新型无桥PFC控制BLDC的研究  

Analysis of new bridgeless PFC BLDC control

作　　者：陈晨[1] 张舒[1] 熊奇[1] 张兴杰[1] 

机构地区：[1]浙江工业大学机械工程学院,浙江杭州310014

出　　处：《机电工程》2015年第10期1380-1384,共5页Journal of Mechanical & Electrical Engineering

摘　　要：针对进一步提高功率因素校正(PFC)系统的整体效率并解决电源谐波污染严重的问题,提出了一种新型的高性能的无桥PFC电路拓扑结构,通过采用电感电流断续的工作模式分析了无桥PFC拓扑电路的工作原理并运用模糊PI控制算法对其进行了仿真分析和研究,搭建了无桥PFC实验电路实现了变频压缩机驱动系统电源前级AC/DC功能,同时运用新型无桥PFC技术提出了一种高效率的应用于无刷直流电机(BLDC)驱动系统的方案,并利用Matlab的simulink模块搭建仿真平台对其进行了数字仿真与理论研究。研究结果表明,通过新型无桥PFC技术使BLDC驱动系统减少了相应的开关器件所带来的导通损耗,在一定的输出功率下提高了系统的整体效率,并且降低了系统输入电流的谐波干扰,具有一定的工程应用价值。Aiming at further improving the overall efficiency of the system in power factor correction（ PFC） and to solve the power problem of harmonic pollution,a new high performance bridgeless PFC topology was proposed,the work of PFC circuit was analysised by DICM model and fuzzy PI algorithm was used to the simulation analysis and research,the experiments of bridgeless PFC circuit to achieve a variable speed compressor drive system power pre-AC / DC function was setted up,a highly efficient driving scheme was proposed by using new bridgeless PFC applying to the brushless DC motor（ BLDC） drive system and the simulation platform of simulink in Matlab was builded for digital simulation and theoretical research. The results indicate that by the new bridgeless PFC technology enables BLDC drive system reduces conduction losses arising from the corresponding switching device,in a certain output power improves the overall efficiency of the system and reduce the system input current harmonics interference with certain engineering application.

关 键 词：无桥 功率因素校正 模糊PI 无刷直流电机 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置] TM711[自动化与计算机技术—控制科学与工程]