conversion efficiency. Therefore,in this paper,the staggered parallel circuit topology is introduced into Boost PFC converter,and the discretization digital control model is built on the basis of the average current control strategy. The FPGA controller was selected to realize digital control of the Boost PFC circuit. The experimental results show that the design can optimize the performance of the power supply effectively,reduce the power harmonic pollution and improve the power factor of switching power supply.
出处
《现代电子技术》
北大核心
2015年第8期120-123,共4页
Modern Electronics Technique
基金
福建省计算机应用技术和信号与信息系统研究生教育创新基地资助项目(闽高教[2008]114号)
福建省教育厅科技项目(JK2013028)
关键词
PFC技术
FPGA数字控制
交错并联电路
开关电源
PFC technology
FPGA digital control
staggered parallel circuit
switching power supply
